Industrial color selection machine applicable scope is wide. Because the slot machine chute is based on product size and shape design for the width of the volume difference of some products, can not be applied simultaneously, and even choose not clean. Clean out rate is high. Belt conveyor belt transmission, smooth and stable, non - elastic material. Easy color recognition, clean out rate is high, with a small ratio. At the same time, the amount of treatment is closely related to the proportion of the raw materials and the proportion of the impurities contained, as well as the required accuracy. Selected rate refers to the impurity amount selected from grain percentage of impurities in total, also called the precision of color separation. In order to improve the stability of the equipment, in addition to using a light source with high stability and high quality imaging lens, but also the influence of the corresponding control technology to compensate the environment caused by the change of color sorter, and automatically adapt to different grain and impurity, the sorter can always maintain the best working condition.