Ordinary gantry cranes

This crane types and multi-use box truss structure, the most widely used. You can carry a variety of bulk materials into items and, from the weight of 100 tons, a span of 4 to 39 meters. Grab common with the work of a higher level single girder bridge cranes. Common gantry crane mainly refers hook, grab, electromagnetic, hoist gantry crane, but also includes shipbuilding gantry crane