Dust explosion -proof ring chain Electric gourd is a "explosion -barrier" lifting equipment. According to the environmental environment, it is divided into gas explosion -proof and dust -proof. The usage method is fixed suspension, running suspension type, with manual explosion -proof sports car, or electric explosion -proof sports car installation Walking left and right on the track of Gongfang. The explosion -proof electric gourd exposed explosion -proof parts are made of sparkless materials. In the operation, the product rubbing each other will not produce mechanical sparks. Instead of explosion gas in the flammable and explosive field, it effectively prevent fire accidents and ensure customer property and personal safety.