Hammer Mill


A hammer mill is a mill whose purpose is to shred or crush aggregate material into smaller pieces by the repeated blows of little hammers. These machines have numerous industrial application for grains, a farm machine of which mills grain into coarse flour to be fed to livestock and milling grain.

Hammer mill can crush different dry material such as maize, cassava, sorghum, straw, blighted grain, stem and vine. It is easy in operation, sanitary, from and durable in service, really ideal equipment


A hammer mill is essentially a steel drum containing a vertical or horizontal rotating shaft or drum on which hammers are mounted. The hammers are free to swing on the ends of the cross, or fixed to the central rotor. The rotor is spun at a high speed inside the drum while material is fed into a feed hopper. The material is impacted by the hammer bars and is thereby shredded and expelled through screens in the drum of a selected size.

The hammermill can be used as a primary, secondary, or tertiary crusher.


Small grain hammermills can be operated on household current. Large hammer mills used in automobile shredders maybe driven by diesel or electric motors ranging from 2000 to over 5000 horsepower(1.5~3.7MW).

The screenless hammer mill used air flow to separate small particles from larger ones. It is designed to be more reliable, and is also claimed to be much cheaper and more energy efficient than regular hammer mills. The design& structure of the hammer mill is always determined by the end use.


Types of Hammer Mill Crushes can include “up running” and “down running” hammer mills.

Up Running- Uses perforated screens or grate bars to reduce soft or hard materials. The material to be reduced determines the rotor construction that be adjustable based on wear.

Down Running- Most suitable for fibrous materials due to the high concentration of shearing action with the unit.  

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