MB type semi-gantry cranes with electric hoist, a type of middle-and small-size lifting equipment which runs along rails, is mainly composed of gantry (girder, leg, lower cross beam etc., hoisting mechanism, traveling mechanism and electric control part. Withthe electric hoist as hoisting mechanism, it runs along the lower flange ofthe I-steel of the girder.

The gantry has a leg at its one side and runs along the ground rails, and has no leg at the other side and runs along the rails on the factory workshop. The rest structure and configuration are the same as the MH gantry crane with electric block.

The operation mode adopts a closed cab, with adjustable seats inside, insulation pads laid on the bottom plate, tempered glass windows, equipped with fire extinguishers, electric fans, and auxiliary equipment such as air conditioning, sounders, walkie talkies, etc. can be configured according to user requirements.