The stoper provides short stroke with good penetration rates. The large piston diameter gives high efficiency even at low air pressure.
Production drilling, raise driving and bolting in soft to medium hard rock.
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.
Rock drill type |
Underground rock drill |
Hole range |
27 mm - 41 mm 1 inch - 1.6 inch |
Weight |
39 kg 86 lb |
Length retracted |
1,435 mm 56.5 inch |
Length extracted |
2,205 mm 86.8 inch |
Air consumption |
75 l/s 159 cfm |
Impact rate |
3,000 blows/min |
Piston diameter |
75 mm 3 inch |
Stroke length |
45 mm 1.77 inch |
Vibration level 3 axes (ISO 20643) |
10 m/s² |
Sound power level guaranteed (2000/14/EC) |
124 dB(A) |
Sound pressure level (ISO 11203) |
121 Lp. dB(A) |
Shank size: Hex |
22x108 mm - 7⁄8 x 41⁄4 inch |
Hex 22x108 - ⅞ x 4 ¼ inch |
8311 0202 29 |
588, Block H3, Abdul Haque Road, opposite Emporium Mall,
Johar Town, Lahore, Pakistan
Email: constructionpk.info@pk.atlascopco.com
UAN: +92 42 11 11 ATLAS (28527)
Phone: +92 (0) 321 877 5516-7