Hammer mills are one of the most economical impact milling systems available. Hosokawa’s Mikro Pulverizer Hammer and Screen Mill is designed to mill soft to medium hard chemicals, minerals and plastics down to D90 < 45 µm. The systems can be coupled with a liquid nitrogen cooling tunnel for cryogenic or temperature controlled applications. The hammer mill uses an internal screen mounted below the grinding rotor to control particle top size. If finer or narrower particle size distributions are desired, an external dynamic classifier can be installed downstream from the mill to separate the coarse fraction or return oversize materials to the hammer mill.
Typical size reduction results on the Mikro Pulverizer: