| TECHNICAL SPECIFICATIONS | |
| Weight of main machine | 27 kg |
| Type of carburettor | Hand needle valve, no floating type |
| Ignition system | Controllable silicon , contact less system |
| Displacement of engine piston | 185 cm3 |
| Rotating speed of engine | ≥2450 r/min |
| Rotating speed of drill rod | ≥200 r/min |
| End of drill rod dimensions | Hexagonal 22×108 mm |
| Max drilling depth | 6 m |
| Tank capacity | 1.14 L |
| Drilling speed | ≥250mm/min |
| Mixture ratio of gasoline and lubricating oil (in volumes) | 12:1 |
| Clearance of spark plug | |
Combustion Rock Drill YN27C:
Combustion Rock Drill Type YN 27C Gasoline Rock Drill
Internal Combustion Rock Drill Type YN 27C has functions of drilling hole, cleavage, bruising, tamping and chiseling. It is widely used in mine, road construction, quarrying, national defense works, etc
