double-girder semi-gantry crane

The BMG type double-girder semi-gantry crane features two main girders, one leg running on a ground rail, and the opposite side supported by a building-mounted runway or wall rail. This design combines the high rigidity and heavy lifting capacity of a double-girder crane with the space-saving advantage of a semi-gantry configuration. Lifting capacity typically ranges from 5t to 50t, with spans up to 35m and duty class A5‑A7. It is ideal for workshops, stockyards, and loading bays where one side has limited floor space but heavy-duty performance is required.

[1] Workshop Loading Bays – Handling heavy machinery, dies, or steel plates near bay doors with one side wall-mounted.

[2] Outdoor Storage Yards – Stacking and retrieving heavy materials (coils, pipes, concrete products) along building perimeters.

[3] Container Loading Areas – Lifting heavy cargo from trucks or containers with the wall-supported side saving floor space.

[4] Railway Maintenance Depots – Servicing locomotive components or heavy spare parts where building rails exist.

[5] Recycling Facilities – Moving heavy scrap bins or bales along a building edge.

[1] High Load Capacity – Double-girder structure supports heavy loads from 5t up to 50t.

[2] Space-Saving Design – Eliminates one gantry leg, freeing up valuable floor space on one side.

[3] Rigid and Stable – Dual girders provide excellent stability and smooth load travel.

[4] Cost-Effective – Uses existing building structure for support, reducing steel and installation costs.

[5] High Duty Cycle – Designed for continuous operation with duty class up to A7.