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Internal combustion coal mining rock drill
Applications:
With turning the swing arm to running-or-stop rotation plumbum, the machine can be converted into a breaker or a hammer, for breaking, digging, splitting or ramming. The machine is suited to build of bridge, road, power station, geological explortation etc.
Rock Drill Introduction:
The internal combustion gasoline rock drill model YN27C is a portable rock drilling tool, combined of a small petrol engine, an air compressor and a rock drill. During operation, rock powder is blown away by the compressed air produced by the machine itself.it also can be used with supporting stand.
It is easy to be carried with its light weight,and suitable for working on high mountains, plains, hot and cold condition where there is no any of power, water supply and air compressing equipments. Especially, suits the projects that the machine has to be carried at any time and in any area.
With turning the swing arm to running-or-stop rotation plumbum,the machine can be used as a tool for breaking, percussive drilling, tamping besides rock Drilling.it is suitable to build bridge, road, powder station, geological exploration etc.
Rock Drill Parameter:
| Technical specifications/model YN27C | |||||
| Weight of main machine | 27.5kg | ||||
| Overall dimensions(L*W*H) | 745*305*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 | 28-42mm | ||||
| Max drilling depth | 6m | ||||
| Fuel consumption | ≤0.12L/m | ||||
| Tank capacity | ≥1.5liter | ||||
| Mixture ratio of gasoline and lubrication oil (in volumes) | 12:1 | ||||
| Drill rod and breaker shank | Hex22*108mm | ||||
| Rotating speed of drill rod | ≥200rounds/min | ||||
| Clearance of spark plug | 0.5-0.7mm | ||||
Rock Drill Real Photos: 
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