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PRIMARY ARCHITECTURE

Top-Running Double Girder

COIL ATTACHMENTS

C-Hook, Tong, Mandrel or Magnet

OPERATING PROFILE

Process-Defined Duty

CONTROL OPTIONS

Cabin, Radio, PLC & Automation

Receiving and Unloading

Unload coils from trucks, rail wagons or internal transfer cars. Vehicle clearances, side approach, securing-removal sequence and exclusion zones are coordinated with the crane lift path.

Pickling, Rolling and Annealing

Transfer coils between process lines, buffers and furnace areas. Heat, fumes, moisture, scale and restricted access influence component protection and maintenance arrangements.

Slitting and Processing Lines

Place master coils on uncoilers and remove finished coils or scrap reels. Low-speed positioning, approach limits and attachment clearance are coordinated with line equipment.

Finished-Coil Warehouse

Stack and retrieve coils by order, grade, width and destination. Position feedback, storage maps and inventory integration support higher storage density and traceability.

Truck and Rail Dispatch

Load coils into approved transport saddles or cradles. Loading sequence, vehicle identification and confirmation of stable placement are defined before release.

Outdoor Coil Yard

Outdoor gantry or bridge systems require wind, rain, corrosion, drainage, rail protection and parking or storm-restraint provisions in addition to coil-handling controls.

A process map should identify every pickup position, coil orientation, storage saddle, line center, vehicle lane, personnel route and prohibited zone. It should also record the required cycle rate, queuing logic and production consequence of a crane outage.

For plant-wide planning, steel mill crane systems should separate coil, plate, slab, scrap, roll-change, maintenance and molten-metal duties.

Bridge and End Carriages

Girders, diaphragms, wheels and travel drives are designed from span, duty, fatigue spectrum, wheel loads, lateral forces and runway stiffness.

Process-Duty Hoist

Drum, wire rope, sheaves, reducer, motor and brakes are selected for gross load, lift, speeds, starts per hour and the required reliability strategy.

Coil Attachment

C-hooks, tongs, inside-diameter lifters and approved magnetic systems engage different coil geometries. Attachment mass and center of gravity form part of the load case.

Engagement Confirmation

Limit switches, proximity sensors, load measurement, tong-position feedback or other validated devices establish a permissive before lifting.

Variable-Speed Drives

VFD-controlled hoisting and travel provide smooth acceleration, controlled creep speed and repeatable approach to storage saddles or process-line centers.

Positioning and Data

Encoders, laser positioning, cameras, barcode or RFID readers and warehouse interfaces can identify coils and confirm storage locations.

Coil Geometry

Minimum and maximum mass, outside diameter, inside diameter and face width; eye-horizontal or eye-vertical orientation; center-of-gravity variation; winding and banding condition.

Material Condition

Steel or aluminum grade, temperature, surface finish, coating, edge condition, permitted contact pressure and unacceptable marking or deformation.

Duty and Throughput

Lifts per hour, shifts, annual hours, load spectrum, travel distances, queue size, required cycle time and production consequence of an outage.

Pickup and Placement

Storage saddles, stack pattern, line mandrels, vehicle cradles, approach direction, insertion clearance, target tolerance and release confirmation.

Building and Runway

Rail-center span, runway length and elevation, lift, end and side approaches, roof clearance, existing wheel-load limits and installation access.

Control and Integration

Cabin, radio, semi-automatic or automatic operation; anti-sway; coil identification; WMS/MES protocol; traffic zones; manual fallback and recovery logic.

The attachment must control the coil without crushing the core, marking finished surfaces, opening the winding or allowing the load to migrate. Pads, shoes, hook arms and contact faces are selected from the declared material and surface limits.

Representative-coil testing is required whenever engagement depends on bore size, contact friction, magnet performance, tong pressure or automated recognition. A suspended dead weight does not reproduce every real coil condition.

C-Hook Design

Hook opening, arm length, back height, counterbalance, protective lining, tip shape and rated-load marking are matched to the full ID, OD and width range. The approach path must allow complete insertion without striking the bore or adjacent coils.

Coil Tong Design

Powered tongs require an approved gripping-force range, contact geometry, open/closed feedback, mechanical retention and release prevention while suspended. The control system must identify an incomplete or off-center engagement.

Inside-Diameter Lifter

Mandrel expansion, insertion depth and engagement confirmation are designed around bore tolerance and core strength. The lifter must not release until the coil is supported at the approved destination.

Magnetic Attachment

Magnetic handling is considered only after grade, temperature, air gaps, curvature, banding and contact area are validated. The design defines monitoring, backup retention or power strategy, alarms and controlled release.

Coil Identification

Barcode, RFID, production data or machine vision associates each coil with mass, dimensions, grade, order and storage location.

Positioning and Anti-Sway

Absolute or incremental position feedback, target coordinates and load-dependent anti-sway support repeatable pickup and placement.

Inventory Integration

The interface defines task ownership, material identity, destination, status, alarms, time synchronization and recovery after communication loss.

Possible Design Routes

A project may use the ISO 4301 classification framework with applicable crane and electrical standards, the EN 13001 series with EN 15011 and relevant lifting-attachment requirements, or a North American route using CMAA specifications with applicable ASME B30 requirements. The contract states the selected basis.

Engineering Deliverables

General arrangement, wheel loads, duty basis, coil matrix, attachment data, clearance study, electrical drawings, control narrative, interface list, inspection plan and maintenance-access arrangement.

Manufacturing Inspection

Material identification, welding procedure and welder qualification, specified NDT, dimensional checks, attachment inspection, machinery alignment, panel inspection and coating records.

FAT and Site Acceptance

Functional tests verify motions, limits, brakes, interlocks, attachment engagement, alarms and available automation before shipment. Site testing then covers runway, erection, load testing, representative-coil trials, interfaces, training and handover.

Coil Data

Material and grade; minimum and maximum mass, OD, ID and width; eye orientation; temperature; surface condition; banding; center of gravity; permitted contact marks; drawings or photographs.

Process and Duty

Pickup and placement stations; storage pattern; cycle sequence; lifts per hour; shifts; annual hours; load spectrum; travel distances; target cycle time; outage consequence.

Building and Runway

Span, runway length, rail section and elevation; required lift; approaches; clearances; existing wheel-load limits; runway drawings; installation access and site survey.

Controls and Commercial Scope

Manual or automatic operation; positioning tolerance; WMS/MES protocol; safety zones; voltage and frequency; environment; destination; design standard; Incoterm; installation, testing and documentation scope.

How is coil handling crane capacity calculated?

The starting point is the maximum gross suspended load: coil plus C-hook, tong, mandrel, magnet, hook block and every other item below the hoist. Duty, load distribution and dynamic effects are then applied under the selected design standard.

Is a C-hook or coil tong better?

A C-hook is mechanically simple and effective where the coil bore is accessible. A powered tong supports automated engagement and variable widths but adds mechanisms, sensors and maintenance. Coil geometry, cycle rate, access and automation level determine the selection.

Can magnets safely lift steel coils?

Only when the steel grade, coil geometry, contact area, temperature, air gaps, banding and retention strategy have been validated. A magnetic system cannot be assumed suitable from coil mass alone.

Can one attachment handle the full coil range?

It is possible only when every OD, ID, width, mass, orientation and surface condition falls within the approved envelope. Wide ranges may require adjustable or interchangeable attachments and dedicated storage stands.

How much does a coil handling crane cost?

Public information reviewed in September 2026 included approximately US$9,800–110,000 for a generic 50 t double-girder price guide and US$35,000–140,000 for one 10 t C-hook or clamp-tong coil-crane listing. A final price requires the approved crane, attachment and project scope.

Can an existing runway be reused?

Only after rails, beams, columns, brackets, connections and foundations are checked for condition, alignment, fatigue and the new crane reactions. The crane must remain within verified structural limits or the runway must be strengthened.

Can the crane connect to WMS or MES?

Yes. The interface specification defines tasks, coil identity, coordinates, inventory status, protocol, time synchronization, safety boundaries, cybersecurity, manual override and recovery after a network interruption.

What should be tested before handover?

Testing covers crane motions, brakes, limits, load protection, attachment engagement and release, representative coils, placement tolerance, safety zones, failure responses, interfaces and manual recovery under agreed acceptance criteria.

01 · Intelligent Grab Overhead Crane

A double-girder, four-rope grab system for repeated handling of limestone, clay, gypsum, slag, clinker, coal or other approved bulk materials. PLC control, pile scanning, anti-sway, positioning and plant-system interfaces can support semi-automatic or unmanned operation.

02 · Grab-and-Hook Dual-Purpose Crane

A practical mixed-duty solution where one bay handles both bulk material and unit loads. The design must define attachment changeover, rated load in each operating mode, storage position and controls that prevent an invalid configuration.

03 · Double-Girder Maintenance Crane

A hook crane for heavy process-equipment maintenance in kiln, cooler, crusher, fan, raw-mill and cement-mill buildings. Main and auxiliary hooks, low-speed positioning and maintenance access can be configured around the overhaul method.

04 · Single-Girder Service Crane

An economical option for lighter maintenance, workshop, packing-line and utility-building loads where the verified capacity, span, headroom and operating frequency remain within the selected hoist and runway design.

05 · Double-Girder Gantry Crane

A rail-mounted outdoor crane for equipment yards, maintenance laydown areas and construction or shutdown support where the building cannot provide an overhead-crane runway. Wind, rails, foundations and storm parking are integral design requirements.

06 · Hazardous-Area Crane or Hoist

A certified configuration for a documented combustible-dust or gas classification, such as a defined coal or alternative-fuel zone. Motors, brakes, electrics, controls, cable systems and mechanical interfaces must match the approved classification.

Dust-Resistant Design

Protected electrical enclosures, sealed or guarded components, suitable bearings, cable systems and accessible cleaning points are selected from the actual dust exposure and maintenance regime.

Heat Assessment

Equipment near kiln or clinker areas may require thermal shielding, heat-resistant components, cooling or derating after ambient and radiant temperatures are established.

Hazardous-Area Compliance

Explosion-protected equipment is applied only to a documented classified zone. The complete crane, not merely the hoist motor, must match the agreed protection concept.

Intelligent Bulk Control

Pile scanning, automatic path planning, anti-sway, target-zone control, collision avoidance and hopper interlocks can reduce manual exposure and support repeatable material flow.

Mechanical Protection

Overload protection, motion limits, service and emergency braking, buffers, rail sweeps, anti-derailment measures and maintenance isolators are defined for the selected design.

