Reverse Circulation Drilling Rig | RC Drilling Machine { Hot-Sale }

In mineral exploration, environmental monitoring, and large-scale engineering construction, efficiency and data accuracy directly determine the economic benefits and success of the project. YG’s reverse circulation drilling rig is tailor-made to meet these stringent requirements. For mining companies, time is precious, and accurately determining the boundaries and grades of ore bodies is the core goal. With its high-speed drilling capability, the YG reverse circulation drill rig can complete a large number of holes in a short period and speed up the exploration process. More importantly, its unique reverse circulation sampling system can provide high-recovery, low-contamination dry rock cuttings samples, which can more accurately reflect the real geological conditions, thereby improving the reliability of geological modeling and resource estimation, and significantly reducing exploration risks and potential investment mistakes. If you are also interested, please get in touch with us now to get more product information.【WhatsApp/WeChat/Skype/Phone】+86 136 1385 6800

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Reverse Circulation Drilling 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

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Reverse Circulation Drilling Rig Working Principle

Unlike conventional positive circulation drilling (drilling medium flows down from the inside of the drill pipe and returns from the annulus carrying cuttings), reverse circulation drilling works oppositely. It mainly relies on high-pressure air (or a small amount of water/mud) as the circulating medium.

In short, high-pressure air is pumped to the drill bit at the bottom of the hole through the outer channel of the double-wall drill pipe. At the bottom of the hole, the air is mixed with the broken cuttings and then sucked to the surface at high speed from the inner channel (center tube) of the double-wall drill pipe. This process is like a powerful “reverse vacuum cleaner”. After the air flow carrying cuttings reaches the ground, it passes through a cyclone separator, where the cuttings are separated by centrifugal force and fall into the sample collection bag, while the air is discharged. This working method ensures the continuous and rapid return of cuttings, avoids the retention or contamination of cuttings in the hole, and thus obtains more accurate samples.

RC Drilling Machine Features

High-efficiency drilling: Powerful power head and optimized drilling parameter design ensure fast and efficient drilling speed in hard rock and complex formations.
Excellent sample recovery rate: Unique reverse circulation principle and efficient sampling system can quickly and completely lift cuttings and samples to the surface, with a high recovery rate and less sample contamination.
Depth and aperture capacity: A variety of models are available to cover different maximum drilling depths and aperture requirements to meet diverse engineering requirements.
Precise system control: Advanced hydraulic and electrical control systems are easy to operate and can accurately control drilling pressure, rotation speed, and feed rate.
Excellent mobility: Crawler or truck chassis can be selected to adapt to different terrains and facilitate rapid transfer to the work site.
Integrated sampling system: Equipped with cyclone separators and sample dividers, dry and representative cuttings samples can be continuously obtained during drilling, which is convenient for geological cataloging and analysis.
Complete safety protection: Operational safety is fully considered in the design, and multiple safety locks and alarm devices are equipped.

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Price and Purchase Information: Learn about the YG Reverse Circulation Drilling Rig for Sale

YG offers a variety of reverse circulation drilling rigs for sale to meet the needs and budgets of different customers. The final price of the equipment will be affected by many factors, including:

Model and specifications of the drilling rig (such as maximum drilling depth, hole diameter)
Chassis type (crawler or truck-mounted)
Equipped air compressor power
Whether customized configuration or additional accessories are required
Transportation distance and tariffs, etc.

As a factory-direct sales, YG can provide you with very competitive prices and ensure that the equipment you purchase is genuine and enjoys perfect after-sales service and technical support.

If you are interested in YG’s reverse circulation drilling rigs and want to know the specific model, technical parameters, or get a detailed quotation, please feel free to contact us. Our professional team will be happy to provide you with consulting services and help you choose the RC drilling rig that best suits your project needs.