MH type electric hoist gantry crane is a small and medium-sized lifting equipment with rail movement. It is mainly composed of portal frame (main beam, outrigger, lower beam, etc.), lifting mechanism, operating mechanism and electric control part, with electric hoist as lifting mechanism. The portal frame structure is divided into box type and truss structure. The box shape is good in technology and easy to manufacture. The truss has light weight and strong wind resistance. The whole machine has the characteristics of light weight, simple structure and convenient installation and maintenance. It is suitable for general loading and unloading of factories, mines, freight yards and warehouses within the scope of small and medium lifting capacity.