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| Model | HQZ320L | HQZ320L |
| Drill Mast (m) | 3 | 6 |
| Drilling diameter (mm) | 130-325 | 130-325 |
| Drilling depth (m) | 320 | 320 |
| one-time advance length (m) | 3.6 | 6.6 |
| Main motor power | 85kw | 85kw |
| Working pressure (mpa) | 1.7-3.0 | 1.7-3.3 |
| Air consumption (m³/min) | 17-35 | 17-35 |
| Drill pipe diameter (mm) | 76/89/102 | 76/89/102 |
| Drill pipe length (m) | 1.5/2.0 | 3.0/6.0 |
| Lifting force (T) | 18 | 24 |
Main feature:
-Pneumatic drilling rig, with air compressor, the efficiency is equivalent to 10~15 times of ordinary
drilling rig.
-The drilling on the rock is mainly based on the down-the-hole hammer drilling process. The
down-the-hole hammer rock drilling operation efficiency is high, and the drilling cost per meter is lower.
-Due to the full hydraulic and top drive rotary propulsion lifting, it is suitable for various drilling
processes and various drilling tools, with convenient and flexible control, fast drilling speed and short
auxiliary time, so the operation efficiency is high.
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