The electric hoist gantry crane is a small and medium-sized lifting equipment that operates on rails. It mainly consists of a gantry (main beam, support legs, lower crossbeam, etc.), a lifting mechanism, a running mechanism, and an electrical control part. The electric hoist serves as the lifting mechanism and runs along the lower flange of the I-beam during operation. The gantry structure is divided into two types: box shaped and truss shaped, with good box shaped craftsmanship and convenient production; The truss has a light weight and strong wind resistance. The whole machine has the characteristics of light weight, simple structure, and convenient installation and maintenance, and is suitable for general loading and unloading lifting work in outdoor areas such as factories, mines, freight yards, and warehouses within the range of small and medium-sized lifting capacity.