Gantry crane bridge crane is a kind of deformation, also called gantry crane. It is mainly used for outdoor cargo yard, material yard cargo and bulk cargo handling operation. Gantry crane has the characteristics of high utilization rate, large scope of operation, wide adaptability and versatility, and is widely used in port freight yard.

Its metal structure is like a portal frame. Under the main beam, two supporting feet are installed, which can directly walk on the track on the ground, and the two ends of the main beam can have extended cantilever beams.