Air-leg
Rock Drill Model 7655 & YT27
YT27
The Air-leg Rock Drills Model 7655 & YT27 are widely used for rock drilling operations in mine, railway, water irregation works and national defence projects.
| Model | 7655 | YT27 |
| Weight | 24kg | 26kg |
| Outer dimensions(L*B*H) mm | 628x232x207 | 668x248x202 |
| Air hose ID | 25mm | 25mm |
| Water hose ID. | 13mm | 13mm |
| Shank dimensions | B22*108mm | B22*108mm |
| Matching air-leg | FT160A, FT160B | FT160A, FT160B |
| Matching line oiler | FY200A | FY250 |
| When working air pressure is 0.49MPa. | ||
| Blow energy | 58.8J | 63.7J |
| Blow frequency | 35Hz | 36.6Hz |
| Air consumption | 53.3L/s | 55L/s |