High performance rock drill for soft to hard rock
Short stroke and high impact rate makes it ideal for soft rock
With the pusher leg control placed in back head of the rock drill, they are easy to reach.
Our water flushed, pusher leg mounted rock drills are designed for driving drifts and tunnels with a small cross section. They are intended for use for hole diameter range of 27 to 41 mm (1-1 5/8 in) with Hex 22 (7/8”) rotation shank as a standard. When used with Atlas Copco tapered button bits, penetration rate will improve some 25-50 percent compared to conventional integral steels. And they have three to five times longer service life.
Rock drill type |
Underground rock drill |
Hole range |
27 mm - 41 mm 1 inch - 1.6 inch |
Weight |
27 kg 59.5 lb |
Length |
670 mm 26.4 inch |
Air consumption |
97 l/s 206 cfm |
Impact rate |
3,300 blows/min |
Piston diameter |
90 mm 3.54 inch |
Stroke length |
45 mm 1.77 inch |
Vibration level 3 axes (ISO 5349-2) |
15 m/s² |
Sound power level guaranteed (2000/14/EC) |
120 Lw. dB(A) |
Sound pressure level (ISO 11203) |
109 Lp. dB(A) |
Shank size: Hex |
22x108 mm - 7⁄8 x 41⁄4 inch |
Hex 22x108 - ⅞ x 4 ¼ inch |
8311 0303 44 |
Contact us
Atlas Copco Ltd Swallowdale Lane, Hemel Hempstead, Hertfordshire, HP2 7EA