1 YN27 petrol rock drill
2 max drilling depth: 6m
3 drilling hole diameter: 28-42mm
4 Less of easy-to-damage-par
YN27 series petrol rock drill
The Internal Combustion Rock Drill Type YN27 J is a very efficient machine with the characters of the structure is very compact, less of the- easy-to-damage-parts, and very easy to control. It can adapt to these outside situations there is no water and 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.
| Technical specifications |
| Weight of main machine |
27kg |
| Overall dimensions(L*W*H) |
746*315*229mm |
| Type of engine |
Single cylinder, air cooled two strokes |
| Cylinder diameter*stroke of piston |
Φ58*70mm |
| Rotation speed of engine |
≥2450rpm |
| Displacement of engine piston |
185cm³ |
| Type of carburetor |
hand needle valve, floatless type |
| Ignition system |
controllable silicon, contactless system |
| Drilling speed (mean value of five holes) |
≥250mm/min |
| Drilling hole diameter |
Φ28-42mm |
| Max drilling depth |
6m |
| Fuel consumption |
≤0.12L/m |
| Tank capacity |
≥1.5liter |
| Mixture ratio of gasoline and lubrication oil (in volumes) |
12:01 |
| Drill rod and breaker shank |
Hex22*108mm |
| Rotating speed of drill rod |
≥200rounds/min |
| Clearance of spark plug |
0.5-0.7mm |
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