Reverse circulation drilling, or RC drilling, is a form of percussion drilling that uses compressed air to flush material cuttings out of the drill hole in a safe and efficient manner.
SQ200 RC full hydraulic crawler RC drilling rig is used by mud positive circulation, DTH-hammer, air lift reverse circulation, Mud DTH-hammer suit with suitable tools.
Main Features
1. Adopted special engineering track chassis;
2. Equipped with Cummins engine
3. Four hydraulic leg cylinders equipped with hydraulic lock to prevent leg retraction;
4. Equipped with mechanical arm is for grab the drill pipe and connect it to the power head;
5. Designed control table and remote control;
6. Double hydraulic clamp max diameter 202mm;
7. Cyclone is used for screening rock powder and samples
| Description | Specification | Data |
| Drilling Depth | 200-300m | |
| Drilling Diameter | 120-216mm | |
| Drilling tower | Drill tower load | 20Ton |
| Drill tower height | 7M | |
| working angle | 45°/ 90° | |
| Pull up-Pull down cylinder | Pull down force | 7 ton |
| Pull up force | 15T | |
| Cummins diesel Engine | Power | 132kw/1800rpm |
| Rotary head | Torque | 6500NM |
| Rotating speed | 0-90 RPM | |
| Clamping diameter | 202MM | |
| Cyclone | Screening rock powder and samples | |
| Dimensions | 7500mm×2300MM×3750MM | |
| Total weight | 11000kg | |
| Air compressor (as optional) | Pressure | 2.4Mpa |
| Flow | 29m³/min, | |
