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 blasthole by the compressing air generated from itself.

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 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 ?,it can work in good condition.

TECHNICAL SPECIFICATIONS 

1.Weight of the main machine: 27kg

2.Overall dimension: 746×315× 229mm

3.Type of engine:single cylinder,air cooled two strokes

4.Cylinder Diameter×Stroke of piston:5 8 × 70mm

5. Rotating speed of engine: ≥2450r/min

6.Displacement of englne plston: 185cm 3

7.Type of carburetor: hand needle valve,no floating type

8.Ignition system: Controllable silicon contactless system

9. Drilling speed:(mean value of five holes) ≥ 250mm /min

10. Max. drilling depth: ≥ 6m

11.Fuel consumption: 0.122 /m

12.Tank capacity:≥ 1.14L

13. Mixing ratio of gasoline and lubrication oil (in volumes)12:1

14. End of drill rod dimensions: hexagonal2 2 × 108mm

15. Rotating speed of drill rod:≥200r/min

16. Clearance of Spark plug :0.5 -0.7mm