Dispersers provide the mechanical energy to breakdown agglomerated particles to smaller aggregates. There are two classes of dispersers to grind material. The first group uses a high shear disperser blade rotating at a high speed. The second class are bead mills that use grinding media. A mechanical force moves the media at a rapid speed creating a shear force by collisions and rolling movements. The material volume, viscosity, and final particle size are key factors to select the right disperser.