As a type of bridge building crane, the launching gantry is suitable for the highway, railway and bridge construction. Bridge building crane is composed of the main beam, the upper end beam, the outriggers, the lower end beam, the lifting trolley, the hydraulic system and the electrical device.

Bridge launching gantry crane is suitable for road and bridge engineering sites. Due to movable position, the crane movement is very flexible. The connecting parts are connected in the form of connecting rods, enabling the crane to easily disassemble and transport.

Girder launcher is mainly used for lifting equipment in the construction of railways and highways. This launching gantry is composed of main girder and connection system, fixed outriggers, movable outriggers, trolley walking mechanism, special spreaders and control systems.