Highly finished cutting tools made of imported special tool steel , the clearance of which are adjustable . The cutting tools are durable and can be ground repeatedly . Recovery cam be completed within 30 seconds . There is no need to grind collectively and therefore the equipment can always be kept clean and dry . Low speed and with sound isolation, so the nise is very little . Equipped with double spacing switch and automatic sudden stop arrangement . It can efficiently guarantee the safety of operators . Itlet hopper is designed specially with antrust device which can efficiently prevent from leak and pollution in the grinding process. Outlet hopper perfectly designed makes it quite convenient for operators to clean the machine