Rock drills medium range
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.
Technical specifications
|
Rock drill type |
Underground rock drill |
|
Hole range |
27 mm - 41 mm |
|
Weight |
27 kg |
|
Length |
670 mm |
|
Air consumption |
97 l/s |
|
Impact rate |
3 300 blows/min |
|
Piston diameter |
90 mm |
|
Stroke length |
45 mm |
