Bridge Crane
Explosion-proof Bridge Crane QB
Description
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Overhead Crane QB is an explosion-proof Double Girder Overhead Crane and the explosion-proof performance of all motors and electrical appliances conforms to GB3836.2-2000 "Explosion-proof electrical equipment for explosive gas environments Part 2: Explosion-proof type" d "", and the performance of the whole crane conforms to JB / T5897-2006 " "Explosion-proof bridge cranes" standard stipulates that, after the inspection contract designated by the country's designated explosion-proof product inspection unit, the "explosion-proof certificate" has been obtained. The explosion-proof marks are ExdⅡCT4.

 

This overhead crane is suitable for the places where the explosive transmission capacity in the factory is not higher than ⅡB or ⅡC, and the ignition temperature group is T1-T4 group of flammable gas or vapor and air forming an explosive gas mixture. Zone 2 (GB3836.1-2000).

 

Besides cranes, weihua also provide all kinds of Crane Components including Electric Parts such as motor, reducer, brake, electric box, conductor bar, pendant; machenical parts such as wheel, hook block, wire rope, rail track; and other Crane Accessories.

 

 

Features
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1.Certified Explosion-Proof Design

All motors, electrical components, and control systems are flameproof, complying with GB3836.2-2000 and JB/T5897-2006. Certified with explosion-proof marks ExdIIBT4 or ExdIICT4 for use in Zone 1 and Zone 2 hazardous areas.

2.Double Girder Heavy-Duty Structure

Box-type double main girder construction ensures high rigidity and load capacity. Suitable for medium to heavy lifting operations up to 75 tons in explosive gas or dust environments.

3.Spark-Free Safety Measures

Main beam uses high-strength alloy steel with automatic submerged arc welding. Traveling mechanisms adopt low-noise, smooth start/stop designs to minimize impact and avoid spark generation.

4.Explosion-Proof Power Supply System

Trolley power conduction uses I-beam track cable device for safe and reliable electrification. Equipped with flameproof limit switches, cables, control boxes, and lighting systems.

5.Multiple Control Options

Available with cab control, ground pendant, or explosion-proof wireless remote. Adaptable to different hazardous-area operational scenarios.

Specification
 Lifting capacity t 75/20
Span m 13.5 16.5 19.5 22.5 25.5 28.5 31.5
Max.Lifting Height m 20/22
Working system A4
Explosion-proof grade Exd IIBT4; (Exd IICT4)
spend Main  lifting m/min 1.86
Aux lifting 4.2
trolley travelling 10
erane travelling 15.4; (9.88) 15.7(9.9)
Motor lifting TypeKw YBZ250M-8/30(YBZE250M-8)
Auxlfting YBZ180L-6/15(YBZE180L-6)
trolley travelling YBZE132M2-6/3.7
erane travelling YBZE160M1-6/5.5x2YBZE132M2-6/3.7x2YBZE132M2-6/3.7x2
Dimensions(mm) H mm 3302 3302 3302 3306 3304 3308 3310
H1 1318 1318 1318 1322 1320 1324 1326
H2 290 440 542 546 844 844 850
H3 2710 2860 2962 2966 3264 3268 3270
H4 872 872 872 868 870 866 864
Max wheel load KN 219 302 314 324 333 345 356
 Steel track Kg/m QU100
Power source   380V 50HZ 3-Phase A.C. 380V 50HZ
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