The crusher is a multi-purpose machine with powerful crushing function, mainly used for crushing all kinds of soft and hard plastic, crushing block, ball, strip and regrind material into granules, playing an important role in the rapid recovery of defective products, waste products and regrind material, and improving the utilization rate of plastic. It can be used as on-line machine side grinder, placed on the host side and can also do a production area offline centralized processing mill.