Maxdrill Yn27c Rock Drill for Small Hole Drilling
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China [CN] 1.Engine: The engine is a hand operated, single cylinder and two stroke petrol engine with air cooling, re-flux air conversion, no contract ignition, and no floating-type carburetor. It is conposed of control parts,shield 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 form a 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 chuck parts.More products
| Specifications | Y20 | Y24 | YT27 | YT28 |
| Weight(Kg) | 18 | 24 | 27 | 26 |
| Total Length(mm) | 605 | 605 | 668 | 661 |
| Working Pressure(Mpa) | 0.4 | 0.4-0.63 | 0.63 | 0.63 |
| Impact Frequency(Hz) | ≥34 | ≥27 | ≥27 | ≥37 |
| Air Consumption(L/S) | ≤25 | ≤53 | ≤83.3 | ≤81 |
| Air Pipe Inner Dia.(mm) | 16 or 19 | 19 | 25 | 25 |
| Shank Size(hex.mm) | 22x108 | 22x108 | 22x108/25x108 | 22x108 |
| Bore Dia.(mm) | 30-40 | 34-42 | 34-45 | 34-42 |
| Hardness(f=) | 8-18 | 8-18 | 8-18 | 8-18 |
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