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| Y20LY Air leg rock drill | |
| Weight | ≈18kg |
| Length | ≈609mm |
| Cylinder dia. | 60mm |
| Piston stroke | 50mm |
| Air pressure | 0.4Mpa |
| Impact frequency | ≥30Hz |
| Air pipe inner dia | 16 or or19mm |
| Water pipe inner dia | 8mm |
| Air consumption | ≤25 L/S |
| Shank dimension | 22×108mm±1mm |
| Bit dimension | 34- 40mm |