The explosion-proof performance of all motors and electrical appliances of the QB explosion-proof bridge crane complies with GB3836.2-2000 "Explosion-proof Electrical Apparatus for Explosive Gas Atmospheres - Part 2: The flameproof type "d" and the overall performance of the machine comply with the provisions of the JB/ T5897-2006 "Explosion-proof Bridge Crane" standard. They have been inspected and qualified by the national designated explosion-proof product inspection unit and obtained the "Explosion-proof Qualification Certificate". The explosion-proof marks are ExdⅡBT4 and ExdⅡCT4 respectively.

This product is applicable to explosive gas mixtures formed by flammable gases or vapors and air within factories where the explosive transmission capacity does not exceed Class ⅡB or ⅡC and the ignition temperature groups are T1 to T4. The applicable hazardous areas are Zone 1 or Zone 2 (for details, see GB3836.1-2000).

This product is generally operated on the ground. According to the user's needs, it can also be operated from the driver's cab. The job level is intermediate.