Introduction of the YN27J Internal Combustion rock drill machine:
The internal combustion rock drill type YN27J is a very efficient hand held drill machine bulit up with gasoline engine, air pump, rock drill and the rotation plumbum equipment for running or stop. It can be used for breaking, percussive drilling, tamping besides rock.
Rock Drill Type
Overall dimension(L*W*H) (mm)
Type of engine
single cylinder,air cooled two strokes
Displacement of engine piston
Type of carburetor
hand needle valve,no floating type
Controllable silicon contactless system
Diameter of engine piston (mm)
Stroke of engine piston (mm)
Rotating speed of engine (r/min)
Rotating speed of drilling rod (r/min)
Oil consumption (L/m)
Tank capacity (litre)
Max.drilling depth (m)
Shank size (mm)
Mixing ratio of gasoline and lubrication oil (in volumes)
Clearance of Spark plug
•Needless to replace the internals of the engine head, just handle the handle to operate it.
•Easy to operate. More time-saving and effortless. Drilling faster and more efficient.
•Have reached the Tip-top level of the same field now, and allow to be replaced with the same kind of the domestic products.
Available for drilling, splitting breaking, ramming, shovelling. And widely used in mining,road-construction, quarrying and national defense construction, etc.