A crawler down-the-hole drilling rig is a device that can drill holes or mine stones deep underground. It is generally composed of a hydraulic system, an electronic control system, a mechanical structure, etc., and can be used in foundation treatment, bridge construction, tunnel engineering, water conservancy projects, etc.
| model | HW916 | HW916-1 |
| engine | Yuchai YCD4T22T-105A | Yuchai YCD4T22T-105A |
| power（KW） | 78 | 78 |
| Drill pipe type（mm） | φ60*3000 | φ60*3000 |
| Drilling diameter（mm） | φ90-100 | φ90-100 |
| Maximum working torque（N.m） | 2400 | 2400 |
| Swing speed（rpm） | 0-150 | 0-150 |
| Propulsion（kN） | 15 | 15 |
| Lifting power（kN） | 25 | 25 |
| Propulsion method | oil cylinder chain | oil cylinder chain |
| Leveling angle | ||
| Walking speed（km/h） | 2 | 3 |
| Gradeability | 30° | 30° |
| gross weight（kg） | 4800 | 4800 |
| Shipping dimensions（mm） | 5700*2100*2600 | 5700*2100*2600 |
| Dust collection method | detachable | Dry dust collection |
| exhaust volume |
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