Model Number

YN27

Advantages:

YN27 handhold internal-combustion rockdrill is a hand-rockdrilling tool which integrates the small gasoline-engine,compressor and rockdrill.
It can blow off the rock powder in the blasthole by the compressing air generatedfrom itself.
Just27kg weight for the main engine . Easy to carry about.Applicable for the areas of high mountains and ofwithout power and wind pressure equipment,especially for those temporary projects with frequent movement.
Applications:
1. Applicable for rock drilling and breaking.Widely used in the earth and stone work of national defense,mining,road-construction,city construction and quarrying,etc.

2. Wide applicability. Regardless of the high mountains,flat grounds,the extremely hot area with the temperature of + 40ºC and bitter cold area of -40ºC,it can work in good condition.

Technical specifications:

Weight of the main engine:27kg

Type of carburetor:Non carburetor float

Ignition system:Contactless

Exhaustion:185cm³

Rotating speed of engine with load (measured in five holes drilling):≥2450r/min

Idling rotating speed of drill rods:≥250r/min

End of tool shank hex:22*108mm

Shock energy:≥25J

Max. elevation angle of drilling:45°

Max. drilling depth:≥6m

Tank volume:≥1.1L

Oil consumption(in five holes drilling):≤0.12L/m

lubrication: Automaticly lubricated with gasolineand engine oil

Mixing proportion of gas and lubrication(by capacity):12:1

spark plug electrode gap :0.5-0.6mm