Driftless Prairies: Native Habitat Restoration

Nature inspires awe!


A hammermill is an invaluable tool when processing seed. It is used to break up the shell or pod containing the seeds or break apart seeds that are clustered together. We do this because we want to plant individual seeds and not a clump or cluster of the same seed.


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Knowing what speed and what size screen to use comes with experience but not to worry, it’s nearly impossible to do anything wrong with this! If you want a very fine product use a high speed and a small hole size for the screen. The beauty of this piece of equipment is that you can change the screen and change the speed to fit the size of each seed.

This hammermill was purchased from CS Bell Co.  They will custom make this cast iron and steel hammermill to your specifications; we chose Model 10 with a bottom discharge. It has a 1.5HP electric motor with variable speed drive control, which requires a 220 outlet. It has a 6” chute for the input of the seed and an 18” tall clearance for the output; this clearance height allows for the size of a plastic bin to be placed in this area to collect the seed and resulting chaff.

It is a very dusty, dirty, and loud operation. Be sure to locate the hammermill outside and wear a dust mask, eye protection, and ear muffs.