MH Single Girder Gantry Crane is a small and medium size simple gantry crane with cantilever. The electric hoist is either CD-I or MD-I. The main girder is made of U-shaped steel plate and I-beam. A all-in-one trolley is installed. Its applicable lifting capacity is 3-16 ton with a span of 10-26 meters, and the working environment temperature is -25°C to +40°C. It has the advantages of simple structure, convenient installation, use and maintenance, and is mostly used in infrastructure construction projects, subway construction, building materials yards, factories, yards, docks, and other places with low frequency of use or less frequency of rated lifting weight.