Seed Grain Cleaner.

Seed Grain Cleaners are designed to meet the needs of hobby farmers who are interested in separating small grain seeds from the chaff of the plant.  The issue associated with many seed grain cleaners is that the source of separation is usually a vacuum.  This means that there is no way for the mechanism to do a variety of seeds.  This Seed Grain Cleaner, designed by the University of Wisconsin-River Falls Agriculture Engineering Technology Department, in association with the Crops & Soils Department, can effectively provide options to clean many different sizes of small grains without sacrificing efficiency.  This Small Grains Cleaner was designed to use a high-powered vacuum and allow variable air intake from different sized ports in the machine to allow for seed size variability.  The machine was designed with three different sized holes in the front cover of the mechanism, with a smaller sliding cover over the top of the three holes.  When a smaller seed size is desired to go through the machine, the air ports will be opened further to compensate for the small seed size, and vise versa for larger seeds.  The design team found that this design did in fact create seed size variability.  From the testing conducted, the machine was able to separate seeds as large as oats and as small as amaranth.  The research proved that this newly designed Seed Grain Cleaner was a better machine for hobby farmers to provide various solutions to one major problem.