A reverse circulation drilling rig adopts advanced imported RC drilling technology, relying on compressed air reverse circulation to realize down-the-hole drilling operations. It uses a dual-wall drill pipe structure to convey rock cuttings directly to the surface, with matching dust removal and cyclone separation devices to collect samples efficiently and avoid pollution. This piece of rc drilling equipment delivers stable performance in loose strata and bedrock, and is widely recognized as a core device for geological exploration and deep-hole construction. For global buyers looking for reliable reverse circulation drilling rig for sale, this model combines high efficiency, environmental protection and operational stability to match diverse project requirements. Contact us now. 【WhatsApp/WeChat/Phone】+86 13837112713
Parameters of Reverse Circulation Drilling Rig：
| Technical Parameters | YG-400 | YG-500 | YG-600 | YG-800 | YG-1200 |
| Maximum Drilling Depth (m) | 400 | 500 | 600 | 800 | 1200 |
| Hole 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 Air Consumption (m³/min) | 16-55 | 16-55 | 16-75 | 16-96 | 16-96 |
| Maximum Rotation Torque (Nm) | 8000/4000 | 10000/5000 | 12000/6000 | 18000/9000 | 24000/12000 |
| Penetration Rate (m/h) | 10-35 | 10-35 | 10-35 | 10-35 | 10-35 |
| Engine | Yuchai 92KW | Cummins 132KW | Cummins 132KW | Cummins 194KW | Cummins 264KW |
| Drilling Method | Top drive hydraulic rotary propulsion, down-the-hole hammer or mud drilling |
Core Advantages of Reverse Circulation Drilling Rig
1. Efficient Drilling & Low Energy Loss
Equipped with a special reverse circulation impactor, energy transfer efficiency is effectively improved, and daily drilling depth can reach around 200-300 meters. Strong chip removal capability helps reduce the probability of in-hole accidents by a large margin, keeping continuous construction stable.
2. High-Sample Quality & Blockage Resistance
Rock and mineral samples can maintain a high collection rate with no pollution. When drilling in clay formations, the matching hole cleaning device can solve inner pipe blockage in a short time, and the smooth operation rate of drilling is effectively improved.
3. Full Hydraulic Control & Labor Reduction
All machine actions are driven by a hydraulic system, with a maximum rotation torque covering 8000-24000Nm to adapt to different strata. This design can effectively reduce manual operation intensity, and the efficiency of drill pipe connection and disconnection is increased by a considerable extent.
4. Environmentally Friendly Construction
The supporting dust removal system can collect more than 90% of drilling dust, and the cyclone separator can accurately separate slag for sampling. The whole construction process meets most regional environmental protection standards, with low on-site pollution.
5. Stable & Precise Operation
With a drill tool centralizer and level gauge, the accuracy of hole initiation is effectively guaranteed. The drill frame supports construction within an angle range of about -10° to 90°, and the outrigger stroke is around 1.6-1.7m, which enhances the overall stability of the equipment during operation.
6. Component Protection & Durable Performance
The patented air pre-filter can filter out over 90% of intake dust and realize automatic discharge, reducing the wear of engine related parts. The enlarged inner tube of the double-wall drill pipe improves the return efficiency of deep-hole rock samples, and the threaded casing saves on-site construction time effectively.
Application Scenarios of Reverse Circulation Drilling Rig
The reverse circulation drilling rig is adaptable to a wide range of construction scenarios, covering multiple fields such as resource exploration and engineering construction:
- Geological exploration boreholes and deep-hole sampling
- Metal & non-metal mineral resource exploration
- Infrastructure foundation geological detection
- Geothermal well and water conservancy project drilling
- Road, bridge and urban rail transit foundation survey
Customer Case
The client is a large infrastructure construction company in Nigeria, Africa, undertaking the geological survey project for a 12km highway and 3 large bridges; it adopted YG Machinery’s YG-600 reverse circulation drilling rig to complete deep-hole sampling and foundation detection in loose strata, clay interlayers and high-temperature construction environments, with stable operation, high-efficiency drilling and 100% qualified sampling rate; the client highly praised the rig for its outstanding performance in efficiency, environmental protection and reliability, as it finished the project 25 days ahead of schedule and reduced construction costs significantly.
FAQ About Reverse Circulation Drilling Rig
Q1: What geological formations is the reverse circulation drilling rig suitable for?
A: It adapts to loose strata, clay, sand gravel, hard bedrock and other conventional geological conditions, and can handle complex formations with matching drilling tools.
Q2: Can this rig perform inclined hole construction?
A: Yes, the drill frame supports angle adjustment, realizing stable construction within the range of -10° to 90° to meet different project angle requirements.
Q3: What supporting equipment is needed for the rig?
A: It can be matched with screw air compressors, dust removal systems, dual-wall drill pipes, reverse circulation hammers and drill bits to form a complete drilling system.
Q4: Is operation and maintenance difficult?
A: The rig adopts integrated hydraulic control and modular design, with simple operation; we provide complete operation training and after-sales guidance, and spare parts are supplied globally.
Get Your Custom Reverse Circulation Drilling Rig Solution from YG Machinery
Henan Yugong Machinery Equipment Co., Ltd. is a professional manufacturer integrating R&D, production and export of drilling machinery. Our machine is manufactured with strict quality control, equipped with internationally branded core components, and supported by a complete spare parts inventory and global after-sales service. Whether you need detailed parameters, model selection advice or project-specific configuration plans for our reverse circulation drilling rig, our professional team is ready to provide one-stop service.
Contact us now. 【WhatsApp/WeChat/Phone】+86 13837112713
