MG Double-beam truss gantry crane is comprised of gantry, crane crab, trolley traveling mechanism, cab and electric control system.

The gantry, of a truss structure and having advantages of light structure, strong wind resistance and so on, is composed of girder, upper end girder, leg, lower end girder,traveling trolley and platform railing. The qirder is ofa triangular truss structure, on which laid rails for crane crab to transversely move along the girder. The legs, of a truss structure, are welded by section steel. The platform,which is used to place electric eguipment and used for repair, is furnished with protection railing outside.

The closed cab is employed for operation, where there are adjustable seat, insulating mat on the floor, toughened glass for the window, fire extinguisher, electric fan and ancilary equipment such as air conditioner, acoustic alarm and interphone which can be furnished as required by users.