1.Brief introductions of KHYD155 electric rock drilling rig for coal mine KHYD155 electric motor rock drilling rig is a tool for rock blasting hole. ·electric motor rock drilling rig should be equipped with drilling rigs, and can be drilled horizontally or inclined upward in any direction. ·In order to prolong the service life of drill bits and improve the working conditions of operators, water draining powder is called wet drilling. ·In the operation of drilling rig, we only need to operate the hand wheel, and the electric motor rock drilling rig can push itself forward and return quickly. 2.Specifications of KHYD155 electric rock drilling rig for coal mine Model KHYD155 Rated output power of motor (kw) 7.5 Rated voltage of motor (v) 380/660 Rated frequency of motor (hz) 50 Rated current of motor (a) 15.4 Motor rotating speed (r/min) 1440 Motor phase number three phase communication Rated working mode continuity