Color sorters also known as optical sorters, digital sorters, sortex machine or electronic colour sorters.

Color sorters are mostly used in sorting grains such as rice, wheat, corn, peanut, different kinds of beans, lentils, peas, sesame seeds, etc.. Sorters are using a high-resolution cameras (CCD technologies) to separate stones, discoloured items, toxic such as ergot, not as ripe as required, or still with hull after dehulling such as lentils and other seeds.

Compared with manual sorting, these now technology machines save labor and time, have higher efficiency, improve product quality, and have lower processing costs. Throughputs have increased and are now up to 100 t/h