Product Introduction of Henan Mine Crane Factory Specialized Bridge Cranes for Hot-Rolled Steel Mills
As the core material handling equipment for hot-rolling production lines in the steel industry, Henan Mine Crane’s specialized bridge cranes for hot-rolled steel mills are custom-engineered for extreme operating conditions: high-temperature radiation exceeding 1200°C, heavy-duty tonnage loads, and 24/7 continuous operation.
Leveraging a production line featuring over 600 intelligent welding and machining robots, the equipment integrates core technologies including finite element analysis-optimized design, high-temperature protection reinforcement, and intelligent precision control. This addresses the fundamental challenges of traditional cranes in hot rolling workshops—such as deformation, frequent failures, short service life, and poor safety—providing critical support for steel enterprises’ intelligent and green transformation.
Henan Mine Crane Hot-Rolled Steel Plant Specialized Bridge Crane
Core Technical Advantages
- Extreme High-Temperature Design for Harsh Environments
The main beam utilizes Q690 high-strength low-alloy structural steel (yield strength ≥690MPa) combined with ceramic fiber insulation coating, directly withstanding 1200°C radiant heat while maintaining beam body temperatures below 60°C. This reduces deformation by 40% compared to industry standards. The electrical control system features high-temperature sealed design, with critical components selected from specialized models rated ≥125°C. Equipped with forced cooling modules, it completely prevents circuit short-circuits and component failures in high-temperature environments. - Heavy-Load Fatigue Resistance for Continuous Operation
Designed for A6 heavy-duty duty cycle, with rated lifting capacities ranging from 50-200 tons, it meets the 24/7 continuous heavy-load operation demands of hot rolling mills. The main girder employs a box-type welded structure. Optimized through robotic internal welding processes and finite element analysis, it simulates extreme conditions like heavy and unbalanced loads to ensure uniform load distribution. Fatigue strength is 20% higher than traditional processes. The machine’s Mean Time Between Failures (MTBF) exceeds 8,000 hours, far surpassing industry averages and significantly reducing downtime losses. - Intelligent Precision Control for Enhanced Efficiency
Equipped with high-precision absolute encoders and variable frequency speed control systems, the main hook achieves lifting speeds of 3.5–4.65 m/min, while the trolley operates at 64.9–66.7 m/min. Positioning accuracy is maintained within ±5 mm, meeting the precision demands of billet transfer and finished product stacking. Features an independently developed intelligent anti-sway system achieving ±3mm sway control under 100t full-load conditions, eliminating safety hazards caused by material sway in high-temperature environments. Seamless integration with enterprise MES enables automatic task reception and real-time operational monitoring, boosting efficiency by over 25% compared to conventional models. - Comprehensive Safety Protection, Eliminating Production Risks
Integrates multiple safety systems, including nine core protections: overload protection, hoist limit switches, trolley buffer limit switches, and emergency braking. The intelligent sensing system continuously monitors the work area, accurately identifying personnel and obstacles to trigger automatic stops and alarms, linking with on-site security systems. The hoisting mechanism and electrical control system feature dual redundancy design with dual backup for critical components, meeting the mandatory dual-braking safety standard of EN 13001. - Customized Adaptation for Comprehensive Scenario Coverage
Span customizable from 13 to 35 meters, with a maximum lifting height of 26 meters for both main and auxiliary hooks, precisely matching layout requirements of hot rolling mills of varying scales. For specialized scenarios like integrated “continuous casting-hot rolling” processes or compact workshop spaces, 3D modeling enables optimized design adjustments to lifting speed, travel paths, and equipment structure, ensuring seamless integration with existing production flows. Modular design reduces non-standard product delivery cycles by 30%, approximately 15 days faster than industry averages.
Henan Mine Crane Hot-Rolled Steel Plant Specialized Bridge Crane
Application Scenarios
Specifically engineered for the entire hot-rolling mill process, it is widely used in critical operations such as billet loading, intermediate slab transfer, and finished steel lifting and storage. It operates reliably in environments ranging from -25°C to 40°C and withstands long-term exposure to 1200°C high-temperature radiation. Capable of handling diverse materials including iron ore and steel billets, it serves as core equipment supporting intelligent and efficient production in steel enterprises.
Henan Mine Crane Hot-Rolled Steel Plant Specialized Bridge Crane
Benchmark Case Endorsement
In Baowu Group’s Shaogang Rotary Kiln Project, the custom-developed specialized bridge crane provided core support for the system’s “one-button steelmaking” capability. Operating continuously at 1200°C, the equipment maintained stable performance with less than one monthly failure, earning high recognition from both operational and management levels.
Henan Mine Crane Hot-Rolled Steel Plant Specialized Bridge Crane
Leveraging exceptional operational adaptability and reliability, the equipment has been successfully deployed in major domestic and international projects including Baowu Group’s Shaogang Rotary Kiln Project, Panhua Group’s Intelligent Hot Rolling Workshop, and Vietnam’s Yishan Steel Hot Rolling Line. It has become the preferred partner equipment for large steel enterprises such as Shagang and Hebei Iron & Steel. In 2018, it was selected as Baosteel Zhanjiang’s Premium Supplier and consistently provides annual spare parts cooperation services to leading steel enterprises.
Henan Mine Crane Hot-Rolled Steel Plant Specialized Bridge Crane
Henan Mine Crane Hot-Rolled Steel Plant Specialized Bridge Crane