Reverse Circulation (RC) drilling is used to collect mineral and rock samples quickly and efficiently using a large rotary drill and air compressor. Reverse Circulation (or RC) drilling is one of the most frequently used methods of drilling used across the world as it is more cost effective and efficient then other methods of drilling.

Reverse Circulation (RC) drilling is used to collect mineral and rock samples quickly and efficiently using a large rotary drill and air compressor.

Sandvik Mining and Rock Solutions is introducing a new reverse circulation (RC) sampling option for its Leopard DI650i down-the-hole (DTH) drill rig. The new RC drilling system offers a reliable and accurate method for ore body identification and grade control in opencast mining.

A diamond rig should produce intact rock core which can be examined and orientated for geological features, whereas an RC rig just produces rock chips. For geo information a diamond rig is far more reliable, but more expensive.

Reverse Circulation (RC) drilling is a quick drilling method used in mining exploration for evaluating chip samples and gathering preliminary geological data. Generally conducted prior to diamond core drilling programs, it is possible the drill to 500m depths utilizing RC drilling, with typical depths of 100 to 250m.

The Standard Penetration Test (SPT) is a widely used geotechnical test used to estimate soil strength.

SPT Energy Calibration consists of measuring the energy transferred by the Standard Penetration Test (SPT) hammer to the SPT rod. GRL Engineers take these measurements with the Pile Driving Analyzer® (PDA) and using an SPT rod instrumented with strain gages and accelerometers. Roschen Engineers may also estimate soil setup by conducting a torque test on the instrumented SPT rod.

The Standard Penetration Test (SPT) is a widely used geotechnical test used to estimate soil strength. A SPT hammer drives a split barrel sampler at the bottom of a drive rod and recovers soil samples.

Polycrystalline Diamond bits that use larger cylindrical shaped cutters that consist of a layer of micron-sized synthetic diamond particles that are mounted on a tungsten carbide substracte.

Surface set diamond bits offered by us have specific applications in soft to medium hard formations. These surface set coring bits are produced using large diamonds that are individually embedded in the matrix. The mold then is subject to a thermal treatment making sure the metallurgical bond of the matrix on to the steel blank.