Operator and Process Interface

Cabin, radio remote or control-room operation is selected from visibility and exposure. Warning systems, cameras, exclusion zones and process interlocks support the site’s operating method.

Design Definition

General arrangement, hook or grab coverage, wheel loads, clearances, cycle calculation, power demand, control philosophy and process interfaces.

Manufacturing Control

Material traceability, dimensional inspection, welding procedures and non-destructive examination records can be included as required by the contract.

Testing and Handover

Factory tests, control simulations, electrical records, installation instructions, site tests, manuals, training and critical-spares recommendations.

Plant and Civil Readiness

Confirm runway alignment, rails, foundations, wheel-load capacity, building clearances, power, earthing, access, erection zone and shutdown interfaces before delivery.

Functional Acceptance

Define no-load and load tests, grab cycles, throughput demonstration, automation modes, interlocks, communication interfaces and operator training in the contract.

Lifecycle Availability

Plan inspection of ropes, grabs, sheaves, brakes, wheels, rails, gearboxes, motors and electrical systems around production and shutdown schedules; stock critical spares before handover.

What type of crane is used in a cement plant?

Grab overhead cranes serve defined bulk-material stores and feed points. Single- or double-girder hook cranes serve kiln, crusher, mill, cooler, fan and workshop maintenance. Gantry cranes can cover outdoor equipment or laydown yards.

How is grab-crane capacity calculated?

Crane capacity must cover the grab self-weight plus the material payload. Payload and grab volume are checked from bulk density, fill factor, particle characteristics and the required operating cycle.

Can one crane handle limestone, clinker, gypsum and coal?

Only after each material is evaluated. Density, abrasion, moisture, particle size, flow behavior, contamination limits and hazardous-area classification may require different grabs, operating modes or separate equipment.

Does every cement plant crane need explosion protection?

No. Explosion protection is required only where the plant has defined a hazardous gas or combustible-dust area. Coal, petcoke or alternative-fuel zones must be checked against the site’s formal classification.

What crane duty class is suitable for cement service?

Duty follows actual cycles and load spectrum. Occasional maintenance may use a lighter class, while continuous grab handling generally requires a higher-duty design. The class must be calculated rather than selected from the industry name.

Can a cement grab crane operate automatically?

Yes. Options include pile scanning, automatic target selection, path planning, anti-sway, collision avoidance, hopper interlocks and DCS or MES communication. Functional boundaries and manual fallback modes must be defined.

What protection is required near a kiln or clinker cooler?

Protection depends on measured ambient and radiant heat. The design may require shielding, high-temperature components, ventilation, cooling, derating, protected cables and an inspection plan suited to thermal cycling.

Can an existing cement-plant runway be reused?

Reuse is possible only after the rails, beams, columns, connections, alignment and allowable reactions are verified for the new crane wheel loads, duty, braking forces and local requirements.

How much does a cement plant crane cost?

Preliminary equipment-only market bands extend from about US$5,000 for simple maintenance cranes to US$120,000+ for conventional larger systems. Automated grab, hazardous-area and plantwide packages require a project quotation.

What information is needed for a cement crane quotation?

Provide the task, material data, throughput, maintenance-load schedule, layout, span, height, travel length, cycles, environment, area classification, runway data, power, controls, destination, code and required supply scope.

SUPPORT OPTIONS

Roof, Runway or Columns

CRANE OPTIONS

Underhung & Top Running

COVERAGE OPTIONS

Bridge, Monorail & Workstation

QUOTE BASIS

Crane + Building Interface

01 · Single-Girder Underhung Crane

A compact bridge suspended below two runways. Electric wire-rope or chain hoists provide three-axis load movement while preserving floor access and useful side approach.

02 · Low-Headroom Underhung Crane

A compact hoist and optimized girder connection increase usable hook height where roof clearance is limited. Rail elevation, beam depth and hook dimension require coordinated checking.

03 · Multi-Point Suspension Crane

Three or more runway support lines distribute loads across a wider building area and extend coverage for long-span or multi-bay workshops. Support synchronization and alignment are central design requirements.

04 · Multi-Support Double-Girder Crane

A suspended double-girder arrangement provides greater rigidity, higher capacity potential and a stable platform for large-span assembly, maintenance and aircraft-hangar applications.

05 · Top-Running Bridge Crane

The bridge runs above runway rails and transfers loads through runway beams and columns. This configuration is normally considered when capacity, span, duty or trolley requirements exceed a practical suspended arrangement.

06 · Workstation Crane or Monorail

Light-duty workstation bridges cover defined cells, while monorails move loads along a fixed route. Both can reduce manual handling when full-bay industrial crane coverage is unnecessary.

Structural Load Path

Runway beams, hangers, connections, trusses, columns and foundations require defined reactions, approved materials and traceable installation details.

Hoisting Protection

Overload limitation, upper and lower limits, emergency stop, brake control, rope or chain guidance and hook-latch requirements follow the selected hoist and service.

Bridge and Trolley Retention

End stops, buffers, wheel engagement, anti-drop or anti-derailment provisions and controlled travel address suspended running equipment.

Travel and Collision Control

End limits, warning devices, restricted zones and anti-collision functions protect multiple cranes, walls, equipment and maintenance areas.

Electrical Protection

Isolation, short-circuit and overload protection, protective grounding, control voltage, conductor guarding and enclosure selection support safe operation and servicing.

Operator Visibility

Pendant travel, radio control, lighting, alarms and camera options are arranged around load path, aisle traffic and blind areas.

Inspection Access

Platforms, access points, lockout locations and component removal clearances are coordinated with roof members and adjacent utilities.

Standards Basis

ASME B30.17 covers cranes and monorails with underhung trolley or bridge; top-running arrangements may invoke ASME B30.2 or another governing standard. Local law remains controlling.

The word “ceiling” describes location rather than structural capacity. Finished ceiling panels, purlins and secondary framing should not be treated as crane supports unless the project structural design specifically assigns that function. Loads must reach engineered roof trusses, rafters, primary beams, columns or an independent support frame.

A suspended runway introduces vertical wheel loads, dynamic effects, bridge acceleration and braking forces, skew forces and local connection reactions. Multi-point cranes also require controlled load distribution across several runway lines. Building analysis should evaluate the governing crane positions and simultaneous crane combinations.

Headroom must be calculated from rail elevation through the end truck, bridge girder, hoist body, hook block, rigging and load. Underhung systems often improve side and end approach, while a low-headroom hoist can increase usable lift. Actual geometry matters more than a generic “low headroom” label.

For an existing facility, survey data should include structural drawings, field dimensions, member condition, previous alterations, roof services and allowable connection methods. Reinforcement, dedicated runway steel or a freestanding system may provide a safer commercial route when the existing roof cannot accept crane reactions.

Henan Mine Crane documents a multi-support double-girder underhung configuration for aircraft manufacturing plants, maintenance hangars and large assembly workshops. The published product family covers 3–40 t capacity, 10–80 m span, 6–30 m lifting height and A3–A5 working classes, with project-specific power and control arrangements.

The application challenge is a broad lifting area with minimal ground obstruction, substantial component dimensions and multiple pickup positions. Several ceiling-supported runway lines distribute the bridge reactions across the approved building structure, while the double-girder bridge provides rigidity for long-span movement and controlled positioning.

A project package should include the hangar structural model, runway-reaction schedule, door and roof clearances, lifting zones, aircraft and tooling envelopes, permitted crane combinations, control philosophy, inspection access and phased installation method. Published ranges identify engineering capability but do not replace project calculations or structural approval.

View Multi-Support Ceiling Crane →

Building Survey and Approval

Verify drawings, member sizes, support locations, connection restrictions, roof services, access and existing structural condition before final design.

Runway and Hanger Fabrication

Manufacture runway beams, hangers, brackets and connections from approved details with traceable materials, dimensions and inspection points.

Installation Method

Plan delivery sequence, work-at-height controls, lifting equipment, temporary support, assembly zones and production shutdown requirements.

Rail and Runway Alignment

Check elevation, straightness, span, support spacing, flange condition, end stops and transitions before bridge installation and powered travel.

Electrification

Install conductors, festoons, isolators, grounding, control stations and communication equipment with protected access for inspection.

Functional Commissioning

Verify drives, brakes, limits, buffers, warning devices, anti-collision, radio or pendant control and emergency functions without load.

Load and Site Acceptance

Complete required proof, rated-load and operational tests under the approved procedure with documented results and assigned responsibilities.

Preventive Maintenance

Establish inspection intervals for supports, connections, rails, end trucks, wheels, brakes, ropes or chains, conductors and controls from actual service.

Load Data

Maximum and typical mass, dimensions, center of gravity, pickup points, rigging or attachment weight and any future lifting requirement.

Coverage and Geometry

Required travel area, runway length, span, rail elevation, lowest pickup, highest placement, hook approach and overhead obstructions.

Building Structure

Roof truss, rafter, beam, column and foundation drawings; support spacing; allowable reactions; connection restrictions and structural condition.

Duty and Throughput

Moves per hour, load spectrum, shifts, annual operating hours, full-load frequency, travel distance and production consequence.

Motion and Control

Required hoist, trolley and bridge speeds, low-speed range, pendant or radio control, cabin, automation and positioning tolerance.

Power and Environment

Voltage, frequency, phase, indoor temperature, dust, humidity, corrosion, washdown, clean-area or hazardous classification.

Installation Conditions

Site access, delivery opening, available lifting equipment, work-at-height rules, shutdown window, power readiness and test weights.

Commercial Boundary

Trade term, runway and support steel, reinforcement, installation, statutory inspection, training, spare parts, documentation language and schedule.

Is a ceiling crane the same as an overhead crane?

Ceiling crane is a broad commercial term. It can describe an underhung bridge, suspended monorail, workstation crane or conventional overhead bridge crane installed near the roof. The support arrangement determines the correct technical name.

Can a crane be attached directly to a building roof?

Only approved structural members and connections may carry crane loads. Finished ceiling panels and unverified secondary members are not crane supports. A qualified structural assessment is required before installation.

What is the difference between underhung and top-running cranes?

An underhung bridge runs below suspended runway beams and preserves floor space. A top-running bridge runs above runway rails and generally provides a stronger route for higher capacities, wider spans or heavier duty.

What capacity is practical for an underhung ceiling crane?

Many conventional underhung systems are applied at 10 t or below, although engineered multi-point and double-girder systems can cover higher capacities. Building reactions, span and duty determine practical limits.

Does an underhung crane improve hook coverage?

