The sorter is designed to sort potatoes, onion and other bulb vegetables collected directly from fields and in every other period from stores, refrigeration plants or clamps. The sorter may be equipped with a rubber or metal sorting tape dependantly on sorting material and a client;s inclinations. The machine is equipped with two 1,1 kW motors with mechanical regulation of revolutions (the first drives a sieve and the second drives sieve shakers) and one 0,55 kW motor that drives the side feeder. The sorter divides material into two fractions; the big one goes to the back, the small one falls to the side feeder. Optionally the machine can be equipped with an intake hopper and a picking table ended with a bagger. The sorter can be used in medium and big farms and works well also in industrial processing. The machine can be great complement to production lines in onion and potato processing.