MHH-type electric hoist gantry crane is a rail-mounted medium-and small-scale lifting device. It is mainly composed of the gantry frame (main beam, legs, lower crossbeam, etc.), hoisting mechanism, traveling mechanism, and electrical system. The electric hoist serves as the lifting mechanism and operates along the lower flange of the I-beam on the main beam.

The truss structure features low self-weight and strong wind resistance. Overall, the crane offers light weight, simple structure, and easy installation and maintenance. It is suitable for general loading, unloading, and lifting work in factories, storage yards, and outdoor warehouses within the medium and small lifting capacity range.