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BBD 46WS-6 Silenced Stoper Drill

Atlas Copco Stopers are all-steel rock drills designed for production drilling, raise driving and roof bolting. They have a ratchet wheel rotationand and a short piston stroke for good penetration rates in soft and medium hard rock. Air blowing through the chuck when drilling, cleans the rotation chuck and lubricates the drill steel shank. The WR version has clockwise rotation and can be used for tightening or installing screen on threaded roof bolts. The BBD 46WS provides a high impact rate for good performance in soft to medium rock.

Features & benefits

  • High quality, designed for production drilling
  • Clock wise rotation for bolting (BBD 46 WR)


  • Raise driving
  • Bolting
  • Screening

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AC-8311020203 $QUOTE
Rock Drill Type Underground Rock Drill
Rock Drill Version Standard
Weight (lbs) 86
Length Retracted (in) 56-12
Length Extracted (in) 86-2532
Air Consumption (cfm) 191
Impact Rate (blows/min) 3000
Piston Diameter (in) 2-1516
Stroke Length (in) 1-34
Hole Diameter (in) 1 - 1.6
Vibration Level 3 Axes (ISO 28927-10) 10 m/s2
Sound Power Level Guaranteed, Lw (2000/14/EC) 124 dB(A)
Sound Pressure Level (ISO 11203) Lp, r=1m 121 dB(A)
Shank Size (in) 78 x 4-14
Tapered Drill Steel
Tapered Rock Bits
Spart Parts List
Safety and Operating Instructions
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