

A reverse drilling machine is crucial for mineral exploration and deep drilling projects. Buyers in Africa and around the world often look for equipment that can handle tough and varied ground conditions. With reverse circulation technology, teams can obtain clean samples, minimize drilling errors, and cut down on overall project expenses. This guide breaks down how the machine operates, why it’s a favorite among geologists, and how it aids in making informed decisions for mining and construction endeavors.
Reverse Drilling Machine Parameter:
| Model | YG150RC | |
| Drill rig weight(crawler mounted) | kg | 9000 |
| Engine Power | kW | 125 |
| Length × Width × Height (normal) | mm | 6750x2200x2950 |
| Ambient Temperature Range | °C | -10~38 |
| Drill Ability | ||
| Nominal Drill Depth | m | 150 |
| End-hole Diameter | mm | 110-250 |
| Drill angle | ° | -10-90 |
| Horizontal hole height | m | 1.85-2.8 |
| Drill head output | ||
| Max Output Torque | N.m | 8000 |
| Output Rotation Speed(continuity) | rpm | 30 / 60, 54/108rpm |
| Output Rotation Speed(interval) | rpm | 62 / 124105/210rpm |
| Feeding | mm | 3500 |
| Thrust Force | kN | 45 |
| Lifting Capacity | kN | 65 |
| Pipe-puller Device Output | ||
| Output Rotation Speed | rpm | 40 |
| Max Output Torque | N.m | 30000 |
| Hole-through Diameter | mm | 370 |
| Auxiliary Winch | ||
| Pull Force of the First Layer | kN | 11 |
| Rope Diameter | mm | 14 |
| Rope Capacity | m | 60 |
| Engine(Cummins) | 6BTA5.9-C125 | |
| Power | kW | 125 |
| Rotary Speed (Max.) | rpm | 2200 |
| Track Chassis Base | ||
| Walk Speed | Km/h | 1.2 |
| Unit Pressure | MPa | <0.05 |
| Climb Ability | ° | ≥20 |
Reverse Drilling Machine Insights and Technical Advantages

Working Principle and Core Functions
A reverse drilling machine uses a reverse circulation system to move cuttings through the inner pipe instead of pushing them to the surface along the outer wall. High-pressure air forces the cuttings upward, keeping samples fresh and clean. This makes the machine ideal for:
- Mineral exploration
- Deep hole drilling
- Soil and rock sampling
- Large construction surveys
Reverse circulation is also easy to set up and can be paired with an RC drilling rig for higher performance in harsh areas.
Technical Strengths
A reverse drilling machine provides several key benefits:
- High sample purity: The reverse flow path avoids contamination caused by mixed cuttings.
- Fast penetration rate: Works well in hard rock and deep layers.
- Simple structure: Easy to maintain on-site with basic tools.
- Stable performance: Works with various air compressors and support systems.
- High adaptability: Fits well with an RC drilling machine or standard reverse circulation drill rig.
These features allow engineering teams, mining companies, and survey contractors to complete drilling tasks with fewer delays.
Reverse Drilling Machine Q&A

Because it delivers cleaner samples, faster drilling speed, and stable control in difficult ground.
Yes. It works well for deep geological layers when combined with a proper well-drilling system.
Yes. RC drilling is widely used in metal exploration because sample quality directly supports accurate grade evaluation.
Reverse Drilling Machine Applications and Case Study

Where It Works
A reverse drilling machine can be used in:
- Gold, copper, cobalt, and iron ore exploration
- Groundwater and deep well drilling
- Geotechnical investigation
- Road, bridge, and foundation surveys
- Environmental and soil monitoring
Case Study from Africa

A customer named Daniel from Zambia was working on a gold exploration project in a granite region. His team used a traditional core drilling setup, but progress was slow and the samples were mixed with surface dust. He switched to our reverse drilling machine to improve sample accuracy.
After the change:
- Drilling speed increased by about 40%
- Sample contamination dropped sharply
- Laboratory testing became faster and more accurate
- The team identified high-grade ore bodies in three drilling blocks
These results helped Daniel secure more investment and shorten the exploration timeline.
How to Choose the Right Reverse Drilling Machine
Buyers often ask how to choose the correct model. The best way is to check:
- Ground condition: Hard rock needs stronger airflow and a sturdy drill pipe.
- Target depth: Deeper holes require stable power and large-capacity compressors.
- Mobility: Crawler rigs offer stability; wheeled rigs move faster between sites.
We support customers by reviewing their project needs and offering tailored recommendations.
How to Improve Sample Purity in RC Drilling
Clean samples play a key role in project evaluation. To keep sample quality high:
- Use standard RC rods
- Check air seals before each shift
- Keep the discharge system clear
- Use a stable and reliable compressor
YG Machinery provides training and setup guidance so teams can maintain high sample standards throughout the project.
Ways to Reduce Drilling Costs
Many buyers care about cost control. A reverse drilling machine can already lower costs because it drills faster with fewer errors. Additional savings come from:
- Using efficient power systems
- Choosing the right drill bit size
- Reducing re-drilling through accurate planning
- Performing regular maintenance
We also supply affordable spare parts and technical support to reduce downtime on site.
YG Machinery Strength and Service
What We Offer
YG Machinery supports buyers with:
- Free technical consulting
- Customized drilling solutions
- Overseas installation guidance
- Long-term spare parts supply
- Maintenance training for drilling teams
Customer Feedback

“We used YG’s RC drilling equipment in Ghana. The machine worked smoothly, and the support team helped us solve issues quickly.”
— Engineer Michael
If you are looking for a reliable reverse drilling machine or want more details about our reverse circulation drilling rig for sale, our team is ready to help.
👉 Contact us today for a free quote and a customized drilling solution.




