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By certification 
YN27C Hand held rock drill
The machine is mainly used in samll quarries,small coal mines and limestone mines for drilling,blasting for constructing roads in mountain areas,also in the capital construction for water conservancy works.it is suitable for drilling works in large mines for boulder blasting and other projects as well. it can perform dry drilling under various kinds of rocks ,the function will be better than others.
It has many advantages such as reasonable in structure,quick in starting ,light in weight ,fast drilling speed,smaller vibration,easier operation,lower trouble rate,long-life parts,good economic effect,ect.it is also equipped with a rubber damping handle,so is eary to operate and provide the operators with necessary working protection.
Weight of the main machine: |
27kg |
Overall dimension: |
746×315× 229mm |
Type of engine： |
Single cylinder,air cooled two strokes |
Cylinder Diameter×Stroke of piston: |
58 × 70mm |
Rotating speed of engine: |
≥2450r/min |
Displacement of engine piston: |
185cc |
Drilling speed:(mean value of five holes) |
≥ 250mm /min |
Max. drilling depth: |
≥ 6m |
End of drill rod dimensions: |
hexagonal 22 × 108mm |
http://www.rockdrillatlas.com/
