The rock drill has good performance under low pressure,it is suitbale for act impetus with long Air pipe and small air compressor.And it is use for drilling in mines,quarries,railway construction,water conservancy and national defence project facility. When it is matched with Model FY200A oil reservoir and Model FT160A or FT160B air-leg, it can perform wet drilling under various of rocks at aclinic and incline orientation,it can also use in the trolley without Air-leg. Weight 24 kg length 668mm Air pressure 0.35-0.63MPa Cylinder dia 70mm Piston stroke 70mm Impact frequencey(at0.4MPa) e28HZ Impact energy(at0.4MPa) e45J Air consumption (at0.4M d38 L/S Noise d112dB(A) Water pressure 0.2-0.3MPa Air pipe (inner dia) 19 mm Water pipe (inner dia) 13 mm Bore dia 34-42mm Bore depth 5m Shank dimensions(hex×length) 22×08 ±1 mm Model FT200A Oil reservior Weight 1 .2kg Oil capacity 0.2L Air leg FT160A FT160B Weight 17Kg 16 kg Length:max 3006mm 2526mm min 1668mm 1428mm Propulsion stroke 1338 mm 1098 mm Axis thrust(max) 2000N 2000N