Mortars and Pestles. Tools used to grind and crush substances into fine powders or pastes. Mortars are bowlshaped, and pestles are heavy, rodshaped tools. Commonly sold as sets but available separately. Includes mortars, pestles, adapters, etc. in several materials. Read More.
Grinding is easily enabled in autogenous mills by attrition. Also, autogenous mills have grate discharges, so as to retain the coarse grinding media in the mill while dispatching the fine particles. The other benefits of using autogenous grinding include – reduction of metal wear, and elimination of secondary and tertiary crushing steps.