Description
Reverse Circulation (RC) drilling is a high-performance technique widely used in mineral exploration and geotechnical investigations. Utilizing a dual-walled drill pipe system—with an outer drill rod and an inner return tube—this method enables continuous and steady removal of rock cuttings to the surface. Instead of extracting core samples like in diamond drilling, RC drilling delivers clean, uncontaminated chip samples, ideal for accurate geological analysis. Powered by a robust pneumatic hammer and a tungsten steel drill bit, it efficiently penetrates hard rock formations while maintaining speed, precision, and cost-effectiveness.
Technical Details
| Description | |||
|---|---|---|---|
| Drilling capacity Drilling depth | 500 m | ||
| Drilling diameter | 105-400 mm | ||
| Drill rod diameter | 76/89/102/114 mm | ||
| Drill rod length | 1.5/2/3 m | ||
| Power head parameters Rotation torque | 8000-12000 nm | ||
| Rotation speed (rpm) | 40-160 | ||
| Feed stroke | 3.3 m | ||
| Lifting force | 300 kN | ||
| Thrust force | 150 kN | ||
| Fast lifting speed | 20 m/min | ||
| Fast feed speed | 40 m/min | ||
| Engine parameters Engine brand | Cummins | ||
| Rated power/speed | 132/2200 (kW/rpm) | ||
| Tool winch Lifting force | 20 (kN) | ||
| Matching air compressor Working air pressure | 1.7-3.5 MPA | ||
| Air consumption | 17-42 (m³/min) | ||
| Climbing ability | 25° | ||
| Track parameters | 2*3 (km/h) | ||
| Transport state | 6300*2100*2500 (mm) | ||
| Working state | 4500*3000*6800(mm) | ||
| Overall machine weight | 12 (t) |