-Power Extractor allows the rock drill piston to hit the shank during pull back (percussive stress waves transmitted to the drill rods.

-Improve productivity by help to remove rod(s) from the hole in case of jamming.
-In Production drilling, ease rods uncoupling.


Fractured and heterogeneous ground, poor flushing quality, cross drilling, or worn out rock tools can lead to drilling rod jamming, And It is quite hard work to recover from the jamming and it robs your job and production of expensive and valuable time.

In production drilling, one of the major loss of production cause could be the difficulty to uncouple efficiently the rods.

In order to solve these issues and preserve the productivity, Sandvik has developed the Power Extractor system.
Power Extractor is a module for a hydraulic rock drill, operated by a switch on the operator’s control panel. A hydraulic actuator mounted on the front end of the rock drill gear housing, by multiple (small) pistons, is able to pull the shank adapter towards the striking point, so that the piston can hit the shank during pull-back. Percussive stress waves can therefore be transmitted to the drill rods.

Power Extractor is very efficient when the drill string are jammed so tight that it can not be removed by only using feed, rotation and percussion.

Use of Power Extractor for uncoupling rods makes easier and faster the opening of joints. It reduces the non-drilling time, increases drilling capacity and rock tool service life and reduces rock drill maintenance cost.

Application area

Productivity improvement

Underground drill rigs & Bolters

Sandvik DD210L, Sandvik DD211L, Sandvik DD220L, Sandvik DD310, Sandvik DD311, Sandvik DD320, Sandvik DD321, Sandvik DD410, Sandvik DD411, Sandvik DD420, Sandvik DD421, Sandvik DD422i, Sandvik DD422iE, Sandvik DL210, Sandvik DL230, Sandvik DL230L, Sandvik DL2710, Sandvik DL2711, Sandvik DL2720, Sandvik DL2721, Sandvik DL310, Sandvik DL311, Sandvik DL320, Sandvik DL321, Sandvik DL330, Sandvik DL331, Sandvik DL410, Sandvik DL411, Sandvik DL420, Sandvik DL421, Sandvik DL422iE, Sandvik DL430, Sandvik DL431, Sandvik DL432i