According to the difference of optical properties of materials, color sorter is an automatic sorting equipment integrating light, machine, electricity and gas. It uses photoelectric detection technology to automatically sort out the heterogeneous particles in the particle materials. At present, color sorters are used in food, plastic, pigment and chemical industries. Color sorter can greatly simplify the production process and improve the production efficiency.

In the 1930s, American and British companies developed the earliest primary color sorter. In the 1970s and 1980s, Japan and Korea successively developed and commercialized a new generation of color sorter. However, China did not introduce color sorter until 1980. Before 2000, color sorter in China were mainly foreign brands, these foreign brands guide the market and make the Chinese market gradually accept color sorter.

In the 21st century, after China joined the WTO, Chinese economy has made great progress, the living standard of the people has been greatly improved and the demand for high quality agricultural products is increasingly strong. China is a agricultural country, agricultural products processing prospects are broad. At the same time, with an aging population, it’s a tendency for machines to replace people. In such form, Chinese home-grown color sorter in the rice processing industry entered a high-speed growth period. More and more domestic manufacturers of color sorter, variety specifications are also increasingly rich. At the same time, the function of color sorter is increasingly perfect, from small chute model to large chute model, from visible light to infrared light, ultraviolet light identification, etc. On the basis of the original performance of the imported color sorter, the domestic color sorter keeps innovating and forms a series of major technological breakthroughs.

It can be seen from the development of color sorter industry that the transfer route of high-end equipment manufacturing industry, The initial development of European and American countries, to the improvement of Japan and Korea, and finally the formation of mass production in China. China is committed to the pursuit of high-end equipment manufacturing, striving to realize the leap from large-scale low-end manufacturing to high-end manufacturing.

From the application of color sorter industry, China is on the same track as Europe, America, Japan and South Korea. We will gradually return to industry, agriculture and service industries from the beginning of reform and opening to the outside world. China is shifting from industrial development to industrial, agricultural and service industries with equal emphasis.

Chinese enterprises have experienced nearly 20 explorations and efforts, which not only realized the manufacture of color sorter, but also gradually develop and mature this industry and realize the automation of manual sorting fields. The color selection industry will develop rapidly with the continuous progress of social productivity, and will permeate all walks of life, benefiting every link in our life.