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| model | HW938 | HW938H |
| engine | Yuchai | Yuchai YCA07260-T301 |
| power（KW） | 191 | 191 |
| Drill pipe type（mm） | φ76*3000 | φ76*3000 |
| Drilling diameter（mm） | φ90-138 | φ90-130 |
| Maximum working torque（N.m） | 2200 | 1900 |
| Swing speed（rpm） | 0-100 | 0-115 |
| Propulsion（kN） | 20 | 12 |
| Lifting power（kN） | 16.5 | 16.5 |
| Propulsion method | oil cylinder chain | oil cylinder chain |
| Leveling angle | ±10° | ±10° |
| Walking speed（km/h） | 3 | 3 |
| Gradeability | 25° | 25° |
| gross weight（kg） | 8860 | 10000 |
| Shipping dimensions（mm） | 7550*2500*3060 | 9000*2360*3000 |
| Dust collection method | Dry dust collection | Dry dust collection |
| Displacement | 15m³/min/ 18bar | 15m³/min/ 18bar |
hank you for providing the updated information about the DTH drilling rig.
Main feature:
1. The HW938 model is specifically designed for drilling blast holes with a diameter range of 90-138mm/90-130mm, which aligns with the mentioned specifications.
2. The rig is equipped with a dry dust collector, which helps in minimizing environmental pollution. It also features a drill pipe changer, allowing for
efficient and convenient pipe replacement during drilling operations. The rig incorporates advanced design and layout for enhanced performance.
3. The HW-920 model, purpose-built for hard strata conditions, is a suitable choice for metal, limestone, dolomite, and aggregate open cast quarries and mines.
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