FIELD: agriculture.SUBSTANCE: unit comprises a housing with the lateral inner surface of the skin, made approximately in the form of a circular guide and/or a circular segment, at least one inlet opening for granular material to be transported or seed grains to be transported, a transportation device for granular material to be transported or seed grains to be transported, concentrically rotating in the housing. Also, the unit includes at least one outlet opening that is approximately tangentially adjacent to the inner lateral surface of the housing. The transportation device has in its outer area one or more openings and/or grippers. In the first area of the housing and/or the transportation area, the opening or the grippers form a pocket with the inner lateral surface of the housing, into which the grains are pushed and, by means of centrifugal forces with the assistance of the transportation device, are transported in a circular manner. In the second area of the housing and/or the piecemeal separation area, due to the modified contour of the inner lateral surface of the housing, only one grain remains, respectively, under the influence of centrifugal forces in each opening or at the gripper of the transportation device. Excess grains are separated and retracted back to the first area of the housing for re-transportation. The lateral surface transforms from the wide area to the narrow one so that the narrow width of the lateral surface provides a sufficient guide for one grain to be transported.EFFECT: increasing the seeding accuracy and uniformity of granular material.16 cl, 27 dwgИзобретение относится к распределительному агрегату для зернистого материала, такого как семенные зерна, удобрения и т.п., прежде всего высевающему агрегату распределительной машины или сеялки. Агрегат включает в себя корпус с выполненной приблизительно в форме круговой направляющей и/или кругового сегмента боковой внутренней поверхностью обшивки, по меньшей мере одно впускное отверстие
