QB Type Customer Design Explosion-Proof Double Beam Overhead Crane with Hook

QB Type Customer Design Explosion-Proof Double Beam Overhead Crane with Hook ​ Brief Introducion: This QB explosion proof bridge crane work together with a BCD explosion proof electric hoist. The structure equipped with sealed cover,it has strong explosion proof ability. The lift capacity is 5ton-32ton.Span length is 10.5m-31.5m. Work duty A3-A4, working environment temperature is -25~ 40℃ Explosion proof grade is : Exd II BT4, Exd II CT4. It can work in combustible,