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Images of SmartROC CL at work in a mine or quarry

Product description

COPROD leads the way


COPROD combines a threaded drill tube with an unthreaded drill rod. The drill tube transmits rotation, while the impact rod, fit in floating suspension inside the tube, transmits impact energy and feed force.


The flushing air passes between the tube and the rod, through the bit rod, to the front of the drill bit.


When the COPROD sections are joined, the impact rods stand on top of each other inside the drill tube.


This means that the impact energy is directly transmitted to the rock mass without passing a single thread. The result is superior energy transmission, reduced fuel consumption and minimized wear on the drill string.


The Epiroc COPROD product range consists of two surface drill rigs.


SmartROC C50

SmartROC C50 is the smaller of the two drill rigs. For this drill rig, three drill strings are available: COPROD 76 mm, 89 mm and 102 mm giving blast holes ranging between 90-140 mm in diameter.



The larger drill rig, SmartROC CL can be equipped with COPROD 102 mm, 127 mm or 140 mm drill strings. This means SmartROC CL can drill 115 mm-216 mm blast holes.

Quick facts


COPROD Drill string
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COPROD drill string instruction video


COPROD head, assembly and disassembly


COPROD section, assembly and disassembly