The Double Girder Semi-Gantry Crane is a hybrid lifting solution that combines the strength of a double-girder gantry crane with the space-efficiency of an overhead crane. Unlike a full gantry crane that requires support structures on both sides, this design features one end supported by a rigid leg that travels on a ground-level rail, while the opposite end carriage rides on an existing building runway beam, wall bracket, or elevated structure. This asymmetric configuration eliminates the need for a second ground rail or foundation, significantly reducing civil works cost and installation time.

The crane is built around two parallel box-section main girders that deliver the torsional rigidity, hook height, and lifting capacity of a full double-girder overhead crane. The twin-girder design means the hoist trolley sits on top of the girders rather than below them, maximizing available hook height within the same structural envelope. A full-length maintenance walkway platform runs along both girders as standard, providing safe, unrestricted access to every hoisting and travel mechanism.

1. Heavy Manufacturing & Metal Processing
Handling large steel coils, plates, structural sections, press frames, engine blocks, and finished machinery in steel service centers, machine shops, and heavy equipment assembly plants.

2. Shipbuilding & Maritime Operations
Lifting hull sections, ship components, and marine equipment in shipyards; also used for dock‑side vessel maintenance and container handling at port terminals.

3. Warehousing, Logistics & Container Freight Stations
Loading/unloading and storing cargo, pallets, and containers in large distribution centers, container yards, and freight stations where floor space is limited.

4. Power Generation & Energy Facilities
Moving heavy turbine parts, transformers, and generators in power stations, as well as handling equipment in oil, gas, and renewable energy projects.

5. Construction & Infrastructure Projects
Transporting precast concrete elements, rebar bundles, railway tracks, bridge components, and large building materials at construction sites, stockyards, and railway yards.

6. Specialty Outdoor & Bulk Handling Operations
Equipped with grabs for coal, ore, sand, and scrap in bulk terminals and recycling yards; also ideal for installation beneath an existing overhead crane on an intermediate runway, creating an independent lower work zone without using floor space, and for outdoor applications with weather‑proof options.