Prater Fine Grinders (M Series Mills) are designed to grind dry, freeflowing material as fine as 400 mesh (37 microns) with very tight distribution of particle size. The highly efficient design allows for ease of access to all internals and is well suited for heat sensitive materials such as resins and sugar. Six sizes are available from the 3 HP M19 bench scale lab mill to the 300 HP M101 ...