Reverse Circulation Drilling Rig for Sale – Fast, Clean & Precise RC Drilling Rig for Mineral Exploration

Struggling with slow drilling speed, contaminated samples, borehole collapse, or unstable drilling performance in hard rock formations? YG Machinery provides professional reverse circulation drilling rigs designed for efficient mineral exploration in demanding mining environments.

Our RC drilling rig uses a dual-wall drill pipe system and high-pressure reverse airflow technology to deliver fast penetration, precise sample recovery, and stable drilling performance in gold, copper, iron ore, and mineral exploration projects.

Widely used in African mining regions such as Guinea, Ghana, Burkina Faso, Zimbabwe, and Cameroon, the machine performs reliably in hard rock, fractured formations, high-temperature environments, and remote mining areas.

Why Mining Contractors Choose YG RC Drilling Rigs

✔ Fast penetration in hard rock formations
✔ Clean and uncontaminated geological samples
✔ Automatic rod handling system for safer operation
✔ Suitable for remote and water-scarce mining areas
✔ Stable drilling performance under continuous heavy-duty work
✔ Lower fuel consumption and reduced maintenance costs
✔ Compatible with casing systems for unstable formations

👉 Contact us now to get RC drilling rig price, compressor recommendation, and professional drilling solutions within 12 hours.

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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.

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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.

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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.

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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.

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Successful Mining Project in Guinea

A mining contractor in Guinea required an efficient drilling solution for an iron ore exploration project in mountainous terrain.

The customer faced several challenges:

• Low penetration efficiency
• Borehole collapse in unstable formations
• Difficult transportation conditions
• High drill tool wear
• Frequent downtime during drilling

After evaluating the geological conditions, YG Machinery supplied:

• 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

After deployment, the customer achieved:

✔ Faster drilling speed
✔ Improved drilling stability
✔ Reduced downtime
✔ Better sample recovery quality
✔ Higher overall exploration efficiency

The customer was particularly satisfied with the machine’s adaptability in rugged African mining environments.

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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

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Frequently Asked Questions

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..

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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.