Electric hoist semi-gantry crane is a small and medium-sized lifting equipment that runs on rails. The lifting mechanism runs along the lower flange of the I-beam of the main beam during operation. There are outriggers on one side of the gantry, running along the ground track, and no outriggers on the other side, running along the upper track of the factory building. The rest of the structure and configuration are consistent with the MH electric hoist gantry crane.