Reverse Circulation Rotary Drilling

Reverse Circulation Rotary Drilling is based on a dual pipe system. Between the inner and outer tubes, air enters the reverse circulation hammer. Through the inner pipe, cuttings are gathered before going through a swivel and into a cyclone. The splitter is used to obtain a representative sample. The samples are kept dry, which makes analysis easier, by completely sealing off the reverse circulation drill bit from the rest of the hole.

Reverse Circulation Rotary Drilling is a drilling method in demand for use throughout the world. It is known for its cost structure, meter rate drilled, speed, maintained accuracy and sampling efficiency.

As a pioneer in the design and manufacturing of down-the-hole equipment and sample systems, LEANOMS is a leading provider of reliable and cost effective Reverse Circulation Rotary Drilling solutions.

We can provide a complete solution, including drilling rig, drill string, compressor and booster. As a one-stop-shop for rc drilling tools, we can ensure optimum system performance and maximum drilling productivity, whether in greenfield exploration or in pit grade control.

Best performance in all rock formations

The Reverse Circulation Rotary Drilling's high frequency together with a high mass piston provides a high output of power, ensuring cutting edge performance and excellent rate of penetration.

In Reverse Circulation Rotary Drilling, the rock is dried out with compressed air ahead of the drill bit.  The bit contains an inner tube that delivers dried rock chips up to the surface of the column of compressed air.  These chips are sent through a diverter at the top of the column, traveling through a sample hose to collect in a sample bag.  This makes it easy to collect samples classified by depth.