RC drilling works faster than many traditional methods. Mining companies want large sampling programs finished quickly. Reverse circulation drilling equipment uses compressed air to remove cuttings continuously. Rock chips return through the drill rod center, so sample flow stays stable.
Compared with core drilling, RC drilling usually improves efficiency by 2-3 times. Hard rock projects show the biggest advantage.The
YG Machinery reverse circulation drilling machine uses a full hydraulic system. Mast lifting, feeding, and walking stay smoother during operation.
✏️ Tip: On real job sites, downtime often wastes more time than drilling itself.
Reverse Circulation Drilling Equipment Parameter
| Technical Parameters | unit | YG-400 | YG-500 | YG-600 | YG-800 | YG-1200 |
| Maximum drilling depth | M | 300 | 400 | 500 | 600 | 1000 |
| Drilling diameter | mm | 105-305 | 105-400 | 105-450 | 105-550 | 105-800 |
| Recommended working air pressure | Mpa | 1.2-3.5 | 1.6-6 | 1.6-6 | 1.6-8 | 1.6-8 |
| Recommended gas consumption | m³/min | 16-55 | 16-55 | 16-75 | 16-96 | 16-96 |
| Drill pipe length | m | 3 | 3 | 3 | 6 | 6 |
| Recommended drill pipe diameter | mm | 89/102 | 102/114 | 102/114 | 114/127 | 127/146 |
| Recommended diameter for air reverse circulation double-walled drill pipe | mm | 89/102 | 102/114 | 102/114 | 114/127 | 127/146 |
| Axial pressure | T | 6 | 7 | 7 | 11 | 13 |
| Lifting force | T | 22 | 25 | 29 | 47 | 57 |
| Rapid ascent speed | m/min | 20 | 23 | 29 | 29 | 30 |
| Fast forward speed | m/min | 32 | 33 | 33 | 42 | 44 |
| Maximum rotational torque | Nm | 8000/4000 | 10000/5000 | 12000/6000 | 18000/9000 | 24000/12000 |
| Maximum rotational speed | r/min | 75/150 | 75/150 | 75/150 | 70/140 | 86/172 |
| Small auxiliary hoisting force | T | 1.5 | 1.5 | 2.5 | 2.5 | 2.5 |
| Drilling efficiency | m/h | 10-35 | 10-35 | 10-35 | 10-35 | 10-35 |
| Walking speed | Km/h | 2.5 | 2.5 | 3.5 | 5 | 6.4 |
| External dimensions | m | 6.2*1.85*2.8 | 7*2.1*2.8 | 7*2.1*2.8 | 10.5.*2.25*3.3 | 11.5*2.25*3.4 |
| Adaptation conditions | Loose layers and bedrock | |||||
| Drilling method | Top-drive hydraulic rotation and propulsion, down-the-hole hammer drilling or mud drilling. | |||||
| Optional accessories | Mud pumps, centrifugal pumps, generators, foam pumps | |||||
How Does Reverse Circulation Drilling Equipment Reduce Sample Contamination?
Mining projects depend on accurate geological data. Poor samples create expensive mistakes.
RC drilling uses dual-wall drill rods for reverse circulation. Compressed air sends samples directly into the collector, so outside contamination stays low.
YG Machinery reverse circulation drilling rig includes a cyclone separator system. Samples stay cleaner during collection.
The rig also uses a dust suppression system. Dust spread becomes much lower.
This matters a lot. Especially in environmentally sensitive mining areas.
Why Does the Dust Collection System Matter?
Older drilling rigs often lack proper dust control. Engine wear increases quickly in dusty environments.
YG Machinery uses a patented air pre-filter system. It removes more than 90% of intake dust automatically.
Engine life becomes longer. Maintenance frequency also drops.
In today’s market, one day of downtime costs serious money.
Key Structures Inside Reverse Circulation Drilling Equipment
Hydraulic Systems Improve Stability
Hydraulic control reduces manual handling. Rig movements become more accurate.
YG Machinery uses a mast compensation cylinder system. Mast rigidity increases after ground contact.
The rig stays stable even in broken rock formations.
Why Is Drill Rod Protection Important?
Many buyers ignore drill rod wear. However, it becomes a major long-term expense.
YG Machinery uses a compensation sliding plate system. Drill rod threads stay protected during operation.
Rod service life becomes longer. Maintenance costs stay lower.
How Can Drilling Accuracy Improve?
Poor hole alignment affects blasting and ore analysis later.
YG Machinery includes a centering device and level indicator. Hole positioning becomes more accurate.
The combined clamp system also matches different drill tool sizes automatically.
Main Applications of Reverse Circulation Drilling Equipment
Gold and Copper Exploration
RC drilling is widely used in gold mining projects because sampling stays fast and reliable.
Many African and South American projects require continuous deep-hole drilling. Reverse circulation drilling equipment works well for these jobs.
Geothermal and Deep Water Wells
Many people think RC rigs only suit mining. That is not true.
A reverse circulation drilling machine also removes cuttings efficiently in geothermal and water well projects.
Geological Survey Projects
Geological teams often need large amounts of powder samples.
RC drilling supports continuous geological sampling, which helps resource evaluation programs.
Customer Cases From South Africa and Peru
In 2023, a South African customer named Michael searched for an rc drill rig for sale for gold exploration drilling.
His old rig suffered from heavy dust blockage problems. Engine wear increased quickly, and labor costs stayed high.
After using YG Machinery reverse circulation drilling equipment, sampling efficiency improved by about 35%.
More importantly, continuous operating time increased significantly.
Another customer from Peru, Jose, managed high-altitude copper drilling projects.
Thin air caused unstable compressor performance on older rigs.
YG Machinery matched a suitable air compressor solution and improved the air filtration system.
The project later achieved stable drilling depths above 350 meters.
How Do I Choose an RC Drill Rig for Sale?
Focus on these factors:
- Drilling depth
- Compressor matching
- Hydraulic stability
- Dust control ability
- Drill rod service life
Why Do More Buyers Choose YG Machinery?
YG Machinery focuses on long-term drilling stability, not only equipment pricing.
Our reverse circulation drilling equipment already works in Kazakhstan, South Africa, Chile, Peru, Ghana, and the UAE.
Many customers report stable performance under high dust and high-temperature conditions.
If you need a reliable reverse circulation drilling rig, YG Machinery can provide a drilling solution built for real mining conditions.
