Harlsan > urethane seals Urethane seals in comparison to o-rings? Hard wearing urethane seals give significant production benefits & cost savings over the O-Ring system in RC drill strings and are fast becoming the standard for RC Drilling. Urethane seals in...
Air Core Bits and Hard Bands of Strata The efficiency of an air core drilling program in certain ground strata can be improved with the right equipment and people. The efficiency of an air core drilling program in certain ground strata can be improved with the right...
Basics of Reverse Circulation (RC) Drilling – What is RC Drilling? Reverse Circulation, or RC, drilling uses drill rods with inner and outer tubes & is sometimes referred to as Dual wall or Dual Tube Drilling. Reverse circulation is achieved by blowing air down...
Harlsan Harlsan Makes Purchasing RC Gear Easy We will raise the standard in what you can expect from a supplier. You want a supplier who gets it right, who can give help and advice on product selection if you want it, who makes reordering simple, quick and easy....
Harlsan Why Purchasing for Remote Sites Is Easy The right gear, to the right place, on time. By nature nearly all RC Drilling is done in remote sites. No matter where you are drilling nothing is more critical than keeping your rig running and to do that you need a...
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