This was a major engineering problem for McLeod. Several design elements, including a live floor, leveling augers and agitation devices, eventually accomplished those goals. It can do the job in three minutes. Next stop is a stationary mill at a bin site. When the driver pulls away, the electrically powered mill begins separating grain from chaff.
Screens remove large material, weed seeds and undersized or broken grain.
The mill can clean 500 bushels per hour to high-quality standards with minimal grain loss. Meanwhile, crop residue called millings is shot through a 10-inch pipeline to a storage pile. Included in the millings are weed seeds. These don't get spread onto the field, so herbicide costs should go down. After cleaning, the mill sends millings to a pile for storage until they can be used as animal feed.