The electric single beam suspension crane is composed of a main beam, an end beam, an electric hoist, and an electric sports car welded with steel plates and I-beams. It is suspended on the I-beam track in the upper part of the factory building, with a cantilever length of 0.5-1 meters. The electric hoist runs along the lower flange of the main beam I-beams to complete the lifting work of items. It has the characteristics of lightweight structure, easy installation and maintenance, and is widely used in production workshops, warehouses, and freight yards. The job level is A3-A5.