The QB series explosion-proof overhead crane is designed for material handling in hazardous areas containing flammable gases, vapours, or dusts. It is widely deployed in chemical plants, petrochemical facilities, coal mines, and pharmaceutical production sites. Rated capacity 5t. Span range 10.5~13.5m. All electrical components are explosion-proof rated to comply with national explosion-protection standards.





Built on the foundation of a standard overhead crane, the QB series features explosion-proof treatment of the entire electrical system and all friction-generating parts. The hoisting motor, cross-travel motor, electrical control panel, and travel limit switches are all explosion-proof certified. The crane offers reliable explosion-proof performance, rational structural layout, and convenient operation. Explosion-proof ratings meet ExdIIBT4, ExdIICT4, and related classifications.



Fully explosion-proof electrical system suitable for hazardous locations.
Explosion-proof motors and enclosures eliminate all ignition sources.
Rational structural design with smooth, reliable operation.
Easy maintenance with widely available spare parts.
Compliant with GB explosion-proof standards and international codes.
Explosion-protection scheme can be tailored to the specific zone classification.
| Lifting capacity | t | 5 | 10 | |||||||||||||||
| Span | m | 10.5 | 13.5 | 16.5 | 19.5 | 22.5 | 25.5 | 28.5 | 31.5 | 10.5 | 13.5 | 16.5 | 19.5 | 22.5 | 25.5 | 28.5 | 31.5 | |
| Lifting Height | 16 | 16 | ||||||||||||||||
| Duty | A4 | A4 | ||||||||||||||||
| Explosion-proof grade | ExdⅡBT4 (ExdⅡCT4) | ExdⅡBT4 (ExdⅡCT4) | ||||||||||||||||
| Speed | Hoisting | m/min | 5 | 5 | ||||||||||||||
| Crab travelling | 19.6(14.6) | 20.5(14.6) | ||||||||||||||||
| Crane travelling | 22.3(12) | 22.3(12) | ||||||||||||||||
| limit dimension |
S1 | mm | 800 | 1050 | ||||||||||||||
| S2 | 1250 | 1300 | ||||||||||||||||
| main dimension |
H | mm | 1763 | 1800 | ||||||||||||||
| H1 | 765 | 765 | ||||||||||||||||
| H2 | -24 | 126 | 226 | 376 | 526 | 676 | 826 | 976 | -24 | 126 | 226 | 376 | 526 | 678 | 828 | 978 | ||
| H3 | 2396 | 2546 | 2646 | 2796 | 2946 | 3096 | 3246 | 3386 | 2396 | 2546 | 2646 | 2796 | 2946 | 3096 | 3248 | 3398 | ||
| H4 | 71 | 602 | 552 | |||||||||||||||
| K | 1400 | 2000 | ||||||||||||||||
| W | 3400 | 3550 | 5000 | 4050 | 5000 | |||||||||||||
| B | 5054 | 5204 | 5048 | 5704 | 5882 | 5948 | ||||||||||||
| b | 230 | |||||||||||||||||
| Max.Wheel Loading | kN | 72 | 78 | 84 | 92 | 97 | 109 | 117 | 124 | 101 | 108 | 117 | 122 | 126 | 135 | 144 | 152 | |
| Total Power | kw | 10 | 15.5 | |||||||||||||||
| Crane Rail Recommended | 43kg/m | |||||||||||||||||
| Power Supply | 3-Phase A.C.50Hz 380V | |||||||||||||||||