Internal combustion rock drilling

Detailed Product Description

YN27 is same with YN27A:

 

Advantages:

• YN27 hand hold internal-combustion rock drill is a hand-rock drilling tool which integrates the small gasoline-engine, compressor and rock drill.
• It can blow off the rock powder in the blast hole by the compressing air generated from it.
• Just 27kg weight for the main engine. Easy to carry about. Applicable for the areas of high mountains and of without power and wind pressure equipment, especially for those temporary projects with frequent movement.

Applications:
1. Applicable for rock drilling and drilling holes. 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 + 40 and bitter cold area of -40, 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	Automatically lubricated with gasoline and engine oil
Mixing proportion of gas and lubrication(by capacity)	12:1
spark plug electrode gap	0.5-0.6mm