This kind of crane is mainly used for hoisting in explosive gas environment. Its basic structure is similar to that of ordinary bridge crane.
However, explosion-proof measures are taken in the mechanical parts such as motor, electrical part and metal contact surface to ensure the safety of explosion-proof environment. The explosion-proof bridge crane can be divided into two types according to the explosion-proof category:
1. Explosion proof bridge crane for coal mine: It is mainly used in the part above the ground and the part below the non mining face of the coal mine.
The crane shall have the coal mine safety certificate.
2. Factory explosion-proof bridge crane: It is mainly used in dangerous and important places with combustible gas or mixture. The crane shall have explosion-proof certificate issued by the national testing center.