Small grass seeds like millet are cultivated widely around the world as cereal crops, fodder for animals and for human consumption. In areas with less water, millet can be an ideal crop. During harvesting undersize noxious weeds like pig weed (amaranthus) and bind-weed (convolvulus) are harvested with millet making screening difficult due to the near physical size similarities of the various noxious weeds to the millet. BM&M’s ability to add inlet (pre) aspiration and discharge (post) aspiration along with engineering the stroke length, slope and seed of the screening machine gives producers the tools they need to perform a precision screening operation.