Gantry cranes, also known as overhead traveling cranes, are a variation of bridge cranes. They are primarily used for loading and unloading operations at outdoor cargo yards and material sites for bulk goods. Gantry cranes feature high site utilization, large operational range, wide adaptability, and strong versatility, making them widely used in port cargo yards.

Its metal structure resembles a door frame, supporting two legs beneath the main beam, allowing it to move directly on ground tracks, with the main beam ends capable of having cantilever beams extending outward.