The internal combustion rock drill type YN 27C is a hand-operated rock drilling tool, composed of a small petrol engine, an air compressor and a rock drill. It is available for drilling, splitting breaking, ramming, shoveling. And widely used in mining, road-construction, quarrying and national defense construction.
The internal combustion rock drill type YN 27C is a hand-operated rock drilling tool, composed of a small petrol engine, an air compressor and a rock drill. It is available for drilling, splitting breaking, ramming, shoveling. And widely used in mining, road-construction, quarrying and national defense construction.
1.Engine:The engine is a hand operated,single cylinder and two stroke petrol engine with air cooling, reflux air conversion, no contact ignition, and no floating-type carburetor It is composed of control parts, starter parts, oil tank parts, flywheel parts, crankshaft, connecting rod, crankshaft case parts, shield parts, magneto parts and piston parts and cylinder parts.
2.Air compressor: The engine piston and hammer piston are mounted separately in the upper and lower place of the cylinder. These two positions move up and down synchronously. The hammer piston and the bigger bore of the cylinder form a compression chamber, which together with air inlet and outlet valves and ventilator valves, form the air compressor. It is composed of hammer piston parts and cylinder parts.
3.Rock drill: It is composed of hammer piston parts, rotation mechanism parts, drill shank housing parts.
Features：
1.Easy to operate. More timesaving and effortless. Drilling faster and more efficient.
2. Very compact structure, Less of the-easy-to-damage-parts, very easy to control. It can adapt to these outside situations there is no water and no electronic power.
3. It is a Kind hand held drill built up with gasoline engine, Air pump, rock drill and the rotation plum bum equipment for running or stop.
4. It can be used for breaking, drilling, blasting, tamping splitting and ramming.
| Type | YN27C |
| 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, float less type |
| Ignition system | controllable silicon, contactless system |
| Drilling speed (mean value of five holes) | ≥250mm/min |
| Drilling hole diameter | 28-42mm |
| Max drilling depth | 6m |
| Fuel consumption | ≤0.12L/m |
| Tank capacity | ≥1.5liter |
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