This product is called: Semi gantry crane

The MHB type single girder electric hoist semi gantry crane is developed on the basis of the MH type electric hoist gantry crane. It is suitable for the operation of large vehicles with one track on the ground and the other on the workshop rail support beam. Its bridge structure lacks one side support leg and adds one side end beam compared to the MH type. Its usage conditions are basically the same as those of the MH type. Similarly, the MHB type is generally divided into three types: box type, truss type, and main beam box type with supporting leg truss type. The more economical combination type can be selected according to the operating environment and crane parameters of the crane.