Underhung end trucks and cantilever options can improve bridge end approach, and the hoist may travel closer to runway limits. Final coverage depends on end-truck length, girder connection, hoist geometry and structural clearances.

Can a ceiling crane be installed in an existing workshop?

Yes, subject to survey and structural verification. Reinforcement, dedicated runway steel or an independent support frame may be necessary when existing roof members or connections cannot accept crane reactions.

Which data controls usable lifting height?

Rail elevation, end-truck depth, bridge girder depth, hoist headroom, hook block, rigging, attachment and load height jointly define usable lift. Roof height alone is insufficient.

How much does a ceiling crane cost?

Total cost depends on capacity, span, duty, runway, hangers, reinforcement, power, controls, freight, installation and testing. General bridge benchmarks support early budgeting, while a ceiling-supported system requires a project quotation.

Which safety standard applies to an underhung crane?

ASME B30.17 addresses cranes and monorails with an underhung trolley or bridge in applicable projects. Other jurisdictions may require EN, ISO, national or statutory rules. The governing basis must be stated in the contract.

What should be included in the final quotation?

The proposal should identify crane and hoist parameters, runway and support scope, reactions, controls, safety devices, documents, tests, packing, freight, erection, commissioning, training, spare parts, exclusions and schedule.

SYSTEM FAMILY

Overhead, Gantry or Portal

PRIMARY ATTACHMENT

Mechanical or Powered Grab

OUTPUT BASIS

Net Payload and Actual Cycle

PRICE BASIS

Project-Specific Quotation

Production Feeding

Transfer from storage pits or stockpiles into hoppers, furnaces, crushers, mixers and process lines.

Stockyard Transfer

Loading, unloading, sorting and stockpile management across indoor or outdoor storage areas.

Waste and Recycling

High-cycle movement, blending and feeding of municipal, industrial or recyclable material.

Port Cargo Handling

Ship-to-shore or terminal transfer where outreach, luffing, slewing and grab duty are required.

01 / MATERIAL

Material Characteristics

Bulk density, particle range, moisture, flowability, compaction, abrasion, corrosion and temperature determine the grab.

02 / PAYLOAD

Capacity and Grab Weight

The specification must state whether capacity means total suspended mass or net material capacity below the grab.

03 / OUTPUT

Throughput and Cycle

Required tonnes per hour, pick and discharge points, travel distances and operating availability establish performance.

04 / GEOMETRY

Pickup and Discharge Layout

Stockpile, pit, bunker, vessel and hopper geometry determine span, lift, travel, outreach and clearance.

05 / CONFIGURATION

Overhead, Gantry or Portal

Coverage, supporting structure, outdoor exposure, floor traffic and vessel interface govern the system type.

06 / DUTY

Service and Reliability

Cycles per hour, operating hours, load spectrum, starts and production criticality establish the required duty.

07 / ENVIRONMENT

Dust, Corrosion and Hazard

Airborne dust, combustible material, corrosion, humidity, wind, rain and classified areas require formal review.

08 / SCOPE

Controls and Project Boundary

Cabin, radio or automation plus rails, power, civil work, freight, erection, testing and training must be defined.

Four-Rope Mechanical Grab

A four-rope clamshell grab uses dedicated holding and closing ropes and is commonly selected for repeated high-cycle handling of free-flowing material. Winches, drums, ropes and grab are engineered together.

Electro-Hydraulic or Motor Grab

A powered grab supports detachable or mixed-use duties. Attachment power, cable management, maintenance access and achievable cycle performance require inclusion in the crane design.

Orange-Peel or Special Grab

Irregular scrap, rock and mixed waste may require an orange-peel or purpose-designed attachment. Tine shape, penetration, closing force and retention are matched to the feed.

Grab and Hook Combination

A detachable grab and hook configuration supports mixed bulk and unit-load work. Conversion frequency, connection method and attachment storage form part of the specification.

STEP 1

Material per Cycle

Effective grab volume, bulk density and realistic fill factor establish net material mass. Grab and rigging mass are checked against capacity.

STEP 2

Complete Cycle Time

Closing, hoisting, trolley and bridge travel, lowering, opening, return travel and positioning form the complete cycle.

STEP 3

Operating Availability

Pile shape, digging resistance, hopper waiting, spillage, control response, inspection and process delays reduce practical output.

Grab Overhead Crane

An overhead crane provides full-bay coverage without crane legs occupying the floor. It is suitable above storage pits, bunkers and process buildings with an adequate runway structure.

Single- or Double-Girder Design

Single-girder construction can suit moderate capacity and intermittent service. Double-girder construction is evaluated for higher duty, larger grabs, wider spans, open-winch machinery and maintenance access.

Dedicated or Dual-Purpose

A dedicated grab crane supports repeated process duty. A grab-and-hook crane covers more task types but requires defined conversion procedures and may not match a dedicated high-cycle system.

Control Method

Cabin operation supports process supervision; radio control supports selected manual duties; automated operation supports repeatable routes and plant integration.

Grab Gantry Crane

A gantry crane transfers reactions through crane legs to rails and foundations. It can cover outdoor stockpiles or buildings without an elevated overhead-crane runway.

Rails and Foundations

Wheel loads, rail alignment, foundation stiffness, drainage and settlement criteria affect reliable travel. Vehicle and pedestrian crossings require coordinated protection.

Outdoor Protection

Wind limits, storm anchoring, rail clamps, corrosion protection, rain covers, drainage and cable management form part of an outdoor design.

Vessel and Quay Interface

Working radius, vessel hatch position, water-level range, quay elevation and portal clearance establish the operating envelope.

Luffing, Slewing and Travel

Coordinated hoisting, luffing, slewing and portal travel determine cargo cycle time. Drives and controls reflect duty, wind and terminal procedures.

Quay Infrastructure

Rail gauge, wheel loads, power, storm anchoring, cable routes, access and maintenance zones must suit the quay structure.

Cargo Route

Grab discharge may feed a hopper, conveyor, truck or storage system. Dust containment, spillage control and traffic coordination affect the terminal solution.

Motion and Position

Variable-frequency drives, position feedback and anti-sway functions can support controlled cycles and accurate discharge.

Automatic Routes

Defined pick, transfer and discharge paths can include pile scanning, restricted zones and hopper selection.

Dust and Wear

Controlled discharge, protected enclosures, suitable coating and replaceable grab wear parts reflect the material and atmosphere.

Hazardous Areas

Zone classification, ignition data, equipment category, surface temperature, earthing and all ignition sources require formal review.

STEEL INDUSTRY · AUTOMATED BULK TRANSFER

Unmanned Grab Bucket Overhead Crane for Baowu Group Shaoguan Steel Plant

The project serves a bulk-material process associated with rotary-hearth-furnace steelmaking. Crane configuration and automatic control were developed for repeated material pickup, transfer and discharge within the designated production area.

ENGINEERING

Application Review

Material, output, cycle, capacity, geometry, duty, wheel loads, controls and site interfaces are reviewed before design.

MANUFACTURING

Controlled Production

Fabrication, machining, assembly, coating and component installation follow approved drawings and agreed processes.

VERIFICATION

Inspection and Testing

Dimensions, welds, mechanisms, electrics, protection devices and factory functions are checked under the contract plan.

DOCUMENTATION

Project Document Package

Approved drawings, data sheets, electrical diagrams, manuals, certificates, inspection records and test documents are supplied as specified.

Pre-Installation Verification

Runway or rail geometry, foundations, clearances, power, access, lifting plan, storage area and responsibilities are confirmed before erection.

Commissioning and Acceptance

Alignment, electrical checks, limits, brakes, protective functions, load tests, grab operation and process interfaces follow the agreed plan.

Duty-Based Maintenance

Ropes, drums, sheaves, brakes, wheels, rails, grab pins, bushes, shells, cutting edges, hydraulics and electrics require documented inspection.

Crane Equipment

Structure, trolley, drives, ropes, drums, brakes, wheels, electrics, controls and safety functions.

Grab and Process

Grab type, volume, wear materials, attachment power, automation, sensors and process interfaces.

Infrastructure

Runways, columns, rails, foundations, power, cable routes, dust control and access platforms.

Delivery and Site Work

Packing, freight, import charges, erection, commissioning, tests, training and spares.

What materials can a bulk handling crane move?

Typical applications include coal, ore, coke, slag, lime, sand, aggregates, biomass, waste and selected grain products. Material data determine suitability.

Which grab is suitable for bulk material?

Free-flowing material commonly uses a clamshell grab. Irregular scrap or waste may require an orange-peel or special-purpose grab. Geometry, force, wear and power arrangements are material-specific.

Does crane capacity include the grab?

Capacity terminology must be stated in the contract. It may describe total suspended mass including the grab or net material capacity below the grab.

How is throughput calculated?

Net material per cycle comes from effective grab volume, density and fill factor. Hourly output then depends on the complete operating cycle and availability.

When is a gantry crane preferable?

A gantry crane is commonly evaluated for outdoor yards or sites without an elevated runway. Coverage, foundations, traffic and environmental exposure govern the choice.

Can bulk handling cranes operate automatically?

Automation can include position feedback, pile scanning, anti-sway, defined routes, hopper selection, restricted zones and plant-control communication.

Can a grab crane handle combustible dust?

Suitability depends on formal hazard classification. The complete crane, grab, electrical system, mechanical ignition risks, earthing and dust controls must comply.

Is a grab crane suitable for fine powder?

An enclosed grab and extraction can be evaluated, but conveyor, screw or pneumatic transfer may be more suitable where containment and continuous flow govern.

How much does a bulk handling crane cost?

Price depends on capacity, grab, duty, output, span, automation, infrastructure, protection, freight and site services. Supply boundaries must be normalized before comparison.

What is required for a quotation?

Material, throughput, layout, capacity basis, span, lift, travel, duty, controls, environment, power, infrastructure, country and required project scope are required.

Single-Girder Grab Crane

Economical overhead configuration for intermittent light- and medium-duty bulk transfer.

Intelligent Double-Girder Grab Crane

High-duty system for demanding cycles, automation and process integration.

Grab and Hook Overhead Crane

Dual-purpose system for bulk material and conventional hook loads.

Grab and Hook Gantry Crane

Ground-supported solution for stockyards and sites without an overhead runway.

Portal Harbor Crane

Luffing and slewing terminal crane for vessel-to-quay bulk cargo transfer.

Unmanned Grab Bucket Crane

Automated process-crane application for repeatable bulk transfer.

