The internal combustion rock drill 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 produces by the machine itself.
This machine is a portable machine; it is also can use with supporting stand. Drilling hole diameter 28mm-42mm,when turning vertically down-ward, it can drill to the depth of 6m.
It is easy to be carried along. It is suited to work on high mountains, plains, hot and cold condition with no power, no water supply and no 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 run 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, powder station, geological exploration etc.
Combined Rock drill/breaker.
Self-contained, Gasoline powered Drill and paving Breaker
Double the function......half the cost!
In the drill mode it produces flushing air for cutting removal, impact androtation.
The gasoline powered YN27C is an ideal tool for small drilling andbreaking applications or when working at hard to reach sites. Just flip the selector and you have a breaker with a capacity fully compatible with medium sized pneumatic hammers and drills. Pull the start cord and the YN27C will deliver a full hours effective work for just 0.4 gallons of fuel. It will drill a 3 foot hole in hard granite in only three and a half minutes!
can be used either as a drill or breaker
2 stage fuel system
All metal construction
Washable air filter
Only 4 main moving parts
Vibration reducing handle grips
breaks rock and concrete
|Technical specifications/model YN27C|
|Weight of main machine||27kg|
|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||4625px³|
|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|
|Mixture ratio of gasoline and |
lubrication oil (in volumes)
|Drill rod and breaker shank||Hex22*108mm|
|Rotating speed of drill rod||≥200rounds/min|
|Clearance of spark plug||0.5-0.7mm|