Internal Combustion Rock Drills – YN27C & YN30
Our YN27C and YN30 internal combustion rock drills are gasoline-powered, portable drilling tools ideal for use in remote areas without electricity or external air compressors. Designed for tough environments, both models combine power, mobility, and durability for mining, construction, and emergency rescue applications.
Applications for Both Models
Mining and Quarrying
Road Construction and Maintenance
Tunnel and Bridge Projects
Emergency Rescue and Military Use
Off-grid Field Operations
Need a reliable rock drill for any terrain?
Choose YN27C for classic efficiency, or YN30 for upgraded power.
Drill anywhere — no air compressor required.
Drilling Machine Specifications
Specification |
Detail |
Weight of main machine |
27kg |
Overall dimensions |
746X315X229mm |
Type of engine |
single cylinder、air cooled two strokes |
Cylinder Diameter X stroke of piston |
58X70mm |
Rotating speed of engine |
≥2450r/min |
Displacement of engine piston |
185cm³ |
Type of carburetor |
hand needle valved、no floating type |
Ignition system |
controllable silicon、contactless system |
Drilling speed |
≥250mm/min (mean value of five holes) |
Max drilling depth |
6m |
Fuel consumption |
≤0.121/m |
Tank capacity |
≥1.14L |
Mixture ratio of gasoline and lubricating oil |
12:1 (in volumes) |
End of drill rod dimensions |
hexagonal 22x108mm |
Rotating speed of drill rod |
≥200r/min |
Clearance of spark plug |
0.5~0.7mm |