BRIDGE STRUCTURE

Single or Double Girder

RUNWAY ARRANGEMENT

Top Running or Underhung

LIFTING SYSTEM

Hoist or Winch Trolley

PROJECT INPUTS

Load, Span, Lift and Duty

Workshop and Assembly

Transfer components between machining, fabrication and assembly stations. Define the load orientation and positioning needs at each station.

Warehouse and Maintenance

Serve storage lanes and equipment repair areas within the crane bay. Check hook access around racks, machines, doors and overhead services.

Process Material Handling

Match the lifting attachment and operating duty to bulk materials, steel products or specialised production tasks.

01 / LOAD

Load and Handling Route

List the heaviest load, typical load, dimensions, centre of gravity and lifting attachment. Mark pickup and placement points so the hook can reach each position without obstruction.

02 / BUILDING

Building and Runway

Provide a plan and cross-section showing runway levels, roof steelwork, columns and services. Existing supports require a structural assessment using the proposed crane reactions.

03 / OPERATION

Production Cycle

Describe lifts per hour, travel distances, operating shifts and the proportion of lifts near rated load. These inputs affect mechanism selection and duty classification.

04 / SITE

Environment and Access

Identify heat, dust, moisture, corrosion or explosive atmospheres. Reserve access for inspection, lubrication and removal of components during maintenance.

Hoisting: Vertical Movement

The lifting mechanism raises and lowers the suspended load. Select rope travel, hook arrangement, braking and speed control around the lift and placement requirements.

Trolley Travel: Across the Bay

The trolley or travelling hoist moves along the bridge. Trolley dimensions and end clearances affect how closely the hook can approach either side.

Bridge Travel: Along the Bay

End carriages move the bridge along the runways. Wheel arrangement, drive selection and runway alignment must work together over the travel length.

Load and Motion Protection

Specify overload protection, hoisting and travel limits, braking arrangements, emergency stops and relevant electrical protections. Confirm how each function will be demonstrated at acceptance.

Operator Control

Choose pendant, radio remote or cabin operation around visibility and operator access. For multiple control stations, define selection priority and the response to a lost command signal.

Shared Runways and Automation

Where cranes share a bay, assess collision prevention and operating separation. Anti-sway, positioning and process interfaces require a defined performance target and acceptance method.

Installation Interfaces

Agree who supplies the crane, runway beams, rails, conductors, supporting steelwork and foundations. Provide unloading access, assembly space and the planned installation window.

Acceptance and Documentation

Agree drawing approvals, inspection records, electrical diagrams, manuals and the factory and site test scope before ordering. Define the responsibilities for site commissioning and operator familiarisation.

Maintenance Access

Plan access to the hoist, trolley, wheels, drives and power supply. Identify replacement clearances and the spare parts needed for the operating schedule.

Equipment

Bridge, end carriages, hoist or trolley and controls.

Site Interfaces

Runway, electrical feed, supports and installation scope.

Project Delivery

Documentation, testing, packing, transport and commissioning.

Single-Girder Bridge Crane

Explore a single-girder electric-hoist arrangement.

Double-Girder Bridge Crane

Review the double-girder electric-hoist configuration.

Multi-Support Underhung Crane

Review a suspended design with multiple supports.

Double-Trolley Bridge Crane

Explore independent and coordinated lifting arrangements.

Explosion-Proof Bridge Crane

Review equipment for a specified hazardous environment.

5 Ton Overhead Crane

Compare configurations for a metric 5-ton requirement.

EQUIPMENT CONDITION

New · Project Configured

BRIDGE STRUCTURE

Single or Double Girder

RUNWAY ARRANGEMENT

Top Running or Underhung

CONTROL OPTIONS

Pendant · Radio · Cabin · Automation

Manufacturing and Assembly

Machinery components, fabrications, tooling, molds and assemblies moving between production stations.

Warehousing and Maintenance

Inbound materials, stored equipment, maintenance assemblies and controlled loading operations.

Steel and Metallurgy

Coils, plates, billets, ladles, scrap, process equipment and high-temperature production materials.

Power and Process Industry

Generators, turbines, pumps, production equipment and planned maintenance loads.

Bulk Material Handling

Grab-crane systems for coal, ore, aggregate, biomass, waste and process feedstock.

Hazardous and Special Areas

Classified, corrosive, dusty, high-temperature or cleanliness-controlled operating environments.

01 / LOAD

Maximum Load and Attachment

Rated capacity includes the lifted item and below-the-hook equipment. Load geometry and centre of gravity affect the handling arrangement.

02 / COVERAGE

Working Area and Hook Envelope

Span, runway length, hook approaches, lift and obstructions determine usable coverage inside the crane bay.

03 / DUTY

Load Spectrum and Operating Cycle

Working class and mechanism ratings are aligned with operating hours, starts, travel and the proportion of heavy lifts.

04 / BUILDING

Runway and Structural Capacity

Wheel loads, lateral forces, rail size, support spacing and allowable clearances must be coordinated with the supporting structure.

05 / OPERATION

Control and Motion Performance

Control position, speeds, variable-frequency drives, anti-sway and positioning functions are selected for the handling process.

06 / PROJECT SCOPE

Delivery and Site Responsibility

Runway, power distribution, freight, erection, commissioning, testing and documentation require defined responsibility.

New-Build Facility

Early coordination permits the crane envelope, runway elevation, support spacing, electrical feed and maintenance access to be incorporated into the building design.

Existing Runway

An existing runway requires dimensional and structural assessment. Rail condition, alignment, span, support spacing and permissible reactions are evaluated against the proposed crane.

Freestanding Runway

Independent runway columns can separate crane reactions from the main building where space, foundations and operating routes permit a freestanding support structure.

Hoisting Mechanism

Wire-rope electric hoists provide a compact mechanism for many general-purpose single- and double-girder cranes. Winch trolleys permit alternative reeving, machinery layouts, access provisions and redundancy for demanding service. The selected mechanism is matched to capacity, lift, speed, duty, headroom and maintenance strategy.

Bridge and Trolley Travel

Motor, brake, wheel and drive arrangements are developed for the travel distance, acceleration, operating frequency and required positioning performance. Variable-frequency control can provide smoother acceleration and deceleration where the process requires controlled motion.

Control Options

• Pendant control: local control for conventional workshop service.
• Radio remote control: flexible operating position with the specified control functions.
• Operator cabin: elevated control position for process cranes, long travel routes or defined visibility requirements.
• Remote station: control from a fixed operating room or protected station.
• Automated operation: positioning, interlocks and process communication developed from a defined functional specification.

Load and Hoist Protection

Upper and lower travel limits, overload protection, braking and other mechanism safeguards are specified for the lifting arrangement.

Travel Protection

Travel limits, end stops, buffers, audible or visual warnings and anti-collision functions are applied for the operating layout.

Electrical Protection

Isolation, emergency stopping, short-circuit, phase and motor protection are coordinated with the electrical design and site supply.

Access and Maintenance

Platforms, walkways, guards, access points and maintenance clearances are defined where required by the crane arrangement.

Hazardous Areas

Gas or dust classification, temperature class, zone information and material properties are required before an explosion-protected configuration can be established.

Outdoor or Corrosive Service

Weather exposure, wind, ambient temperature, humidity, chemicals and coating requirements determine environmental protection measures.

Capacity, Span and Lift

Structural size, hoisting equipment, rope capacity and building interface change with the lifting geometry.

Duty and Motion Control

Operating cycle, speeds, variable-frequency drives, positioning functions and redundancy affect equipment selection.

Environment and Compliance

Hazard protection, temperature, corrosion, outdoor exposure and project documentation add specific engineering requirements.

Runway and Site Scope

Runway steelwork, freight, unloading, installation, commissioning and site testing can materially change total project cost.

Henan Mine Crane develops the manufacturing package from the approved technical agreement and general arrangement. Production and inspection requirements are connected to the selected crane structure, mechanisms, electrical system and contracted documentation scope.

• Approved general arrangement and interface dimensions before production release
• Material, fabrication and component controls defined by the manufacturing plan
• Electrical and mechanism checks performed against the agreed configuration
• Inspection points, test activities and records aligned with the contract
• Packing and shipment planning coordinated with crane dimensions and destination

Manufacturing facilities and production scenes are presented in the Henan Mine Crane factory display.

01

Engineering Approval

Project drawings, interfaces, components and commercial scope are approved before manufacturing release.

02

Production and Inspection

Manufacturing, assembly checks and agreed inspection activities follow the approved project package.

03

Packing and Delivery

Shipment preparation reflects component protection, lifting points, package dimensions and the contracted delivery term.

04

Site Installation

Runway readiness, lifting access, electrical services and installation responsibilities are confirmed before site work.

05

Commissioning and Handover

Functional checks, agreed testing, records and operating documentation support formal project handover.

Load and Operation

• Maximum and typical lifted loads
• Load dimensions and attachment weight
• Lifts per hour and operating shifts
• Required speeds and positioning needs

Building and Coverage

• Runway span and travel length
• Required lifting height and hook positions
• Runway and support information
• Roof, wall and service clearances

Environment and Supply

• Indoor or outdoor operating conditions
• Temperature, dust, corrosion or hazard data
• Electrical power supply
• Project location, delivery term and required services

Single-Girder Overhead Crane

Electric-hoist bridge crane for general production, warehousing and maintenance service.

Double-Girder Overhead Crane

Two-girder structure for demanding duty, alternative trolley layouts and defined lifting envelopes.

Multi-Support Underhung Crane

Suspended multi-support arrangement for compatible building and runway conditions.

Double-Trolley Overhead Crane

Two lifting mechanisms for defined two-point handling and long-load operations.

Explosion-Proof Overhead Crane

Purpose-configured lifting equipment for specified hazardous operating areas.

5 Ton Overhead Crane

Five-ton bridge crane configurations for industrial facilities and defined operating duties.

PRIMARY DUTIES

Dies, Fixtures, Components and Maintenance

PLANT ZONES

Press, Body, Powertrain and Assembly

CRANE OPTIONS

Bridge, Underhung, Workstation or Semi-Gantry

CONTROL LEVELS

Manual, Assisted, Semi-Automatic or Automatic

1. Coil and Blank Receiving

Unload coils, sheet packs and production materials, then transfer them to storage or blanking lines. Coil orientation, attachment choice, surface protection, aisle clearance and delivery-vehicle exclusion determine the handling concept.

2. Press Shop and Die Store

Retrieve matched die sets, transport them along a protected route and position them at the press or die-change cart. High load, short change windows, offset centers of gravity and controlled seating make this the most demanding automotive crane duty.

