Instruction

    Internal Combustion Rock Drill Type YN 27C has functions of drillhole,cleavage, bruising, tamping and chiseling. It is widely used in mine, road construction,quarrying, national defence works, etc.

Specification

Weight of main machine	27 kg
Type of carburetor	Hand needle valve, no floating type
Ignition system	Controllable silicon  contactless system
Displacement of engine piston	185 cm3
Rotating speed of engine	≥2450 r/min
Rotating speed of drill rod	≥200 r/min
End of drill rod dimensions	Hexagonal 22x108 mm
Max drilling depth	6 m
Tank capacity	1.14 L
Drilling speed	≥250mm/min
Mixture ratio of gasoline and lubricating oil(in volumes)	12:1
Clearance of spark plug	0.5-0.7 mm