The gantry crane is a deformation of the bridge crane. At the port, mainly used for outdoor freight yard, yard goods, bulk loading and unloading operations. The framework of its metal structure like a door-shaped, bearing two feet installed under the main beam, you can walk directly in the ground track, both ends of the main beam with overhanging cantilever. Gantry crane venue utilization, operating range, applicable to a wide range, versatility features. Within port cargo, are widely used.