Electric hoist gantry crane is a small and medium-sized lifting equipment that runs on rails. It is mainly composed of mast (main beam, outrigger, lower beam, etc.), hoisting mechanism, operating mechanism and electronic control part. Electric hoist is used as lifting equipment. The mechanism runs along the lower flange of the I-beam of the main beam when working. The gantry structure is divided into two types: box-shaped and truss. The box-shaped technology is good and easy to manufacture; the truss has light weight and strong wind resistance. The whole machine has the characteristics of light weight, simple structure, convenient installation and maintenance, etc. It is suitable for general loading, unloading and lifting work in outdoor places such as factories, mines, freight yards and warehouses within the range of small and medium lifting weights. It is prohibited to be flammable, explosive and corrosive. Work in a gaseous environment. There are three operation modes: ground handle, wireless remote control and driver's cab. There are two forms of power supply: cable reel and high-altitude sliding line.