Double Girder Overhead Explosion-proof Crane of introduction Double Girder Overhead Explosion-proof Crane of all electrical machines and electric appliances of QB model blast-proof overhead crane with hook conforms to the prescrtions of GB3836.2~2000 Blast-proof Electrical Apparatus for Explosive Atmosphere Part two: Flameproof Type; the performance of complete machine conforms to the prescrtions of JB/T5897–2006 Blastproof Bridge Crane. The Product Crane is qualified inspected by inspection unit of blast-proof product which is appointed by the state. The Product Crane has got Certification of Conformity of An Instrument for Explosive Atmosphere. The signs of blast-proof are Exd II BT4 and Exd II CT4 respectively.
Double Girder Overhead Explosion-proof Crane of applicationDouble Girder Overhead Explosion-proof Crane is applicable to the place in the factory where the capability of transmittingexplosive is no higher than grade II B or II C,and where has mixture of detonating gas which is composed of flammable gas or steam,whose ignition temperature team belongs to T1~T4 team, and air. The applicable danger area is Area 1 or Area 2 (see GB3836.1~2000 for detail) .
Double Girder Overhead Explosion-proof Crane of safe feature1. Weight overhead protection device, 2. Current overload protection system 3. Voltage lower protection function, 4. Main lifting motor with thermal protection5. Top quality load long time bearing polyurethane material buffer 6. Emergency stop system, 7. Crane travelling limited switch 8. Hooks with latch 9. Protective earth10. Explosion proof
