Method of Operation
Pin Mills, type PST are used for fine
to finest grinding of dry, brittle, or hard to grind materials
to a fineness of d50=5 micron.
Material is fed centrically by a
dosing mechanism and magnetic separator. Grinding is done
by impact and whirling between the concentrically mounted pin
rows of the rotating and the stationary discs. Particle
size is determined by the speed, number and type of pins.
PIN Mills, type PPST are high-speed,
counter-rotating machines, and they work without a screen.
Pin rows, concentrically fixed on rotor and stator discs
micronize the particles.
Special designs for cryogenic
applications are available.