The Atlas Copco pusher leg is a pneumatic feed leg for BBC series rock drills the BBC 16W and BBC 34W in underground mine and tunnel work. Compressed-air thrust presses the drill into the face so the operator steers orientation and bit advance instead of supplying feed force, turning a heavy drill into a one-person tool for face drilling and rock-bolt holes. It pairs with the Atlas Copco BBC 16W we stock.
Six part numbers BMK-62S, ALF71, ALF71-1, ALF72D, ALF72D-1 and BMT 51 span current and legacy production generations, so match the number to your existing service inventory when specifying a replacement. The leg runs on the standard Atlas Copco pusher-leg air connection with no separate hydraulic or electric source. Leg-fed drills of this kind live in our jackleg drills category, and the Atlas Copco rock drill brand page collects the rest of the line.
- Fits Atlas Copco BBC series rock drills, including the BBC 16W and BBC 34W
- Compressed-air thrust replaces operator feed force for steady bit advance at the face
- Six configurations: BMK-62S, ALF71, ALF71-1, ALF72D, ALF72D-1 and BMT 51
- Runs on the standard Atlas Copco pusher-leg air connection; no hydraulic or electric supply needed
- Applications: face drilling, rock-bolt holes and overhead anchor work in underground mining and tunneling
- Part numbers track production generations match your existing service inventory when replacing
- Crowder Supply stocks pusher legs and BBC drill replacement parts in Denver



