DR-300 Water Well Drilling Rig
Depth 300 m · Feed stroke 6.6 m · Lifting force 18 t
The DR-300 Water Well Drilling Rig combines 300 m drilling capacity with a 6.6 m feed stroke and 18 t lifting force. Its hydraulic rotary head delivers 5,700–7,500 N·m torque for 140–325 mm boreholes.
DR-300 Water Well Drilling Rig
The DR-300 Water Well Drilling Rig uses an 85 kW diesel engine and a steel crawler chassis. Drilling depth is 300 m, with a hole-diameter range of 140–325 mm. The rig is suited to water-well work for irrigation and community water supply.
Rotary head and long feed stroke
The hydraulic rotary head provides 5,700–7,500 N·m torque and a rotation-speed range of 40–70 rpm. A 6.6 m feed stroke accommodates 6 m drill pipe, alongside 1.5, 2 and 3 m pipe lengths. Compatible pipe diameters are 75, 89 and 102 mm.
Lifting force is 18 t. Rapid rise speed is 22 m/min and fast feed speed is 40 m/min. The auxiliary winch has 2 t lifting force.
Controls and site setup
The box-style console groups gauges and operating levers beside the operator seat. Hydraulic hoses run along the mast and down to the drilling assemblies. Steel crawler tracks carry the machine at 2.5 km/h. Four leveling legs support the chassis, with a leg stroke of 1.4 m.
Air supply and transport
Working air pressure is 1.7–3.0 MPa, with air consumption of 17–36 m³/min. The machine weighs 8 t and measures 5,900 × 1,850 × 2,200 mm.
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Box-style operating console
Gauges and manual operating levers are grouped in a side-mounted box console. The console sits beside the operator seat, with the instruments above the lever banks.
Rotary head and drilling assembly
The hydraulic rotary head sits on the guided mast assembly above the drilling axis. Rotation torque is 5,700–7,500 N·m, with a 40–70 rpm speed range and 6.6 m feed stroke.
Steel crawler and leveling legs
Steel crawler tracks carry the machine between drilling positions. Four leveling legs support the frame during setup; leg stroke is 1.4 m and travel speed is 2.5 km/h.
Technical specifications
| Model | DR-300 |
|---|---|
| Drilling depth | 300 m |
| Hole diameter | 140–325 mm |
| Engine rated power | 85 kW |
| Feed stroke | 6.6 m |
| Rig lifting force | 18 t |
| Rotation torque | 5700–7500 N·m |
| Rotation speed | 40–70 rpm |
| Drill pipe diameter | Ø75 / Ø89 / Ø102 mm |
| Drill pipe length | 1.5 / 2.0 / 3.0 / 6.0 m |
| Working air pressure | 1.7–3.0 MPa |
| Air consumption | 17–36 m³/min |
| Rapid rise speed | 22 m/min |
| Fast feed speed | 40 m/min |
| Travel speed | 2.5 km/h |
| Winch lifting force | 2 t |
| Leveling-leg stroke | 1.4 m |
| Machine weight | 8 t |
| Dimensions (L × W × H) | 5900 × 1850 × 2200 mm |