Stone Crusher Spare Parts Manufacturers, Stone Crusher .
Stone Crusher liner improvement purpose. In order to overcome the shortcomings of the prior art, a new Stone Crusher liner which can improve the life of the Stone Crusher, the efficiency of mine breaking, eliminate the safety hazard, and prevent the loosening of the liner is emerged. Stone Crusher liner improvement contentHistory tells us, it was in 1830, the first US patent was issued on a rock crushing machine. It covered a device which, in a crude way, incorporated the drop hammer principle later used in the famous stamp mill, whose history is so intimately linked with that of the golden age of mining. In 1840, another patent was issued, which comprised a wooden box containing a cylindrical drum apparently .