The 7655 rock drill is widely used for drilling blasting holes in rock tunnel boring and various rock drilling operations. It is an important tool in stone engineering such as mines, railways, transportation, water conservancy construction, etc. This machine has a wide range of uses. It is suitable for drilling horizontal or inclined horizontal or inclined gun holes on medium hard or hard (f=818) rocks, and the drilling depth can reach 5 meters. zmjt0527655 rock drill parameters machine weight: 24kg total length: 628mm use air pressure: 0.63MPa cylinder diameter: 76mm piston structure stroke: 60mm drilling impact frequency: 36Hz impact energy: 65J drilling air consumption: 80L/s idling speed: 300r/mim voice: 112dB (A) use air pressure: 0.2-0.3MPa loss Air education tube inner diameter: 25mm water delivery discipline inner diameter: 13mm drilling diameter: 3442mm drilling depth: 5m brazing tail specifications: B22 × 108=1mmFY200A type oiler 0202 0202 0202 0202 0202 weight: 1.2kg oil storage capacity: 0.2L air leg: FT160A type, FT160B type 0202 0202 weight: 17, 16kg air leg length: 3006, 2526mm small 0202 021668, 1428mm Propulsion length: 1338, 1098mm Shaft thrust: 2000, 2000N.