3. Body-in-White and Welding

Handle fixtures, welding cells, robots, framing equipment and replacement tooling. Low headroom, crowded services and restricted robot zones often favor underhung, monorail or workstation arrangements.

4. Powertrain and E-Drive

Move engines, transmissions, motors, housings, machining fixtures and test equipment through defined stations. Smooth variable-speed motion, ergonomic controls and application-specific fixtures protect machined surfaces and assembly interfaces.

5. Battery and Paint Areas

Battery-pack assembly, cell production and paint operations have different cleanliness, fire and hazardous-area conditions. The approved environmental and area-classification documents—not the process name—determine enclosure, materials and explosion-protection requirements.

6. General Assembly and Maintenance

Support point-of-use lifting, conveyor work, fixture exchange, line-side replenishment and maintenance shutdowns. Coverage, approach, manual handling risk, parked-load location and unobstructed production flow shape the layout.

Bridge and Runway

Single- or double-girder, top-running or underhung architecture is selected from capacity, span, headroom, approach, building reactions, process coverage and required stiffness.

Hoisting Machinery

Wire-rope hoist or open-winch machinery is sized from gross load, lift, speeds, starts, load spectrum, precision, brake strategy and required production availability.

Die or Component Attachment

A die gripper, lifting beam, tong, C-hook, vacuum device, manipulator or certified hook rigging engages the declared load family and includes positive confirmation where the risk assessment requires it.

Motion and Positioning

Variable-frequency drives, controlled acceleration, creep speed, encoders, load-height feedback and anti-sway functions support stable travel and repeatable final approach.

Controls and Plant Interface

Pendant, radio, cabin or remote-control-room operation can integrate with press controls, WCS, MES, storage management, access gates and maintenance authorization.

Inspection and Recovery Access

Walkways, platforms, isolation stations, attachment stands, rescue provisions and component-removal paths are coordinated with production equipment before fabrication.

Load Family and Center of Gravity

Maximum and minimum mass, dimensions, lifting points, center-of-gravity range, surface restrictions and orientation are documented for every die, fixture, component and maintenance load.

Cycle and Availability

Die changes per shift, travel path, storage retrieval, press occupancy, average load, starts per hour, annual operating hours and recovery strategy determine mechanism duty and redundancy.

Placement and Approach

Required coordinates, allowable approach, final speed, die-cart interface, rack geometry, press centerline and permissible alignment error are specified as measurable acceptance values.

Building and Process Envelope

Runway elevation, roof, columns, presses, racks, robots, conveyors, utilities, access doors and neighboring cranes are checked in a coordinated three-dimensional clearance model.

Control and Data Scope

Manual, assisted or automatic operation; die identification; task source; station handshakes; protected areas; event records; cybersecurity and manual recovery are defined before controls are priced.

Environment and Maintenance

Press-shop vibration, lubricants, welding fumes, dust, heat, washdown, paint solvents, dry-room conditions and scheduled shutdown windows establish the protection and service concept.

Die Store Retrieval

The task identifies the die, rack position, mass, center of gravity, approved engagement points and destination. Rack clearances and pickup tolerance are incorporated into the attachment and positioning design.

Grip and Load Confirmation

Mechanical position, locking state, contact or pin engagement and load distribution can be monitored before hoisting. A confirmed signal does not override inspection of damaged or obstructed lifting points.

Protected Transfer

Position tracking, height limits, anti-sway, collision supervision and protected travel corridors control the movement between storage, inspection, maintenance and press-line stations.

Press Ready Handshake

The press, bolster, die cart, clamps, guards and access state must establish an approved transfer condition. The responsibility for each permissive is recorded in the interface matrix.

Precision Placement

Creep speed, load-height feedback, anti-sway and attachment adjustment support final alignment without using press equipment, racks or guides as uncontrolled mechanical stops.

Release and Traceability

Release is enabled only after support, position and station state are confirmed. Task completion records die identity, source, destination, time, alarms and any manual intervention.

Die Turning

Turning or inversion requires an engineered turning device, two-hook arrangement or dedicated station with defined load share and control sequence. Side pulling, dragging and improvised turnover are excluded.

Component Protection

Replaceable non-marking contact pads, controlled clamping force, soft motion profiles and approved support geometry protect machined surfaces, painted parts and precision fixtures.

Attachment Changeover

A multi-purpose crane requires a safe connection method, identified services, parking stands, retained capacity, changeover time and recovery procedure for an incomplete connection.

Gross Load and Net Capacity

Crane rated capacity must cover the heaviest die, mold, fixture or component plus the complete below-the-hook attachment and any suspended auxiliaries. The crane manufacturer accounts for the hook block and reeving within the machinery design. Eccentric centers of gravity and uneven load share are checked separately.

Duty from the Production Profile

ISO, FEM or CMAA classification is derived from operating hours, starts, load spectrum, travel, reversing and production consequences. A crane lifting the maximum die only occasionally can have a different duty from a lighter crane cycling continuously on an assembly line.

Accuracy and Repeatability

Positioning claims define measurement point, load, speed, axis, repeatability, environmental conditions and acceptance method. Structural deflection, rope stretch, sway, attachment compliance and rack or press tolerance all influence final placement.

Performance Data Required

• Maximum and minimum load with attachment
• Load dimensions, lifting points and center-of-gravity range
• Lifts per hour, shifts, annual hours and load spectrum
• Source, destination, travel distance and lift height
• Changeover time and required availability
• Final approach speed and placement tolerance
• Abnormal recovery and retained-load strategy

Task and Load Identity

WCS, MES, barcode, RFID or operator confirmation associates the physical die or component with mass, coordinates, process status and destination. Unidentified or conflicting loads enter a controlled exception state.

Position and Anti-Sway

Absolute or referenced coordinates, controlled acceleration, sway reduction, load-height feedback and final approach logic support stable movement without contact-based correction.

Press and Station Handshake

Ready, occupied, guarded, clamped, transfer enabled, release authorized, complete and fault states are exchanged with presses, die carts, racks, gates and maintenance systems.

Protected Areas and Collision Control

Restricted volumes, temporary maintenance zones, crane-to-crane separation, obstacle detection and speed-limited approaches are implemented under the approved risk assessment.

Operating Modes

Automatic, remote, local maintenance and recovery modes have defined authority, speed limits, permissives and transition conditions. Active mode and control ownership remain unambiguous.

Diagnostics and Recovery

Event logs, cycles, loads, sensor states and alarms support maintenance. Recovery covers incomplete gripping, lost position, unavailable destination, failed communications and power interruption.

Suspended-Load Exclusion

Pedestrian workstations, vehicle lanes and operator positions are kept outside the suspended-load path. Automatic operation uses controlled access and a defined safe state for zone entry.

Attachment Permissive

Hoisting and travel permissions can depend on verified engagement, load range and attachment configuration. Release remains inhibited until the load is supported and the destination is authorized.

Press and Robot Interlocks

Press motion, robot zones, die-cart travel, clamps, guards and crane movement are coordinated so that conflicting commands cannot create an uncontrolled exposure.

Overload, Limits and Brakes

Rated-capacity protection, normal and final motion limits, brakes, buffers, travel warnings and monitored speed zones are selected under the governing code and risk assessment.

Paint and Solvent Areas

Explosion-protected equipment is supplied only where the approved hazardous-area classification identifies zones, gas or vapor groups, temperature class and equipment protection requirements.

Battery Production Boundary

Cell manufacturing, module assembly and finished-pack handling can have different dry-room, cleanliness, chemical, dust and fire conditions. The site assessment determines the applicable crane package.

Existing Building Verification

Reuse requires verification of rails, runway beams, roof trusses or suspension points, brackets, columns, connections, foundations, fatigue history and measured condition. Maximum and minimum wheel reactions, lateral forces and buffer loads are issued for structural review.

Clearance and Production Coordination

Bridge, trolley, attachment and load envelopes are checked against presses, die racks, robots, conveyors, ducts, cable trays, lighting and fire systems. Installation is planned around production shutdowns and protected line areas.

Maintenance Strategy

Access platforms, safe parking, isolation, inspection positions, rope and brake service, attachment maintenance and component-removal routes are defined before procurement. Critical spare strategy reflects the production consequence of downtime.

Site Data Required

• Building, runway and production-layout drawings
• Rail or suspension-point survey and allowable reactions
• Press, rack, robot, conveyor and utility envelopes
• Attachment parking and maintenance access
• Power, grounding and communication networks
• Erection opening, laydown area and shutdown window
• Environmental and hazardous-area documents

Design Review

Confirm load cases, classification, general arrangement, runway reactions, attachment, die range, placement performance, safety functions, interfaces and maintenance access.

Factory Acceptance Test

Verify assemblies, drives, brakes, limits, load protection, attachment logic, safety functions, interface simulation, operating modes, diagnostics and contracted documentation.

Site and Production Acceptance

Test proof loads, representative dies, all source and destination stations, cycle time, placement, interlocks, restricted zones, communications loss and manual recovery.

Automated Mould Transfer for an Automotive Stamping Workshop

Henan Mine Crane reports delivering a customized automated mould-handling crane for a domestic automotive manufacturer. The published scope identifies automatic positioning, WCS management, area protection, obstacle avoidance, a multidirectional special spreader, anti-sway, servo positioning and three operating modes.

The published safety functions include laser anti-collision, light-curtain area protection, image monitoring and a 3D-vision digital-twin function. The record states that the project was developed for mould transfer in an automotive stamping workshop.

View Published Automotive Project →

Primary Price Drivers

Capacity, span and lift; duty class and speeds; die gripper or lifting device; two-hoist or turning requirement; positioning and anti-sway; automatic controls; WCS, MES and press interfaces; safety zoning; building steel; documentation and local compliance.

Commercial Scope to Reconcile

Runway rails and steelwork; structural reinforcement; freight, insurance, duties and taxes; erection; electrification; commissioning; test loads; representative dies; line-interface testing; training; spares; warranty and production acceptance.

Technical Proposal

Design basis, crane arrangement, capacities, classification, speeds, attachment, load assumptions, precision, protection package, operating modes and stated deviations.

Interface Schedule

Runway reactions, power, communications, press and station I/O, coordinates, safety ownership, erection needs, civil boundaries and third-party responsibilities.

Attachment Documentation

Rated range, deadweight, dimensions, engagement, locking logic, proof test, inspection limits, wear parts, attachment stand and representative-load acceptance plan.

