GRAIN SELECTOR FOR SOYBEAN

PROBLEM TO BE SOLVED: To prevent selected grains from overflowing from a gap between rear side rotary grain selecting cylinders when a container is replaced with a front side grain discharge opening closed temporarily. SOLUTION: Grains lifted from a raw material hopper by a lift are selected by rotary grain selection cylinders (1) and (2) installed on the front side and on the rear side, and the selected grains are discharged on the front side. The rear side cylinders (2) are set above the front side cylinder (1). When in the cylinders (1) and (2), small-diameter cylinders (1b) and (2b) are inserted into large-diameter cylinders (1a) and (2a), and the grains are selected into large grains, medium grains, and small grains, the volume of a medium grain discharge part is increased preferably, and the lift equipped with the raw material hopper is preferably made changeable to be fitted to the front side part or rear side part of a machine body.