Application of YN27C Gas Powered Jack Hammer Rock Drill
YN27C Inter Combustion Rock Drill suited to work on high mountains, plains, hot and cold area with no power and no water supply and air compressing equipment, and especially suits the projects that the machine has to be carried at any time and in any area.
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Technical Parameters of YN27C Inter Combustion Gasoline Rock Drill
Weight of main machine | 27kg |
Overall dimensions(L*W*H) | 746*315*229mm |
Cylinder diameter*stroke of piston | Φ58*70mm |
Rotation speed of engine | ≥2450rpm |
Displacement of engine piston | 185cm³ |
Type of carburetor | hand needle valve, float-less type |
Ignition system | controllable silicon, contact-less system |
Drilling speed (mean value of five holes) | ≥250mm/min |
Drilling hole diameter | Φ28-42mm |
Max drilling depth | 6m |
Fuel consumption | ≤0.12L/m |
Tank capacity | ≥1.5liter |
Drill rod and breaker shank | Hex22*108mm |
Rotating speed of drill rod | ≥200rounds/min |
Clearance of spark plug | 0.5-0.7mm |






High efficiency: The internal combustion rock drill can drill a large amount of rock in a short time, significantly improving engineering efficiency.
Mobility: Due to the use of internal combustion engines, the equipment is usually highly portable and suitable for use in the field and without power.
Adaptability: It can be applied to a variety of geological conditions, including hard rock, soft rock and other complex environments.
Durability: Generally made of high-strength materials, with good wear resistance, suitable for long-term high-load work.
Power transmission: The internal combustion engine converts the rotating power into reciprocating motion or impact force through mechanical devices such as claw wheels and eccentric wheels.
Bit breakage: The bit is in contact with the rock, and through the action of high-frequency vibration and impact force, the rock formation is rapidly broken.
Chip removal function: During the drilling process, the cuttings generated by the drill bit are effectively removed to maintain the cleanliness of the hole and drilling efficiency.




