YN27 Gasoline Jack hammer

1.Gasoline jack hammer 2.Portable and convenient 3.Perfect Leg-Drill Balance 4.High Drill Speed 5.Stable performance

YN27 Gasoline rock drill

It handles time-consuming manual work in a matter of minutes, it is a portable rock-drilling tool, combined of a small petrol engine, an air compressor and a rock drill. During operation, rock powder is blown away by the compressed air produces by the machine itself. and it can do many types of jobs using over 20 different types of tools and special accessories.

Handles made of vibration-absorbing material to suppress high-frequency vibration.

Fully adjustable choke.

High performance air filter for long service.

Power take-off for accessories (e.g. pump, vibrator, drill steel grinder).

CDI (breakerless) ignition without moving parts to make staring easy.

Optional anti-vibration version of both machines.

Weight of main machine………………….27kg   

Overall dimensions……………………….746*315*229mm

Type of engine…………………………….single cylinder, air cooled two strokes.

Cylinder diameter*stroke of piston……..58*70mm     

Rotating speed of engine……………….≥2450r/min

Displacement of engine piston…………185cm3

Type of carburetor……………………….hand needle valve,floatless type

Ignition system……………………………controllable silicon, contactless system

Drilling speed (mean value of five holes)…..250mm/min

(After holing, drill diameter 34mm with drill rod of 600mm in length, is drilled vertically downward into medium hard granite(F=8-12) to make five holes in succession. The mean value of the five holes is counted as the speed.)   

Drilling hole diameter………. ¤28mm-42mm

Max drilling depth…………………………6m

Fuel consumption………………………..≤0.12L/m

Tank capacity……………………………..≥1.5litre

Mixture ratio of gasoline and lubrication oil (in volumes)………..12:1

End of drill rod dimensions……………..hexagonal 22*108mm

Rotation speed of drill rod………………≥200 rounds/min

Clearance of spark plug…………………0.5-0.7mm.

YN27 Gasoline Jack hammer