HH-B electric chain hoist is a new kind of product we developed recently. It has such characteristics as fast lifting speed convenient operation and beautiful appearance. Especially, its unique overloading safety proteetion setting and electrical machine hot protection setting makesure of the higher reliability of this product. It is widely used in lifting light and small goods . It can also be used in low-level space materials circulation system by mating with aerial traveling crane equipment. This product attsts to be effective equipment which can improve working condition and enhance labor efficiency.