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.
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Rock drill type |
Underground rock drill |
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Hole range |
27 mm - 41 mm |
|
Weight |
28,5 kg |
|
Length |
710 mm |
|
Air consumption |
69 l/s |
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Impact rate |
2 340 blows/min |
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Piston diameter |
70 mm |
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Stroke length |
55 mm |
