400–1200 m drilling depth | High-torque RC drilling | Clean sample recovery

YG Machinery manufactures reverse circulation drilling rigs for mineral exploration, designed for fast penetration, clean sample recovery, and stable drilling in challenging mining environments.
Our RC drilling rigs use a dual-wall drill pipe system and high-pressure reverse airflow to improve drilling efficiency and sample recovery in gold, copper, iron ore, and lithium exploration projects.
400–1200 m Drilling Depth | High-Torque Rotary Head | Dual-Wall Drill Pipe | Clean RC Sample Recovery
Why Choose YG RC Drilling Rigs?
✔ Fast penetration in hard rock and challenging formations
✔ Clean and representative RC sample recovery
✔ High-torque rotary head with dual-wall drill pipe system
✔ Automatic rod handling for safer and more efficient operation
✔ Suitable for hard rock, fractured formations, and loose ground
✔ Casing-compatible design for unstable formations
Mining applications: Gold | Copper | Iron Ore | Lithium | Mineral Exploration
👉 Get RC Drilling Rig Price & Configuration
Tell us your required drilling depth, hole diameter, and ground conditions. Our team can recommend a suitable RC rig and compressor configuration.
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 |
👉 Get customized model recommendations based on your drilling depth, geological conditions, and compressor requirements.



How the RC Drilling Rig Improves Exploration Efficiency?
Traditional drilling methods often face multiple problems during mineral exploration:
- Slow drilling speed in hard rock
- Sample contamination during drilling
- Borehole collapse in loose formations
- High downtime and maintenance costs
- Difficult operation in remote mining areas
YG reverse circulation drilling rigs are specifically designed to solve these problems.
Using compressed air circulation, rock cuttings are transported to the surface through the inner tube of the dual-wall drill pipe, ensuring fast sample return and accurate geological analysis.
Compared with conventional drilling methods, the RC drilling system provides:
✔ Faster penetration rate
✔ Better sample accuracy
✔ Reduced drill tool wear
✔ Lower operating costs
✔ Improved drilling stability
Designed for Hard Rock & Unstable Geological Conditions
The RC drilling rig performs effectively in various geological formations, including:
- Granite and basalt hard rock formations
- Sand and gravel layers
- Water-bearing formations
- Fractured geological zones
- Loose and collapsing formations
For unstable ground conditions, the machine can be equipped with a casing system to protect borehole walls and prevent collapse during drilling operations. This significantly improves drilling stability and ensures continuous sample recovery in soft or fractured formations.
👉 The rig is highly suitable for African mining environments with complex geology and rugged terrain.



Integrated High-Efficiency Drilling System
1. Automatic Rod Handling System
The hydraulic automatic rod handling system reduces manual labor intensity and improves drilling safety.
Benefits include:
- Faster pipe loading and unloading
- Reduced downtime during drilling
- Improved operational efficiency
- Lower labor costs
- Safer drilling operations
2. Cyclone Separator & Dust Collection System
The high-efficiency dust collection system separates rock cuttings and reduces environmental pollution during drilling operations.
This helps maintain:
- Cleaner sample collection
- Better working conditions
- Improved drilling visibility
- Reduced dust impact on equipment
3. High Torque Rotary Head
The rotary head delivers stable power output and strong drilling capability in hard rock formations.
👉 This allows the rig to maintain efficient penetration even under continuous heavy-duty operation.
4. Dual-Wall Drill Pipe System
The dual-wall drill pipe system is the core technology of reverse circulation drilling.
Compressed air transports rock samples through the sealed inner pipe, preventing contamination and ensuring accurate depth sampling for mineral analysis.



Complete RC Drilling Solution
YG Machinery provides complete drilling solutions rather than standalone equipment.
The RC drilling rig can be integrated with:
- High-pressure air compressors
- Steel crawler air compressor systems
- DTH hammers and drill bits
- Auxiliary drilling tools
- Mud pumps for complex formations
- Casing systems for unstable boreholes
👉 We provide customized drilling configurations based on your mining project requirements.


Successful Gold Exploration Project in Guinea
A mining contractor in Guinea required a reliable RC drilling solution for a gold exploration project in rugged terrain.
The project presented several challenges:
- Low drilling efficiency in hard rock
- Borehole instability in fractured formations
- Difficult transportation conditions
- High drill tool wear
- Frequent downtime during drilling
YG Machinery supplied a customized RC drilling package including:
- RC drilling rig with automatic rod handling system
- Steel crawler-type remote-controlled air compressor
- Dual-wall drill pipe system
- Casing solution for unstable formations
The equipment was adapted to the project’s rugged terrain and geological conditions, helping the contractor maintain stable drilling operations and improve exploration efficiency.
African Applications: Mali | Ghana | Burkina Faso | Côte d’Ivoire | Guinea | DRC | Zambia | Nigeria | Cameroon
Why Choose YG Reverse Circulation Drilling Rigs?
YG Machinery focuses on providing reliable and efficient drilling equipment for mineral exploration projects worldwide.
Our Advantages
✔ Professional RC drilling rig manufacturer
✔ Customized drilling solutions for different geology
✔ Strong experience in African mining projects
✔ Stable quality and durable machine structure
✔ Fast spare parts supply and technical support
✔ Multiple models available for different drilling depths
✔ Competitive factory-direct price


FAQ about RC Exploration Drilling Rig
1. What is the advantage of RC drilling compared with rotary drilling?
RC drilling provides faster penetration speed, cleaner samples, and more accurate geological analysis, especially in hard rock formations.
2.Can the RC drilling rig work in unstable formations?
Yes. The rig can be equipped with casing systems and mud pumps to improve borehole stability in loose or fractured geological conditions.
3.Is automatic rod handling available?
Yes. YG RC drilling rigs support hydraulic automatic rod handling systems to improve safety and reduce manual labor.
4.What compressor is required for RC drilling?
Compressor requirements depend on drilling depth, hole diameter, and geological conditions. We provide professional compressor matching recommendations for every project.
5.Which countries are suitable for RC drilling rigs?
The rigs are widely used in African, Middle Eastern, Australian, and South American mining projects, especially in hard rock mineral exploration regions..



Get Your RC Drilling Solution Today
If you are looking for a reliable reverse circulation drilling rig for gold exploration, mineral sampling, or hard rock drilling projects, YG Machinery can provide customized solutions based on your geological conditions and drilling requirements.
👉 Contact us today for:
- Free technical consultation
- RC drilling rig quotation
- Air compressor recommendation
- African mining project solutions
- Drilling video and case studies
We will help you select the most suitable reverse circulation drilling rig for your project.












