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An RC drill rig, short for Reverse Circulation drill rig, is a specialized drilling machine that uses compressed air to lift rock cuttings from the drill hole through a reverse air flow system. Unlike traditional drilling methods, the RC drill rig employs a dual-walled drill pipe: air flows down the outer pipe and cuttings are returned up through the inner pipe, ensuring rapid and uncontaminated sample retrieval.
| Technical parameters | BLY-700RC |
| Depth (m) | 600 |
| Borehole diameter (mm) | 80~320 |
| Drill rig weight (kg) | 10000 |
| Length × Width × Height (normal) (mm) | 8250×2350×3250 |
| Power head | |
| Max output torque (N.m) | 14000 |
| Output rotation speed ( rpm) | 55 / 110 |
| Feeding (mm) | 3500 |
| Thrust force (kN) | 150 |
| Lifting capacity (kN) | 300 |
| Mast sliding stroke (mm) | 1000 |
| The clamping range of the orifice device (mm) | 60-330 |
| Model | 6BTA5.9-C180 / CUMMINS |
| Power (kw) | 142KW |
| Rotary speed (Max.) (rpm) | 2200 |
| Fuel tank capacity (L) | 200 |
| Track chassis model | PD135 |
| Walk speed (km/h) | 2.5 |
| Width of pedrail (mm) | 400 |
| Ground specific pressure (MPa) | <0.05 |
| Climb ability (degree) | ≤20 |
| Auxiliary winch (maximum single rope pulling force) (kN) | 20 |