Safety and Controls

Risk-assessment inputs, safety-function list, restricted zones, interlock matrix, network behavior, isolation, emergency states, recovery and required conformity records.

Quality and O&M Records

Inspection and test plan, material and welding records as specified, coating reports, component certificates, manuals, lubrication plan, training and critical spares.

Commercial Schedule

Price, Incoterm, milestones, packing, freight boundary, installation, commissioning, training, acceptance, warranty, exclusions, validity and optional lifecycle services.

Load and Attachment Data

Load families; minimum and maximum mass; dimensions; center of gravity; lifting points; orientation; surface restrictions; photographs or drawings; proposed gripper, beam, tong, C-hook, vacuum device or rigging.

Process and Duty Data

Source and destination stations; changeover sequence; lifts per hour; shifts; annual hours; load spectrum; travel distance; target cycle; placement tolerance; availability and contingency.

Site and Environment Data

Span, lift, runway length, building and process drawings, allowable reactions, press and rack interfaces, temperature, dust, welding, paint, clean or dry-room requirements, power and destination.

Controls and Commercial Data

Operating modes; WCS, MES and PLC protocols; task and die identity; safety zones; governing standards; Incoterm; freight, installation, commissioning, test and documentation boundaries.

Which crane is used in an automotive press shop?

A process-duty double-girder overhead crane is commonly selected for heavy die storage and changeover. A dedicated die gripper, anti-sway, precision motion and press-line interfaces may be added when cycle frequency and automation justify them.

Is one crane suitable for the entire automotive plant?

Usually not. Press dies, body fixtures, powertrain components, assembly tasks and maintenance loads differ in mass, frequency, precision and environment. A plant-wide lifting plan assigns a suitable crane class to each zone.

How is die-handling crane capacity determined?

Capacity covers the heaviest die plus the complete gripper, beam or other below-the-hook device. Center of gravity, load share, acceleration, turning requirements and governing code are then applied.

Can the crane retrieve dies automatically?

Yes. Automatic retrieval can combine a die database, WCS tasks, position tracking, a dedicated gripper, anti-sway, protected zones and press handshakes. Safe exception handling and manual recovery remain mandatory design elements.

Does an automotive crane need millimetre-level positioning?

Only where the actual station and attachment require it. The purchase specification defines the measurement point, load, speed, repeatability and acceptance method rather than using an unsupported general accuracy claim.

Are explosion-proof cranes required in paint shops?

Only when the approved hazardous-area classification establishes the relevant zone and protection requirements. Solvent use or a paint-shop label alone does not determine the final crane certification.

How much does an automotive industry crane cost?

Public figures range from crane-only estimates and component kits to complete support systems. A defensible project price requires capacity, span, duty, attachment, automation, plant interfaces, building scope, destination and acceptance criteria.

Can an existing runway be reused?

Only after geometry, condition, fatigue history, rails, beams, columns, connections and foundations are verified against the proposed vertical, lateral, longitudinal and buffer reactions.

PRIMARY SYSTEM

Assembly Line Bridge Cranes

CAPACITY RANGE

0.5 t – 50 t

TYPICAL SPAN

7.5 m – 35 m

CONTROL OPTIONS

Pendant, Radio, PLC & Anti-Sway

Press and Stamping Shop

Double girder cranes change and transfer press dies, handle coil and blank feeding equipment and support press maintenance. Die handling is slow, precise, high-value lifting where hook approach, exact load control and reliability matter more than speed.

Body-in-White Shop

Cranes install and exchange welding fixtures, position body panels and subframe assemblies, and serve framing stations. Coverage must work around robots and conveyor steel, and every lift position has to repeat within the fixture tolerances of the station.

Powertrain Machining and Assembly

Engines, transmissions, cylinder heads and crankshafts are handled between machining cells, washing and test stations. These areas combine moderate loads with high cycle counts and demand controlled, gentle set-down on machined surfaces.

Final Assembly Line-Side Supply

Suspended and workstation crane systems feed seats, doors, batteries, fuel tanks, dashboards and powertrain units to the stations that install them. Low headroom, ergonomic effort levels and reach into the station without intruding on the line are the defining requirements.

Paint Shop and Utilities

Cranes maintain dipping, drying and treatment equipment, handle skids and carriers, and support the process tanks and ovens that run continuously. Environment class, enclosure protection and maintenance access drive the specification in this area.

Maintenance and End-of-Line Operations

Workshop and workstation cranes support equipment repair, test bays, wheel and headlamp alignment areas and general logistics. These cranes lift infrequently but must be available on demand, since downtime in a running plant is measured in lost vehicles per hour.

For most line-side and machining loads up to 20 t, a single girder crane with an electric hoist is the most economical configuration and covers the majority of assembly applications. European-style single girder cranes raise this baseline with FEM-oriented duty design, lower dead weight, better hook approach and smoother travel — the standard choice where high cycle counts, close tolerances or restricted building capacity apply.

Where loads grow — press dies, skid systems, powertrain modules, complete fixtures and maintenance of heavy process equipment — double girder cranes take over, adding hook height, stiff long-travel behaviour and heavy-duty hoisting machinery. Double trolley versions handle long and flexible parts such as shafts, axles, rail segments and long weldments that would overload a single hook point or distort during lifting.

Suspended underhung systems bolt to the building roof steel instead of running on elevated runway rails, so they reach into stations at low headroom with minimal steelwork. Multi-point suspension designs cover wide or irregular bays. Intelligent hoist cranes close the loop with controlled positioning, anti-sway and operator guidance for the highest-accuracy stations.

01 · Load Spectrum per Station

List every load at every lifting point with its fixture, spreader or tooling weight. The heaviest combination at the busiest station — not the average — sets the rated capacity for the whole system.

02 · Takt Time and Cycle Profile

Convert line takt into lifts per hour, travel distances and full-load ratio per station. These numbers set the ISO duty class of hoist, trolley and travel mechanisms — the difference between a line-speed crane and an early failure.

03 · Positioning Accuracy and Anti-Sway

Define the positioning tolerance at each station and the acceptable residual sway at set-down. These requirements select between standard speed control, frequency inverter control with crawl steps, and closed-loop anti-sway positioning.

04 · Headroom and Building Interface

Confirm clear height, roof steel capacity, existing conveyor and utility positions, and the clearance the process needs below the hook. Low buildings push the specification towards top-running, double girder or suspended configurations.

05 · Environment and Cleanliness Class

Paint shops, clean zones and battery areas impose dust, temperature and contamination limits on motors, brakes and controls. The enclosure and protection class is specified per area, not per building.

06 · Control and Line Integration

Define interlocks with conveyors, robots, skid systems and safety circuits, the control positions operators will use, and any interface to plant PLC or monitoring systems. Integration scope changes the electrical boundary of the offer.

07 · Ergonomics at the Station

Where operators handle loads manually, specify the permissible operating force, the reach envelope into the station and the precision of inching control. Ergonomic limits are production limits on an assembly line.

08 · Project Boundary and Compliance

Assign runway or suspension steel, conductor systems, installation, commissioning, load testing, spares and certification in writing before comparing offers, and state the standards the documentation must satisfy for the plant’s market.

Wheel Loads and Rail Seats

Maximum and static wheel loads, with and without load, are verified against the runway beams and building columns. A crane change on an existing runway always starts with this check, not with the catalogue.

Suspended Loads on Roof Steel

Underhung and multi-point suspension systems hang from the building structure. The roof steel capacity, bracing positions and allowable deflection decide whether suspension is viable and how the load paths are arranged.

Clearance to Conveyors and Automation

Hook coverage is mapped against conveyors, skid tracks, robot cells and process tanks. The crane must reach the defined pick-up and set-down points without entering protected volumes or intruding on safety zones.

Power Feed and Conductor Systems

Conductor bars or festoon systems are routed along the runway with isolation, earthing and maintenance positions defined. Power feed placement affects plant electrical layout and must be fixed early in the project.

Pendant and Radio Control

Pendant control keeps the operator at a fixed position beside the load; radio remote frees them to watch the load and the station. On assembly stations, radio control is usually the more productive and safer choice.

Frequency Inverter Travel and Hoist

Stepless speed control with defined acceleration and crawl steps lets the operator place loads without shock. On machined powertrain components, controlled set-down is a quality requirement, not a comfort feature.

Anti-Sway and Positioning Control

Closed-loop anti-sway and target positioning reduce swing, shorten waiting at the station and protect fixtures and parts. Encoder feedback and slow-approach zones place the hook within repeatable tolerances cycle after cycle.

Interlocks and Plant Systems

Where cranes share space with conveyors, robots or skid systems, interlocks, zone limits and signal exchange with the plant controller are engineered into the crane control. The interface scope belongs in the contract, not in site improvisation.

The Default Duty Trap

Many general-purpose offers are built to infrequent-use classifications. On a station cycling every takt, those mechanisms consume their design life early. Duty class must be specified from the measured cycle profile, never left to the supplier default.

Fatigue and Structural Allowance

High-cycle welding details, wheel and rail contact and brake engagement counts are fatigue items. The structure is engineered for the number of cycles the line will actually run, not for a nominal tonnage figure.

Maintenance-Friendly Design

Wear parts, brakes and limit systems are arranged for fast access inside short production breaks. Maintenance positions and inspection routes are defined at design stage, because unplanned line stops cost vehicles, not minutes.

Documentation and Testing

Structural calculations, test certificates, overload and static load test reports and defined acceptance criteria support commissioning and the plant’s own safety and audit systems. Documentation scope is agreed before production starts.

An automotive assembly crane project typically covers several crane families at once: standard and European-style single girder cranes for line-side and machining areas, double girder cranes for the press shop and powertrain, and suspended systems feeding the final assembly stations. Henan Mine Crane plans such projects around a common engineering baseline, so that control behaviour, spares and documentation stay consistent across the different areas of the plant.

A complete supply definition states the crane structure and machinery, the hoist and control system, the runway or suspension interface, conductor systems, the safety functions required at each station, the overload and acceptance testing regime, and the delivery, installation and commissioning responsibilities. Where the plant’s own engineering team installs, supervision, commissioning and load testing remain part of the package.

Standard configurations are typically delivered within 30 to 45 days after drawing approval, with engineered or automation-equipped cranes on confirmed project schedules. Multi-crane programs are sequenced against the plant’s shutdown and ramp-up calendar.

ASSEMBLY CAPACITY COVERAGE

0.5 t – 50 t

CRANE FAMILIES APPLIED

6 Product Platforms

STANDARD DELIVERY

30 – 45 Days

ENGINEERED DUTY RANGE

A3 – A6 Assembly Service

Load and Station Data

Part weights with fixtures and tooling at every lifting point, heaviest combination, lift frequency per station and the full production shift pattern.

