... Long service life. 4.Advanced technology PCH Series Ring Hammer Crusher is suitable for crushing various brittle materials ... , gangue, coke, slay, shale and loose lime stone etc. Whose compressive resistance no exceeds 10Mpa and the ... greater than 8%. Working Principle of Ring Hammer Crusher PCH Ring hammer crusher is a punching rotor type ... -62209.22700×2000×1350 PCH Series Stone/Coal Ring Hammer Crusher