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Construction machinery
Pneumatic Drill Rig HQZ320L
Available with a 3 m or a 6 m tower, in both cases with 85 kW. The long tower feeds 6.6 m in one pass and lifts 24 t, the short one 3.6 m and 18 t.
Both versions run on steel tracks and reach 320 m of depth at diameters from 130 to 325 mm. Weight rises with the tower, from 7000 to 9000 kg. Two hydraulic motors drive the rotary head, with stepless speed control.
The short tower takes drill rods of 1.5, 2.0 and 3.0 m, the long one rods of 3.0 and 6.0 m. Working pressure reaches 3 MPa, and 3.3 MPa with the 6 m tower.
Technical data
- Version
- 3 m tower or 6 m tower
- Total weight
- 3 m: 7000 kg / 6 m: 9000 kg
- Undercarriage
- Steel tracks
- Dimensions
- 3 m: 5300 × 2200 × 2800 mm / 6 m: 5300 × 2200 × 2870 mm
- Engine brand
- Yuchai
- Rated output
- 85 kW
- Maximum torque / speed
- 3 m: 6000-7500 N·m / 40-70 rpm, 6 m: 8500-9000 N·m / 55-115 rpm
- Hole diameter
- 130-325 mm
- Drilling depth
- 320 m
- Feed length in one pass
- 3 m: 3.6 m / 6 m: 6.6 m
- Working pressure
- 3 m: 1.7-3.0 MPa / 6 m: 1.7-3.3 MPa
- Travel speed
- 2.5 km/h
- Air consumption
- 17-35 m³/min
- Drill rod diameter
- 76/89/102 mm
- Drill rod length
- 3 m: 1.5/2.0/3.0 m / 6 m: 3.0/6.0 m
- Lifting capacity
- 3 m: 18 t / 6 m: 24 t
