5-75/20t QB blast-proof overhead crane with hook Explosion-Proof comprises of all motors and electric and electric components of QB Explosion-Proof crane satisfy standards stipulated by GB3836.2-2000 Explosion-proof Electric Equipment working in Explosive Gas Environment Part-2: Flame-proof Type "D", and the performance of the crane satisfies demand in JB/T5897 Explosion-proof crane. The crane has obtained Explosion-proof certificate after passing examinations by units designated by the government to test explosion-proof products. The explosion-proof marks Exd II BT4 and Exd II CT4 respectively. This product is suitable for areas where the explosion-transmission is not higher than II B or II C and the ignition temperature group of inflammable gas or explosive mixture of steam and gas is not lower than T4. Applicable dangerous zones are zone 1 and zone 2 (please refer to GB3836.1-2000 for details). This product is generally controlled on the ground, but control from the driver's cabin also allowable. The working grade is intermediate. Note: 5-10t crane does not have a auxiliary hook. The weight of this sample is a design value and actual weight varies or -5 to 15 %. Cap: 5t, 10t, 16t/3.2t, 20/5t, 32/5t, 50/10t, 75/20t Work duty: A4 Span: 10.5 - 31.5m Explosion proof grade: DIIBT4/dIICT4
