Internal Combustion Rock Drill Type YN27C can adapt to these outside situations there is no water and no electronic power. It is a Kind hand held drill built up with gasoline engine, Air pump, rock drill and the rotation plumbum equipment for running or stop. It can be used as a tool for breaking, percussive drilling, tamping besides rock Drilling.
Specification
| Weight of main machine | 27 kg |
| overall dimensions | 746X315X229mm |
| type of engine | single cylinder,air cooled two strokes |
| cylinder diameterxstroke of pistion | 58x70mm |
| rotating speed of engine | ≥2450 r/min |
| Displacement of engine piston | 185 cm3 |
| Type of carburetor | Hand needle valve, no floating type |
| Ignition system | Controllable silicon ,contactless system |
| Drilling speed | ≥250mm/min |
| Max drilling depth | 6 m |
| fuel consuption | ≤0.12 l/m |
| Tank capacity | ≥1.14L |
| Mixture ratio of gasoline and lubricating oil(in volumes) | 12:1 |
| End of drill rod dimensions | Hexagonal 22x108 mm |
| Rotating speed of drill rod | ≥200 r/min |
| Clearance of spark plug | 0.5-0.7 mm |
