Ordering by number: this is 3111001200, the Atlas Copco main valve. Cycle timing runs through this component. Because it shuttles on every blow, it accumulates cycles faster than almost anything else in the rock drill.
Crowder’s breakdowns list this part on the BBD 12D DS Rock Drill.
Use the full diagram library to work through the rest of the assembly, or the Atlas Copco tool range if you are pricing a replacement machine. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 3111001200
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3111001200
- Listed on breakdowns for: BBD 12D DS Rock Drill

