Small Rock Drilling Machine YN27C Hand Held Internal Combustion Gasoline Rock Drill
1.Engine:
The engine is a hand operated,single cylinder and two stroke petrol engine with air cooling,reflux airconversion,no contact ignition,and no floating-type carburetor.It is composed of control parts,starter parts,oil tank parts,flywheel parts,crankshaft,connecting rod,crankshaft case parts,magneto parts,and piston parts and cylinder parts.
2.Air Compressor:
The engine piston and hammer piston are mounted separately in the upper and lower place of the cylinder.These two pistons move up and down synchronously.The hammer piston and the bigger bore of the cylinder forma compression chamber,which together with air inlet and outlet valves and ventilator valves,form the air compressor.It is composed of hammer piston parts and cylinder parts.
3.Rock drill:
It is composed of hammer piston parts,rotation mechanism parts,drill shank housing parts.




Type | YN27C |
Weight of main machine | 27kg |
Overall dimensions(L*W*H) | 746*315*229mm |
Type of engine | Single cylinder, air cooled two strokes |
Cylinder diameter*stroke of piston | Φ58*70mm |
Rotation speed of engine | ≥2450rpm |
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 |
Drilling hole diameter | 28-42mm |
Max drilling depth | 6m |
Fuel consumption | ≤0.12L/m |
Tank capacity | ≥1.5liter |
2. Very compact structure, Less of the-easy-to-damage-parts, very easy to control. It can adapt to these outside situations there is no water and no electronic power.
3.It is a Kind hand held drill built up with gasoline engine, Air pump, rock drill and the rotation plumbum equipment for running or stop.
4.It can be used for breaking, drilling, blasting, tamping splitting and ramming.



1.what can you buy from us?
DTH drilling rig,core drilling rig,highway pile driver,solar pile driver ,anchor pile driver
,rotary drill rig ,underground jumbo drill rig ,screw air compressor,DTH hammer,drill rod,
piston air compressor,pneumatic rock drill ,drill bit,tricone bit ,spare parts.
2.How can I make payment?
A:You can pay by credit card, TT, Western Union, LC etc.
3. How is the shipment? How long dose it take?
A: For large quantity or heavy products, we ship by sea shipping or land shipping. Shipping efficiency depends on country and city you want to ship to. For small and delicate products, we ship by DHL, UPS, Fedex or TNT.You can also appoint shipping method you like before we ship.
4.How is your quality control?
A: We have our own experienced QC.There will be strict inspection and testing for every order before shipping out.