FIELD: food industry.SUBSTANCE: invention relates to the food industry and can be used in the canning industry for seed separation. Machine includes a housing, a hollow perforated rotor mounted therein, rotatably mounted, a feeder and a water supply unit. Perforated rotor is made in the form of an installed at an acute angle α relative to the horizontal axis of rotation of a polyhedral perforated prism with flat perforated faces along its perimeter and with flat end perforated walls of polygonal shape, placed at different angles β and ψ To the axis of rotation of the perforated prism and to each other at an angle ϕ. Longest axes of the end perforated walls of the polygonal shape coincide with one another or are rotated along the rotational axis of the perforated rotor relative to each other by an angle ω. Along the entire length of the perforated rotor, a cylindrical spring with a circular section of turns is mounted along its axis of rotation, which is equipped with a device for changing the pitch of th
