1.Brief introductions of KHYD75 electric rock drilling rig ·electric rock drilling rig can be fitted with drilling stand, and can be drilled horizontally or inclined upward. ·In order to prolong the service life of the drill bit and improve the working conditions of the operator, wet drilled water can be used to discharge the powder and screw blade drills can also be used for dry draining. ·In drilling operations, we only need to operate the handwheel, and the electric motor rock drilling rig can advance and return quickly. 2.Specifications of KHYD75 electric rock drilling rig ModelUnitKHYD75 Rated output power of electric motorkw3 Rated voltage of electric motorv380/660 Rated frequency of electric motorhz50 Rated current of electric motora6.8/3.9 Motor rotating speedr/min1420 Working modecontinuity Drilling speedmm/min320 Rig return speedm/min Borehole diametermm42(rockï¼? Hardness rangeprotodikonov`s scale of hardnessf