The stoper provides short stroke with good penetration rates. The large piston diameter gives high efficiency even at low air pressure.

When you do

Production drilling, raise driving and bolting in soft to medium hard rock.

High quality

Designed for production drilling


Stopers are made for vertical or inclined environments. The machines are especially designed for production drilling, raise driving and roof bolting. Thanks to the ratchet wheel rotation and short piston stroke you get good penetration rates in soft and medium hard rock.
The WR versions has clockwise rotation and can be used for tightening or installing screen on threaded roof bolts.

Technical specifications

Technical details

Rock drill type

Underground rock drill

Hole range

27 mm - 41 mm


39 kg

Length retracted

1 435 mm

Length extracted

2 205 mm

Air consumption

75 l/s

Impact rate

3 000 blows/min

Piston diameter

75 mm

Stroke length

45 mm
Vibration and sound
Available shank size
Part numbers