A hammermill is a machine that can crush or shred aggregate material into smaller pieces. The hammermill can be used for all kinds of application such as, barley, bran, oat hulls, apples, ethanol plants, fluff pulp, fruit juice, milling grain, paper shredding, yard waste, etc.
The general idea of a hammermill is pretty simple. A hammermill is consists of a steel drum that has a vertical or horizontal rotating shaft or drum that the hammers are mounted onto. The hammers are able to swing freely on the ends of a cross, or they can also be affixed to the center rotor. The rotor spins at high speeds inside the drum. The material is sent through a feed hopper. The material is then crushed by the hammer bars which will then shred and go through screens in the drum of a particular size. The screens can be changed out depending on the type of result needed.
For the internal parts a center feed, reversible rotors move the product or material across the entire screen area that gives the hammer an even wear. It also allows the rotor to be reversed so both edges of the hammers can be completely used before any replacement is needed.
Accurate clearance between hammers and the screens is maintained with heavy duty mounted screens. The rotors can be wider for various hammer setups. They are all supported between solid pillow block bearings. These factors combined allow it to provide a controlled, equally shaped granular grind. It also has the benefits of easy maintenance.