China Internal Combustion Rock Drill Yn27c Yn27t Yn27j Yn27A

Internal Combustion Rock Drill has functions of drilling hole, cleavage, bruising, tamping and chiseling. It is widely used in mine, road construction, quarrying, national defense works, etc.

TECHNICAL SPECIFICATIONS

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