Building and Geometry Data

Clear height, span or rail centers, travel lengths, roof steel or runway capacity, conveyor and automation positions, and the hook coverage each station requires.

Process and Accuracy Data

Positioning tolerance at set-down, acceptable residual sway, required speeds and inching behaviour, and any interlocks with conveyors, robots or plant systems.

Commercial and Site Data

Voltage and frequency, destination and Incoterm, installation responsibility, required certifications and documentation, spares level and requested delivery schedule.

What crane does an automotive assembly plant use?

Assembly plants use a combination of systems: single and European-style single girder bridge cranes for line-side and machining areas, double girder cranes for press shops and powertrain handling, double trolley cranes for long parts, and suspended workstation systems for ergonomic part supply at stations.

How is an assembly crane different from a standard workshop crane?

The difference is duty and control, not just tonnage. Assembly cranes are classified for high cycle counts tied to takt time, use stepless speed control with crawl and anti-sway behaviour for repeatable positioning, and integrate with conveyors, robots and plant safety systems.

Single or double girder for an assembly line?

Most line-side loads up to 20 t are served by single girder cranes at lower cost. Double girder becomes the right choice for loads above 20 t, for maximum hook height under the roof, or for stiff, precise handling of press dies, skids and powertrain modules.

How much does an automotive assembly crane cost?

Current market positions place single girder assembly cranes between roughly US$2,900 and 22,000 on an equipment basis, European-style single girder systems between US$13,000 and 49,000, and double girder assemblies from about US$10,000 for lighter units to US$80,000 for press shop die handling. Freight, duty and installation typically add 20–50 % over the equipment price.

Can the crane work with conveyors and robots in the same bay?

Yes, when it is engineered that way. Hook coverage is mapped against conveyor and robot positions, zone limits and interlocks are built into the crane control, and signal exchange with the plant controller is defined in the interface specification before manufacture.

What is the delivery time?

Standard configurations are typically delivered within 30 to 45 days after drawing approval. Cranes with anti-sway positioning, line integration or multi-crane program sequencing run on confirmed project schedules agreed before production starts.

APPLICATION

High-Bay AS/RS Warehouses

STRUCTURES

Single or Double Column

LOAD TRANSFER

Project-Selected Fork System

SYSTEM INTERFACES

WMS · WCS · PLC · Conveyor

Pallet High-Bay Storage

Automated inbound, storage, relocation and outbound handling for standardized pallets in high-density rack systems.

Tote and Container Storage

Lightweight configurations for totes, bins, containers and smaller load units requiring compact aisle geometry and frequent cycles.

Production Buffer Warehouses

Controlled storage between manufacturing processes, with task exchange between production planning, conveyors and warehouse control.

Special Load-Carrier Systems

Project-specific forks, supports, sensors and transfer logic for non-standard carriers, containers or process fixtures.

01 / LOAD UNIT

Carrier and Payload Definition

Load-unit dimensions, weight range, centre of gravity, underside geometry, stability and allowable overhang establish the transfer interface.

02 / RACK AND AISLE

Storage Geometry and Tolerances

Rack elevations, aisle length, transfer clearances, rail alignment, guide tolerances and maintenance access determine the machine envelope.

03 / THROUGHPUT

Cycle Model and Peak Demand

Single-cycle, dual-cycle and peak task profiles establish motion performance, machine quantity, buffering and availability requirements.

04 / TRANSFER

Fork Depth and Handover

Single-depth, double-depth and special transfer arrangements require different fork stroke, detection, support and cycle-time calculations.

05 / CONTROLS

Automation Responsibility

The interface schedule assigns WMS, WCS, PLC, network, identification, conveyor, cybersecurity and acceptance-testing responsibilities.

06 / LIFECYCLE

Availability and Recovery

Maintenance access, diagnostic depth, spare parts, recovery procedures and redundancy are aligned with the required system availability.

STEP 01

Task Release

The warehouse system releases a validated storage, retrieval or relocation task with the required load and destination data.

STEP 02

Load Handover

Conveyor and stacker-crane controls confirm load identity, position, readiness and transfer permission before movement begins.

STEP 03

Coordinated Travel

Long travel and lifting are coordinated to approach the assigned rack location while controlling structural response and settling time.

STEP 04

Protected Transfer

Position and occupancy conditions are checked before the fork extends, transfers the load and returns to its travel position.

STEP 05

Status Confirmation

Completion, location and equipment status are returned to the control hierarchy for inventory records and the next task assignment.

Single-Column and Double-Column Designs

Single-column construction can reduce moving mass and support compact aisle arrangements when payload, storage height and dynamic behaviour permit. Double-column construction provides a framed carriage guidance arrangement for applications requiring greater stiffness, heavier load handling or demanding operating cycles.

The final structure is selected through load analysis, aisle geometry, dynamic response, positioning requirements, drive duty and maintainability. Lightweight box-type structural members may be applied where mass reduction and rigidity must be balanced.

Fixed-Aisle, Track-Switching and Turnout Arrangements

A fixed-aisle stacker crane provides dedicated access and predictable capacity within one aisle. Track-switching and turnout arrangements allow a compatible machine to serve more than one aisle when the throughput calculation, route availability and recovery strategy support shared equipment.

Multi-aisle operation requires coordinated route control, transfer-position interlocks and a capacity assessment covering both normal production and planned maintenance conditions.

The load-handling device is specified from the carrier underside, storage depth, support arrangement, permitted clearances and transfer direction. Single-depth, double-depth and special telescopic solutions require different fork strokes, deflection control, detection logic and cycle calculations.

• ✓Transfer authorization based on machine position, fork status and interface readiness
• ✓Fork anti-push-off protection for controlled handling at the rack location
• ✓Load-presence and storage-position conditions integrated into the project control logic
• ✓Protected transition between storage racks, stacker crane and conveyor handover stations

Space Utilization and Energy Management

A rigid-flexible column concept and compact equipment envelope can support high-density storage where the structural calculation, rack geometry and service clearances permit. The layout is coordinated with the aisle rail, top guidance, maintenance access, buffer conveyors and fire-protection strategy.

An optional energy-feedback module can return regenerative energy produced during lowering and deceleration to the electrical system. Its application is assessed against motion frequency, load profile, electrical architecture and project energy objectives.

Motion Interlocks

Travel, lifting and fork movements are permitted only when the defined machine and interface conditions are satisfied.

Transfer Protection

Position, load and handover signals are evaluated before rack or conveyor transfer, with fork anti-push-off protection integrated into the sequence.

Access Control

Fenced zones, access points and maintenance procedures are coordinated with the warehouse layout and applicable project requirements.

Fault Recovery

Alarm classification, safe reset conditions, manual recovery steps and responsibility boundaries are documented for service personnel.

Project Engineering

Layout review, equipment boundary, performance calculation, interface schedule, structural verification and maintainability assessment.

Manufacturing Control

Fabrication, assembly, drive installation, electrical integration and inspection are managed against the approved project specification.

Technical Deliverables

Agreed drawings, parameter schedules, interface records, operating information, maintenance documentation and acceptance records.

01. Interface Readiness

Rail, rack, power, network, conveyor, identification and access conditions are checked against approved interface data.

02. Mechanical and Electrical Setup

Machine alignment, guidance, drives, sensors, control panels and communication links are installed and verified.

03. Functional Commissioning

Operating modes, motion, positioning, fork transfer, interlocks, alarms and system handshakes are commissioned in stages.

04. Performance Acceptance

The agreed test plan verifies functions, interfaces, representative load handling, throughput conditions and recovery procedures.

Inspection Planning

Scheduled checks aligned with duty, environment, critical assemblies and operating records.

Diagnostics

Alarm history, status information and defined troubleshooting paths support structured fault isolation.

Spare Parts

Recommended commissioning, operational and critical spares can be defined from the service strategy.

Training

Operating, maintenance and recovery training can be included within the agreed delivery scope.

Load and Carrier Data

Dimensions, maximum and typical weight, centre of gravity, underside arrangement, stability, overhang and identification method.

Rack and Building Layout

Storage height, aisle length and width, rack levels, storage depth, rail path, top guidance, transfer stations and service zones.

Throughput Model

Inbound and outbound rates, single and dual cycles, peak duration, task distribution, working hours and availability target.

System Interfaces

WMS/WCS architecture, PLC and network requirements, conveyor handshakes, barcode or RFID, data ownership and cybersecurity conditions.

Site Conditions

Installation location, temperature, humidity, dust, electrical supply, fire strategy, access restrictions and applicable regulations.

Delivery Boundary

Equipment, rails, controls, software, conveyors, installation, commissioning, testing, training, documentation and spare-parts scope.

What is an automated warehouse stacker crane?

It is a rail-guided storage and retrieval machine that travels within a warehouse aisle, lifts a carriage to rack level and transfers unit loads between storage locations and material-flow interfaces under automatic control.

When is a single-column design appropriate?

Single-column construction may be selected when the payload, storage height, stiffness, motion profile and service-access requirements support a lighter and more compact structure. Engineering verification determines its suitability.

Can one stacker crane serve multiple aisles?

Track-switching or turnout configurations can serve compatible aisle paths. The decision requires verification of transfer time, route availability, peak throughput, recovery access and capacity during maintenance.

Does the stacker crane connect with an existing WMS or WCS?

Integration can be developed around an existing warehouse software environment when protocols, task ownership, data fields, alarm handling, network conditions and testing responsibilities are defined in the interface schedule.

How is stacker-crane throughput determined?

Throughput is calculated from aisle geometry, storage-location distribution, transfer time, travel and lift motion, fork cycle, buffering, single and dual cycles, peak demand and equipment availability. Maximum travel speed alone does not define system capacity.

Which load data are essential for fork selection?

Required data include carrier dimensions, payload range, underside geometry, support positions, centre of gravity, stability, overhang, storage depth, permitted clearance and transfer direction.

Can energy recovery be included?

An optional energy-feedback module can recover regenerative energy during lowering and deceleration. Feasibility depends on the motion profile, operating frequency, load distribution and facility electrical system.

What determines the final stacker-crane price?

Major cost drivers include payload, storage height, aisle length, machine quantity, structural configuration, fork depth, performance, control scope, software interfaces, site conditions, installation, testing, training and spare-parts requirements.

