The gantry crane is a kind of deformation of the bridge crane. It is mainly used for lifting and mounting of large objects and large equipment. Its metal structure is like a portal frame, which carries two legs under the main beam, which can walk directly on the earth's orbit. The two sides of the main beam can have overhanging cantilevers. The gantry crane has the characteristics of high utilization rate, wide range of operation, wide adaptability and strong universality. It is widely used in port yard.

　　Zhejiang xuyong transportation co., LTD. Has a 700T hydraulic gantry crane. For now, zhejiang province is the first to have large gantry cranes.