Primary Features:
Superior Sample Quality and Integrity: The defining feature is its closed-loop system.

Drill cuttings are transported to the surface inside the inner tube of the dual-wall drill rods. This minimizes contamination from the borehole walls or collapsing materials, providing highly representative and uncontaminated samples from the target depth.
 

Enhanced Drilling Efficiency and Penetration Rates: By utilizing a down-hole hammer powered by high-pressure air, the RC rig achieves rapid penetration in hard rock formations.  The air not only drives the hammer but also effectively clears the cuttings, leading to faster drilling progress and reduced downtime.
 

Continuous and Large-Volume Sampling: The system produces a continuous

stream of coarse, chipped samples.  These samples are collected in large bags

or drums at regular intervals (typically every meter), creating a precise and reliable

depth-correlated record of the subsurface geology.
 

Excellent Operational Safety and Dust Control: The closed circulation path significantly reduces dust emissions at the drill site compared to conventional open-hole methods.  This creates a safer working environment for the crew and minimizes the environmental impact.
 

Cost-Effectiveness in Various Terrains: RC drilling is often faster and more economical

than diamond core drilling for initial resource definition.  It is highly effective in

fractured, unstable, or weathered rock formations where core recovery with other methods can be poor.
 

Versatility and Reliability: Modern RC rigs are designed to be robust and mobile,

capable of operating in remote and challenging terrains.  They are the preferred tool

for large-scale exploration programs, blast hole drilling, and resource evaluation where high-quality, bulk samples are required.

The Dual-Wall Drill Rod Reverse Circulation (RC) Core Drill is a highly efficient drilling

system engineered for superior sample integrity in geological exploration and mineral prospecting.

Its core technology utilizes dual-wall drill rods, consisting of an inner and an outer tube.

During operation, compressed air or fluid is pumped down the annulus between the two

tubes, driving the drill bit. The resulting cuttings are then forced up through the inner

tube in a continuous, sealed flow.

 It employs a reverse circulation system that ensures minimal contamination and high

sample recovery by using dual-wall drill rods. Compressed air circulates cuttings to

the surface through the annular space, providing continuous, representative core samples for analysis. Ideal for mineral exploration, this drill offers rapid penetration, depth capability, and reliable performance in varied terrains, making it essential for assessing gold deposit potential.