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Maxdrill’s YT27 air leg rock drills are a new type of rock drills that is high efficient in wet drilling horizontally or at a tilting angle in medium and hard rocks. It has a wide range of applications of mine tunnel excavation, railway building, water engineering and defense earthworks.
YT27 air leg rock drill matches lubricator FY250 and air leg FT160A (or FT160B), or can be fixed in rigs after the air leg is removed.
| Weight (kg) | 27 | |
| Dimension (L × W × H mm) | 668×248×202 | |
| Cylinder Diameter（mm） | 80 | |
| Piston Strokes (mm) | 60 | |
| Impact frequency (Hz) | ≥36.9 | |
| Impact energy (J) | ≥75.5 | |
| Air consumption (L/s) | ≤83.3 | |
| Air hose inner diameter (mm) | 25 | |
| Water hose inner diameter (mm) | 13 | |
| Working pressure (Mpa) | 0.63 | |
| Water pressure (Mpa) | 0.3 | |
| Drilling diameter (mm) | 34-45 | |
| Max drilling depth (m) | 5 | |
| Shank (mm) | 22×108±1/25×108±1 | |
| Lubricator FY250 | ||
| Weight (kg) | 1.2 | |
| Capacity (L) | 0.25 | |
| Air leg | ||
| Model No. | FT160A | FT160B |
| Weight (kg) | 17 | 16 |
| Length extended (mm) | 3006 | 2526 |
| Length retracted (mm) | 1668 | 1428 |
| Feeding length (mm) | 1338 | 1098 |
| Maximum feed force (N) | 2000 | 2000 |
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