The QJH Gaston coal mine explosion-proof winch is a specialized piece of equipment designed for use in hazardous environments typically found in coal mines. It is engineered to meet stringent safety standards to prevent ignition of flammable gases, dust, or fibers. These winches are built with robust construction to withstand the harsh underground conditions, featuring explosion-proof electrical components and housings to ensure safety. They are crucial for moving heavy loads and equipment within the mine, contributing to efficient operations while maintaining a high level of safety for the workers.
DETAIL PARAMETERS

| QJH5 | QJH5D | QJH20 | QJH30 | QJH50 | QJH80 | QJH100 | QJH150 | QJH250 | ||
| Compressed air pressure(Mpa) | 0.6-0.7 | 0.6-0.7 | 0.7-0.8 | 0.7-0.8 | 0.7-0.8 | 0.7-0.8 | 0.7-0.8 | 0.7-0.9 | 0.7-1 | |
| First layer pressure (KN) | 5 | 5 | 20 | 30 | 50 | 80 | 130 | 150 | 250 | |
| Rated speed(m/min) | 48 | 48 | 24 | 24 | 12 | 5 | 6 | 3.5 | 3 | |
| Air motor | Rated power(KW) | 4 | 4 | 12 | 15 | 17 | 30 | 30 | 30 | 30 |
| Number of cylinders | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | |
| roller | Diameter(mm) | Φ175 | Φ175 | Φ230 | F222 | Φ225 | Φ300 | F506 | F522 | Φ720 |
| Width(mm) | 120 | 198 | 335 | 335 | 335 | 620 | 810 | 860 | 860 | |
| Rim diameter(mm) | Φ290 | Φ290 | F465 | F465 | F465 | Φ660 | Φ765 | Φ820 | Φ1150 | |
| Rope capacity (m) | 120 | 120 | 150 | 150 | 150 | 200 | 350 | 200 | 200 | |
| Gas consumption (L/s) | 125 | 125 | 100 | 220 | 245 | 400 | 400 | 400 | 400 | |
| Steel rope diameter (mm) | 8 | 8 | 14 | 16 | 16 | 24 | 24 | 28 | 38 | |
| Dimensions | Length(mm) | 725 | 857 | 1190 | 1210 | 1310 | 1760 | 2280 | 2650 | 2700 |
| Width(mm) | 342 | 342 | 750 | 770 | 770 | 1009 | 1300 | 1400 | 1500 | |
| Height(mm) | 530 | 440 | 790 | 816 | 1016 | 989 | 1250 | 1260 | 1400 | |
| Inlet pipe size | 1 | 1 | 1 | 11/2 | 11/2 | 13/4 | 13/4 | 13/4 | 13/4 | |
| Total weight (excluding wire rope) (kg) | 120 | 130 | 380 | 418 | 420 | 1380 | 1860 | 3900 | 4100 | |

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