The gantry crane is a kind of deformation of the bridge crane, which is mainly used for loading and unloading operations of outdoor cargo yards, material yards, and bulk cargo. Gantry cranes have the characteristics of high site utilization, large operating range, wide adaptability, and strong versatility, and are widely used in port freight yards. Its metal structure is like a door-shaped frame. Two legs are installed under the main beam, which can directly walk on the track on the ground. The two ends of the main beam can have outrigger cantilever beams.
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