In the choice of color sorting machine, mainly to the long-term stability of reliability and the use of advanced equipment, the quality of the focus on the technical performance of the color sorter, should conduct a comprehensive consultation, more widely. Therefore, in the choice of color selection of the processing object and its content must first clear, otherwise, it can not reach the desired effect. According to the difference of material optical properties, using photoelectric technology granular material in different color granules automatic sorting out of the equipment. A color sorter only over the material, rice or wheat contains more normal in the secondary data, usually users accumulate a certain number and color sorter to color a, laborious and time-consuming, more trouble. Using high performance integrated block, can greatly reduce the failure rate, saving power consumption. Stainless steel collecting bin, avoid wet rice bran cause equipment rust, snake, mildew. The circuit and the optical components adopt a fully sealed structure to achieve a clean working environment and ensure the stability of the equipment.