Jack hammer noise is a very tangled problem, I think a lot of friends in use will have such feeling, Jin Shengli today drill here say to everyone about the noise of the drill, to take you to look at the noise of the drill are derived from there, and then for noise removal. The noise in the work of rock drill mainly comes from four aspects: 1) noise from exhaust emission. 2) the noise generated by the piston striking the bit. 3) the vibration of the drill parts and the drill rod caused by the impact. 4) impacted rock vibration. The integrated management method to the above several kinds of noise, abroad is the whole drill wrapped up with tubular muffler, such not only eliminate the exhaust noise, but also avoid the solid noise (i.e., drill noise reflections), even no longer transmission piston impact the noise of the shank, and is able to cut.Another way is to cover the body with a fibrous sheath, which consumes sound waves .