2014-10-14 · OPEN SPIRAL SEPARATORS The Spiral Separator is used for removing wheat, rye, barley, oats, flaxseed and other grains, screenings, seeds or non-round materials from mustard, wild peas, vetch cockle, soybeans or any round seed. Operating by gravity, the separator contains a spiral that is fed from a large hopper at the top, with an adjustable ...