EQUIPMENT FAMILY

PTM / Pot Tending Crane

PRIMARY APPLICATION

Prebaked-Anode Potlines

FUNCTION PACKAGE

Selected by Pot Process

PRICE BASIS

Engineered Project Quote

Process Machine

The PTM performs repeatable pot operations; it is not only a lifting bridge with a hook.

Multi-Tool Platform

Each mechanism has its own load, reach, motion, duty, accuracy and process interface.

Potline-Specific Design

Bridge geometry, tool envelope and control logic follow the actual cell technology and bay layout.

Harsh-Duty Protection

Electrical, thermal, dust, fume and magnetic-field conditions are part of the design basis.

01 / POT TECHNOLOGY

Cell Geometry and Pitch

Define cell type, centerline pitch, hood arrangement, anode layout, access side, working zones and no-go envelopes.

02 / ANODE SYSTEM

Anode and Clamp Data

Record new and spent anode mass, dimensions, stem arrangement, clamp interface, extraction stroke and placement tolerance.

03 / REQUIRED TOOLS

Process Function Schedule

List crust breaking, feeding, anode changing, bath cleaning, tapping, busbar work, cover handling and maintenance functions.

04 / PRODUCTION

Cycle and Availability

State pots served, shifts, planned tool cycles, peak demand, standby philosophy, recovery time and maintenance windows.

05 / POTROOM

Runway and Clearances

Verify rail span, elevation, approaches, wheel-load limits, longitudinal geometry, building deflection and erection route.

06 / ENVIRONMENT

Heat, Dust, Fumes and Field

Supply measured ambient and radiant heat, magnetic-field map, conductive dust, fluoride fume and ventilation conditions.

07 / CONTROL

Manual, Assisted or Automated

Define cabin, remote station, tool interlocks, pot identification, positioning, data exchange and automatic sequence boundaries.

08 / SUPPLY SCOPE

Interfaces and Acceptance

Fix the limits for runway, power, compressed air, fume extraction, installation, testing, training, spares and documentation.

Crust Breaking and Working-Hole Opening

A guided breaker opens the electrolyte crust at defined positions. Tool reach, impact requirement, alignment and debris control follow crust condition and cell geometry.

Anode Changing

The anode mechanism releases the clamp interface, extracts the spent assembly, handles the replacement anode and positions it at the designated location. Mass, stem form, center of gravity and placement tolerance are essential inputs.

Bath and Residue Removal

A cleaning or grab tool can remove crust pieces, residual material and selected bath deposits from the working area before placement of the new anode.

Alumina and Cover-Material Feeding

A metered feeding arrangement distributes alumina, fluoride additions or cover material where specified. Storage volume, discharge rate, dust containment and refill interface form part of the procurement data.

Aluminum Tapping Support

The PTM can carry or position a tapping trolley, pipe or ladle interface. Vacuum generation, weighing and ladle transport boundaries must be clearly allocated between crane and plant systems.

Busbar and Pot Maintenance

An insulated auxiliary hoist or dedicated frame may support approved busbar-related work, hood handling, pot superstructure service and controlled maintenance lifts.

Auxiliary Handling

A general auxiliary hoist can handle approved tools, maintenance parts and consumables within the defined capacity, isolation and exclusion-zone rules.

Bridge and Traveling System

The bridge distributes tool and trolley loads to the potroom runway while providing the required approaches above the cell row. Wheel arrangement, drives, braking and structural stiffness follow the operating spectrum, rail geometry and positioning requirement.

Tool Trolley and Rotation

A traversing tool trolley positions the working mechanisms across the cell. A rotating carriage or turret can orient tools to the operating face. Interlocks prevent incompatible motions, tool collision and operation outside approved envelopes.

PLC, Drives and Positioning

Variable-frequency drives and PLC control can coordinate bridge, trolley, rotation and tool motions. Pot identification, travel-position feedback, tool-height measurement, load monitoring and sequence permissions can be integrated at the automation level specified for the project.

Operator Environment

The cabin location, visibility, filtration, cooling, heat shielding, fume protection and emergency egress are developed from the potroom hazard assessment. Remote or assisted operation can reduce routine exposure while retaining controlled recovery procedures.

Electrical Isolation

Insulation points, creepage distances, monitoring and maintenance-access rules are selected from the plant electrical design and the maximum credible potential difference. Isolation must cover the complete current path, including tools, hoists, structures and service connections.

Heat and Fume Resistance

Heat shields, component location, cooling, material selection and cable protection reduce exposure to hot cell surfaces and radiant heat. Corrosion-resistant finishes, sealed enclosures and protected ventilation address fluoride-bearing fumes.

Dust and Magnetic-Field Compatibility

Alumina and carbon dust affect cooling, contacts, sensors and mechanical interfaces. Enclosure rating, filters and cleaning access follow the measured load. Electrical and control components are selected and positioned for the documented magnetic field.

Safe-Failure Response

Overload protection, limits, braking, anti-collision, motion interlocks, emergency stops and recovery modes are defined by the project risk assessment. Redundancy is applied where the consequence and governing design basis require it.

Integrated Aluminum Production Lifting Program

A published Henan Mine Crane aluminum-industry program combines three equipment groups: multifunction suction handling equipment, anode carbon block stacking cranes and multifunction aluminum electrolysis units. The program addresses raw-material movement, carbon-block storage and reduction-cell operations as separate but connected process zones.

The electrolysis unit integrates shell breaking, anode replacement, residue cleaning and cover-material loading. Sensor-based height measurement, tightening control and automatic operating functions can be applied according to the selected automation scope.

View Aluminum Industry Project

Electrolytic Aluminum Crane Configuration

Henan Mine Crane also publishes an electrolytic-aluminum equipment family for high-duty aluminum liquid transfer, anode handling, cell maintenance and plant material movement. The configuration demonstrates the need to match working class, protection, attachment and control method to the exact process rather than specifying a general metallurgical crane.

View Electrolytic Aluminum Solution

Design Basis

The contract design basis identifies the governing crane, machinery, electrical and structural requirements. Applicable codes may include EN, ISO, IEC, FEM, CMAA or project-specific national standards, but the agreed hierarchy and editions must be fixed before detailed design.

Engineering Review

Deliverables can include general arrangement drawings, wheel loads, structural calculations, mechanism selection, tool envelopes, electrical single-line diagrams, PLC architecture, cause-and-effect logic, interlock matrix and utility requirements.

Fabrication and Inspection

Material traceability, welding procedures, dimensional checks, nondestructive examination, machining records, assembly inspection, coating controls and purchased-component certificates can be included in the approved inspection and test plan.

Factory Acceptance

Factory testing verifies drive direction, brakes, limits, alarms, interlocks, control modes, tool motions and communications to the extent possible before shipment. Site process interfaces are completed during commissioning with approved simulation and live-operation procedures.

Site Readiness

Confirm runway survey, rail condition, erection access, lifting plan, utilities, laydown area, shutdown windows and potroom work permits before delivery.

Mechanical and Electrical Installation

Bridge assembly, rail alignment, festoon or conductor installation, tool commissioning and plant-network integration follow approved method statements.

Functional and Process Testing

Testing progresses from no-load motion and interlocks to proof testing, dry process simulation and controlled potline trials under the agreed acceptance plan.

Training and Handover

Operator, electrical, mechanical and automation training should cover normal operation, tool change, alarm response, isolation, recovery and preventive maintenance.

Machine and Tool Package

Bridge size, tool trolley, anode equipment, breaker, cleaner, feeder, tapping arrangement, hoists, hydraulics and pneumatics.

Controls and Protection

PLC, drives, positioning, plant communications, operator cabin, remote operation, insulation, cooling, enclosures and fume protection.

Project Delivery

Documentation, testing, packaging, ocean freight, insurance, runway or power scope, installation, commissioning, training and spares.

Is a pot tending machine the same as an overhead crane?

It uses an overhead traveling bridge, but it is a process machine with dedicated tools, controls and protections. A conventional hook crane cannot perform the full pot-tending sequence without extensive purpose-specific engineering.

Which operations can be integrated?

Typical options include crust breaking, anode changing, residue removal, alumina or cover-material feeding, tapping support, busbar-related lifting and maintenance handling. The approved operating procedure determines the final combination.

What capacity should be specified?

Each mechanism requires a separate capacity or performance value. Anode-tool load, auxiliary-hoist SWL, tapping load, breaker energy and feed volume cannot be represented accurately by one headline tonnage.

Can the PTM be automated?

Manual, assisted and higher-automation configurations are possible. Automation can include pot identification, position control, height measurement, tool permissions, sequence control, production data exchange and fleet scheduling where the plant interfaces support them.

How is electrical safety addressed near energized cells?

The electrical study defines credible current paths and required insulation points. Tool interfaces, hoists, structural sections, service connections, earthing, monitoring and maintenance procedures are coordinated as one isolation system.

How are fluoride fumes and conductive dust managed?

Protection can include sealed electrical enclosures, selected materials and coatings, filtered ventilation, cooling, protected cables, serviceable dust barriers and interfaces to plant fume-extraction systems.

Can an existing potroom runway be retained?

Retention is possible only after verifying rail geometry, alignment, support condition, wheel-load capacity, longitudinal forces, clearances and erection access against the proposed machine.

What determines the number of PTMs required?

Pot count, travel distance, process cycles, peak workload, tool-change time, preventive maintenance, availability target and standby philosophy determine fleet size. A cycle and availability model should support the decision.

Why is a public online price not a reliable project budget?

Advertisements rarely define tool count, process performance, duty, automation, environmental protection, runway scope, testing, delivery or commissioning. Two listings with the same nominal tonnage can represent fundamentally different machines.

What should be included in the final acceptance plan?

The plan should cover documentation, dimensional inspection, material and welding records, no-load and load tests, limits, brakes, interlocks, tool simulations, communication tests, site process trials, training and handover criteria.

Anode Carbon Block Stacking Crane

Automated or operator-controlled handling of green, baked or prepared anode carbon blocks in storage and transfer areas.

Insulated Bridge Crane

Purpose-designed electrical isolation for approved lifting duties in high-current industrial environments.

Double-Trolley Insulated Overhead Crane

Two insulated trolley mechanisms for coordinated handling where load geometry and process access require separate lifting points.

Double-Girder Casting Crane

High-duty metallurgical crane platform for project-defined molten-metal ladle transfer and controlled handling.

Intelligent Grab Double-Girder Crane

Bulk-material handling with a project-selected grab, positioning and automated operating functions.

Double-Girder Bridge Crane

General heavy-duty lifting for maintenance bays, component handling and non-process plant operations.