LH double-girder crane with electric hoist consists of box-shaped bridge, trolley traveling mechanism, crab and electric equipment. It employs fixed electric hoist which is fitted on crab frame as hoisting mechanism. The crab uses LD drive to run, while the trolley adopts LD drive or QD drive. LH double-girder crane with electric hoist has such features as tight dimensions, low building headroom, light dead weight and light wheel load. They are applicable to the transfer, assembly, check and repair as well as load and unload at mechanic processing workshop, subsidiary workshop of metallurgical mills, warehouse, goods yard and power station. They can also be used instead of common double-girder overhead crane at production workshop in light textiles or food industry. It has two kinds of classification, that is, light and medium. The working temperature is generally -25℃-40℃. It is forbidden to work in environment with combustible, explosive or corrosive media.

It has three operation modes: ground handle, wireless remote control and cab. The cab has two types: open cab and closed cab.