RH 656W: Pusher leg rock drill (soft to medium hard rock) - Atlas Copco Lebanon

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RH 656W: Pusher leg rock drill (soft to medium hard rock)

8311 0303 45

Atlas Copco water flushed, pusher leg mounted rock drills are designed for driving drifts and tunnels with a small cross section. These well-proven rock drills are recognized for their high performance and reliability. 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% compared to conventional integral steels and have three to five times longer service life. This cost-efficient, entry-level rock drill offers a good balance between low air consumption and high penetration. Supplied with a T-handle, the RH 656W can also be used as a sinker drill.


Features & benefits

  • Suitable for soft to medium hard rock
  • Good ratio between high penetration/low air consumption
  • Due to low weight, it can also be used as a sinker. Supplied with T-handle
  • Robust rifle bar rotation mechanism
  • Pusher leg control is placed on the pusher leg

Applications

  • Production drilling
  • Mining and construction
  • Dimension stone industry

Applications

  • Drills up to 6 m depth
  • Production drilling in quarry/dimension stone industry
  • Blast hole and secondary drilling

Technical data

Technical Specifications
Rock drill typeUnderground rock drill
Rock drill versionPusher leg rock drill
Weight22 kg
Length658 mm
Air consumption48 l/s
Impact Rate2040 blows/min
Piston diameter65 mm
Stroke length59 mm
Largest reaming diameter76 mm
Hole diameter27 - 41 mm
Vibration level 3 axes (ISO 5349-2)*21.2 m/s²
Shank Size (mm)22x108
Shank Size (inch)7/8x4 1/4
Suitable pusher leg
Pusher leg rock drillBMK 62 S

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