Underground RC Drilling

Underground Reverse Circulation (RC) Drilling Equipment

As Australia’s market leader in manufacturing premium quality reverse circulation (RC) drill rods and drilling consumables, we’re working closely with underground RC drillers and their clients to ensure smooth continuity at their mining operations.

Quickly growing in popularity, underground RC drilling provides a route to increasing sampling density and volume, resulting in a much faster and cheaper alternative to diamond drilling.

Harlsan can provide a suite of tough underground RC drilling supplies and consumables specifically designed for underground mining to keep you drilling for longer.

The Benefits of Utilising Underground RC Drilling

Traditionally, with diamond drilling, sample volumes are not large enough to provide a reliable grade estimate of the area surrounding the drill hole. If your underground operation permits it, RC drilling offers a number of significant benefits over diamond drilling:

The 6 Benefits of Underground RC Drilling

  • Faster than diamond drilling
  • Cheaper than diamond drilling
  • Larger sample volume
  • Less downstream core processing
  • Increase sample density


“Reverse circulation drilling has proved to be an effective means of providing large representative and high quality samples in open pit gold mines for over three decades. Applying this drilling methodology to underground grade control at Sunrise Dam has demonstrated that it can be as effective as surface RC for defining ore.”

Carswell & Clark 2013

Designed and field tested for the toughest of reverse circulation drilling conditions. Get a boost in production and reduce downtime with a Harlsan Blow Down on your rig.

Harlsan Expert Assist

The demands of the Reverse Circulation Drilling Industry are constantly changing. What your client wants today is not necessarily what they will need tomorrow. To help adapt to these changes it makes sense to use a supplier that can give you practical advice on the best application of RC products.

Contact Us

Ordering Information

From Africa through to Asia, Eastern Europe through to the UK, and Canada through to South America. We can supply you with robust and productive RC drill rods and drill pipe.

You can depend on us

For pricing, immediate supply or customised orders
Call (08) 9021 1288 (+61 8 9021 1288 international).

Get your engineering component and part supply requirements on time, on budget and on track with Harlsan manufacturing services. Call us now and request for a quote.

Your Key Contacts

Matt Bevan

Sales Manager for Harlsan component and part manufacturing

Harley Hollier

Technical Director for manufacturing and application engineering.

Avatar for Dean Hollier
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