Gantry crane is a gantry structure by the main girder and legs constitute the ground lifting equipment, for heavy lifting and moving, widely used in industrial production and logistics handling.

Many people will confuse the gantry crane and bridge crane, the core difference between the two is very clear: the bridge crane depends on the plant load-bearing structure installation, while the gantry crane with legs to the ground, without relying on the top of the plant, more flexible.

This unique structure allows the gantry crane to adapt to a variety of scenarios, outdoor venues, port logistics, precast concrete plant, steel manufacturing plant, etc., are indispensable to ensure smooth operation.

It can be adapted to the lifting needs of different scenes, whether it is prefabricated components handling, steel, large workpiece lifting, can be a flexible response.

Different scenes of operational needs vary greatly, so the gantry crane is not a single model, but a variety of types, each type is designed for specific scenes.

Henan Mine Crane’s MG double girder gantry crane

Make sense of the type of gantry crane, first clear its classification logic. The industry is usually divided from four core dimensions, clear and easy to understand, easy to quickly match their needs.

The four core dimensions are: structural design (the number and form of the main girder, determining load-bearing and stability), mobility (travel mode, affecting the flexibility of the operation), span and load (the core parameters, matching the load demand), the application environment (adaptable to indoor, outdoor or extreme scenes).

The following combination of these dimensions, a detailed description of the various types of gantry crane features, applicable scenes and advantages, to facilitate a comprehensive understanding.

Single girder gantry crane only has a main girder, both ends supported by the legs, simple structure. Lifting mechanism is mostly electric hoist, installed below the main girder, flexible operation.

Because of its simple structure, light weight, manufacturing process is not complex, the cost is more advantageous, suitable for users with limited budget.

The operating class is mostly A3-A5 (light to medium), suitable for infrequent, light to medium load scenarios, such as daily loading and unloading, small equipment maintenance.

Small workshops (e.g. hardware factories, small machinery factories) are the core application scenarios, where raw materials and small workpieces can be lifted to save space and meet the basic lifting requirements.

Small and medium-sized warehouses, it can be used with shelves to complete the transfer of goods, without the need to invest heavily in building complex lifting systems, cost-effective.

It is also commonly used in automobile workshops, small repair stations and other places to lift heavy parts, flexible operation, and can improve the maintenance efficiency.

Cost control is its most prominent advantage, procurement, installation and maintenance costs are lower than large gantry cranes, very suitable for small and medium-sized enterprises.

It is easy to install, without complex foundation treatment, can be commissioned in a few days; wheel pressure is low, the existing site can be adapted without remodeling.

Single-girder gantry crane manufactured by Henan Mine Crane

Double girder gantry crane adopts two parallel main girder structure, strong rigidity, good stability. Lifting trolley running on the top of the main girder, can raise the lifting height and carry more load.

Compared with the single girder gantry crane, its structure is more complex, greater weight, manufacturing process requirements, designed for heavy-duty, high-intensity operations.

The operating class is A5-A8 (intermediate and advanced), which can be adapted to frequent and continuous heavy-duty operations, such as 24-hour non-stop lifting of steel in steel mills and other scenarios.

Steel mills are the core application scenarios. Steel ladle transfer, billet lifting, finished product handling, etc., all require its heavy-duty capacity and stability to ensure safe and efficient operations.

Shipbuilding plant on the lifting requirements are extremely high, double girder gantry crane of large span, large load characteristics, can be adapted to the hull segments, engines and other super-heavy parts lifting needs.

Heavy equipment yard, large component prefabrication plant and other large outdoor sites, it is also commonly used to carry large machine tools, prefabricated bridge components and other heavy objects, adapted to the complex outdoor operating environment.

Outstanding heavy-duty performance is its core advantage, it can stably carry hundreds of tons of heavy loads, and it is not easy to be deformed and malfunctioned under high-intensity operation, so as to ensure the safety of operation.

Its strong rigidity, lifting shaking small, accurate positioning, suitable for high-precision needs; at the same time can withstand frequent continuous operation, longer service life, suitable for long-term high-intensity production scenarios.

Henan Mine Crane’s MG double girder gantry crane

Half gantry crane structure is special, one side of the legs fall to the ground track, the other side of the wheels run on the factory elevated runway beam, fusion of gantry cranes and bridge cranes, taking into account the advantages of flexibility and space utilization.

The height and span of the main girder can be adjusted according to the needs, without the need of independent ground foundation on both sides, which is more adaptable to the site.

It is most suitable for workshops with limited space (e.g. old narrow workshop). Under the premise that the top structure of the workshop can bear the load, it can make full use of the existing space to complete the lifting of heavy loads without the need to install a full gantry crane.

It is also suitable for indoor and outdoor combined working areas (e.g. workshop entrances and exits), seamlessly connecting indoor workpiece handling with outdoor cargo loading and unloading, without the need for frequent replacement of lifting equipment.