A reverse circulation drill rig, referred to as an RC drill rig, is a kind of equipment that uses reverse circulation drilling technology for drilling operations. Different from the traditional positive circulation drill rig, the reverse circulation drill rig adopts a unique double-wall drill pipe structure and gas lift principle to suck the cuttings at the bottom of the borehole to the ground through the inner tube of the drill pipe, realizing a fast, efficient and high-quality drilling process. In modern geotechnical engineering and mineral exploration, efficient and accurate drilling technology is crucial. A reverse circulation drill rig (RC Drill Rig) has become an ideal choice for deep hole, large diameter, high-quality sampling drilling with unique advantages. Contact us to get the reverse circulation drilling rig details and quote.【WhatsApp/WeChat/Phone/Skype】+86 136 1385 6800
Reverse Circulation Drill Rig 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 / 124 105/210rpm |
| 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 |
Advantages of Reverse Circulation Drilling Rigs:
- High-Speed Drilling: Thanks to the powerful gas lift reverse circulation system, cuttings can be quickly and effectively discharged from the bottom of the hole, avoiding repeated crushing, greatly improving drilling speed, shortening the construction period, and reducing drilling costs.
- Large Diameter Drilling: Reverse circulation drilling rigs are particularly good at drilling large diameter holes, and can easily achieve drilling holes with diameters of hundreds of millimeters or even larger, meeting the needs of large apertures in mineral exploration, water well engineering, etc.
- High-Quality Cuttings Samples: The reverse circulation system can quickly suck cuttings to the ground, minimize the possibility of cuttings being ground and contaminated at the bottom of the hole, ensure the representativeness and authenticity of cuttings samples, and provide a reliable basis for geological analysis, which is crucial for mineral exploration.
- Adaptability to Various Geological Conditions: Reverse circulation drilling rigs can adapt to a variety of complex geological conditions, including hard rock, broken zones, gravel layers, aquifers, etc. By adjusting the drilling parameters and drilling tool combination, various geological challenges can be effectively addressed.
- Environmental Advantages: Compared with some positive circulation drilling methods that require a large amount of mud, reverse circulation drilling rigs can reduce the use of drilling fluid in some applications and reduce the impact on the environment, especially in areas with scarce water resources. In addition, the closed cuttings return system also helps reduce pollution at the drilling site.
How Reverse Circulation Drill Rigs Work?
- Compressed Air Injection: Air from the compressor is injected down the drill string.
- Cuttings Flushed Upwards: As the bit cuts through the rock, cuttings are mixed with the compressed air and flushed upwards through the annulus.
- Sample Collection: The cuttings-laden air exits the drill hole and passes through a cyclone separator, where the cuttings are collected for analysis.
- Rod Advancement: The drill string is progressively lowered as the hole deepens.
This continuous cycle allows for efficient and continuous drilling operations.
The Main Factors Affecting the Price of Reverse Circulation Drilling Rigs Include:
- Drilling rig type and drilling depth capacity: Different types of reverse circulation drilling rigs (such as small crawler, medium-sized vehicle-mounted, and large deep hole drilling rigs) have significant price differences. The deeper the drilling depth, the higher the price.
- Power system configuration: The power system configuration such as diesel engine power and air compressor exhaust volume directly affects the performance and price of the drilling rig. The more powerful and higher the configuration of the power system, the higher the price.
- Automation and intelligence level: The higher the automation and intelligence level of the drilling rig, such as equipped with automatic drill rod loading and unloading system, remote monitoring system, intelligent control system, etc., the higher the price.
- Brand and manufacturer: Contact YG Machinery, our machine quality, performance, and after-sales service are guaranteed.
- Customized needs: The price of drilling rigs customized by design and production according to the special needs of customers will increase accordingly.
Reverse Circulation Drill Rig Manufacturer – YG Machinery
Reverse circulation drilling rigs play a vital role in modern geotechnical engineering and mineral exploration with their excellent performance and wide application fields. Their advantages such as efficient drilling, large-diameter drilling, and high-quality sampling make them an ideal choice for deep-hole drilling and drilling in complex geological conditions. With the continuous advancement of technology and the continuous changes in market demand, reverse circulation drilling rigs will develop in a more intelligent, environmentally friendly, and efficient direction, providing strong technical support for global infrastructure construction and resource development. If you are looking for high-performance and highly reliable drilling equipment, reverse circulation drilling rigs are undoubtedly an excellent choice worthy of your attention.【WhatsApp/WeChat/Phone/Skype】+86 136 1385 6800
