The mill features three porcelain rollers which are manufactured to extremely close tolerances. The reduction of particle size is achieved by all three rollers running at varying speeds, creating a shearing action.
Two side guides on top of the rollers aid the compounder in the placement of the compound onto the back set of rollers. The compound then moves through the mill and onto the scraper plate. If the desired level of trituration has been achieved, the compound may then be dispensed. If more trituration is desired, the compound may be scraped off of the plate and run back through the mill.