Applications：Iron and steel metallurgy, electricity, water, aerospace, shipbuilding, automobiles, coal, petrochemicals
QB type explosion-proof hook bridge crane's all motors, electrical explosion-proof in accordance with the provision of GB3836.2-2000 the whole machine performance comply with the standard and provision of JB/T5897-2006 , explosion-proof products designated by a national inspection unit inspection contract, made of . Explosion-proof mark is Exd II BT4, Exd II CT4 respectively. This product is suitable for factories, incoming burst capacity is no more thanⅡB or ⅡC-level, ignition temperature group to T1-T4 group of flammable gas or steam and air to form an explosive gas mixture of places suitable for zone 1 or zone 2 hazardous area (see GB3836.2-2000). Our company can produce a rated capacity less than 75 tons of products, working level is A3.