Rock drill rock drill rock drill manufacturers mine rock drill pneumatic rock drill Wind pneumatic rock drill passing through, do not miss the rock drill factory direct Clearance, come buy. China Coal, quality assurance, welcome your inquire ... rock drill is used to direct extraction of stone tools. Rock drilling a borehole, in order to put into easy fried products go to blast rocks, thus completing the extraction of stone or other rock engineering. In addition, the drilling machine can also be converted to destruction, used for breaking up the hard layer of concrete and the like. The most professional manufacturer of rock drill, Shandong coal, Tel: 15154797203, welcome your call at any time. Select the drilling machine on the choice the Shandong coal, the best choice Oh! ! ! The rock drill is to work according to the principle of impact crusher. Working piston high-frequency reciprocating motion, continue to impact on the solder tail. Impact force showed a sharp wedge-shaped drill head crushed rock and chisel into a certain depth, the formation of a dent. Piston is returned, Qianzai turned a certain angle, the forward movement of the piston, the impact of the solder tail again, and the formation of a new dent. The fan-shaped blocks between two dents horizontal force component generated by the drill head to cut it into pieces. A certain depth of the circular bore, the piston impact solder tail and continuous from the center Qianzai hole to enter the compressed air or pressurized water, rock slag discharge hole. How about that? To explain the details of it? What do not understand, then pick up the phone to consult, to welcome you to buy oh. Welcome your call .....