Looking for a reliable reverse circulation drilling rig for gold exploration?
Our RC drilling rig is designed for:
✔ Sand & gravel formations
✔ Water-bearing loose ground
✔ Fast penetration drilling
✔ Clean cuttings recovery
✔ Reduced operational cost
Exported to Guinea, Mali, Ethiopia, Sudan and other countries.
Reverse Circulation Drilling Rig Parameters
| Technical Parameters | Unit | YG-400 | YG-500 | YG-600 | YG-800 | YG-1200 |
| Max drilling depth | m | 400 | 500 | 600 | 800 | 1200 |
| Hole diameter | mm | 105–305 | 105–400 | 105–450 | 105–550 | 105–800 |
| Recommended working pressure | MPa | 1.2–3.5 | 1.6–6 | 1.6–6 | 1.6–8 | 1.6–8 |
| Recommended air 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 |
| RC double-wall pipe diameter | mm | 89/102 | 102/114 | 102/114 | 114/127 | 127/146 |
| Feed force | T | 6 | 7 | 7 | 11 | 13 |
| Lifting force | T | 22 | 25 | 29 | 47 | 57 |
| Fast lifting speed | m/min | 20 | 23 | 29 | 29 | 30 |
| Fast feeding speed | m/min | 32 | 33 | 33 | 42 | 44 |
| Max rotary torque | Nm | 8000/4000 | 10000/5000 | 12000/6000 | 18000/9000 | 24000/12000 |
| Max rotary speed | r/min | 75/150 | 75/150 | 75/150 | 70/140 | 86/172 |
| Aux winch lifting force | T | 1.5 | 1.5 | 2.5 | 2.5 | 2.5 |
| Mast stroke | m | 1.6 | 1.6 | 1.7 | 1.7 | 1.7 |
| Travel speed | km/h | 10–35 | 10–35 | 10–35 | 10–35 | 10–35 |
| Gradeability | ° | 21 | 21 | 21 | 21 | 21 |
| Machine weight | T | 11 | 12 | 12.5 | 17 | 23 |
| Overall dimensions (L×W×H) | m | 7×1.85×2.86 | 7×2.1×2.9 | 7×2.1×2.9 | 10.5×2.25×3.3 | 11.5×2.25×3.4 |
| Engine | / | Yuchai 92kW | Cummins 132kW | Cummins 132kW | Cummins 194kW | Cummins 264kW |
Suitable for:
- Gold exploration drilling
- Copper sampling
- Iron ore investigation
- Large diameter foundation drilling
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Are You Facing These Drilling Problems?
Many mining contractors report:
- Slow drilling speed in sandy layers
- Frequent pipe sticking
- Borehole collapse
- Mixed or contaminated samples
- High fuel and air consumption
If your current rig struggles in loose formations, reverse circulation drilling is the proven solution.
Why Reverse Circulation Drilling Is Ideal for Gold Exploration?
Unlike forward circulation rigs, the reverse circulation drilling rig transports cuttings through the inner double-wall drill pipe.
This provides:
✔ Cleaner gold sampling
✔ Less material loss
✔ Stable borehole condition
✔ Faster drilling progress
✔ Reduced downtime
In loose and unstable formations common in West Africa, RC drilling significantly improves efficiency.
Project Case: RC Drilling for Gold Exploration in Guinea
A mining contractor in Guinea required high-efficiency drilling in sandy and water-bearing formations.
Previous problems:
- Low penetration rate
- Frequent tool sticking
- High air consumption
After switching to our reverse circulation drilling rig for sale, the project achieved:
✔ 40% faster drilling speed
✔ 60% reduction in material consumption
✔ Stable borehole structure
✔ Cleaner gold sampling
The client confirmed the RC drilling rig price was justified by improved productivity and lower cost per meter.
Get Gold Exploration RC Rig Price Today
Key Advantages of a Reverse Circulation Drilling Rig
A reverse circulation drilling rig (RC rig) uses a special airflow or fluid circulation system. Instead of pushing cuttings upward along the annulus like a standard rotary rig, the RC rig draws drilling fluid downward along the hole wall, and the cuttings are sucked up through the inner drill pipe.
Unlike a hydraulic core drilling rig, which is designed to recover intact core samples for detailed geological analysis, reverse circulation drilling focuses on fast penetration and efficient removal of cuttings in loose or unstable formations. This reverse flow brings several unique advantages:
- Heavy-duty crawler chassis for rough African terrain
- High torque rotary head for deep drilling
- Professional double-wall RC pipe system
- Strong lifting and feed force
- Low maintenance structure
- Easy spare parts supply
We provide remote technical guidance and video support for African customers.
What Affects RC Drilling Rig Price?
RC drilling rig price depends on:
- Required drilling depth
- Hole diameter
- Engine brand (Yuchai / Cummins)
- Air compressor capacity
- Double-wall drill pipe size
We offer customized configurations based on your project.
Why Choose YG Reverse Circulation Drilling Rigs?
YG Machinery develops drilling systems focused on structural strength, circulation efficiency, and long-term reliability.
Key Strengths
- Heavy-duty frame with strong torque output
- Professionally engineered reverse circulation system
- Stable hydraulic control and smooth operation
- Excellent performance in loose and unstable formations
- Low maintenance requirements and long service life
- Complete technical support and spare parts supply
YG Machinery offers a full range of reverse circulation drilling rigs for sale, with configurations adaptable to different drilling depths, diameters, and site conditions.
Need Technical Details or a Quotation?
Contact YG Machinery to receive detailed specifications and a competitive quotation for a reverse circulation drilling rig tailored to your project requirements. If your project requires intact core recovery rather than cuttings sampling, you may also explore our hydraulic crawler core drilling rig solutions for geological investigation.
