In this machine, powders are guided through a feed chute into the center of the machine and blown off in a peripheral direction by the centrifugal force generated by the high speed rotor. The dispersed powder particles hit striking pins rotating at over 10,000 rpm. Consequently, the powder receives mechanical impacts by these collisions on its surface. The powder reaching the periphery of the machine re-enters the circulation route and returns to the center of the machine. This process is continually repeated.
Since the powder particle repeatedly impacts on the surface, fine powder particles become attached to and arranged on the surface of the core particles.