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Specifications

YT28 is a kind of high efficiency air-leg rock drill, which is mainly used in mining, tunnelling, quarrying, road construction, water conservancy construction and defence project facility.

Product details as follows:
* Weight: 26kg
* Length: 661mm
* Cylinder diameter: 80m
* Stroke of piston: 60mm
* Operating air pressure: 0.4MPa-0.63MPa
* Impact frequency: ≥28Hz ≥35Hz ≥36Hz
* Air consumption: ≤52(L/s) ≤58(L/s) ≤82(L/s)
* Impact power: ≥44J ≥63J ≥70J
* Torque of drill rod: ≥15N*m ≥19N*m ≥23N*m
* Rotating speed of drill rod: ≥250r/min ≥260r/min ≥300r/min
* Drilling speed: ≥250mm/min ≥400mm/min ≥470mm/min
* Noise: ≤124dB ≤125dB ≤127dB
* Air pipe inner dia.: 25mm
* Water pipe inner dia.: 13mm
* Bit head diameter: Φ34-42mm
* Drill rod tailer(the sides length of the hexagon): 22*108