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Practical knowledge of color sorter

Jun 26, 2026 Leave a message

Color sorter is a high-precision sorting equipment that relies on the differences in optical properties of materials, combined with photoelectric detection and intelligent control technology. It is also a core intelligent equipment in the fields of agricultural product processing and industrial recycling, completely replacing manual sorting and solving the pain points of low efficiency, large errors, fatigue and missed detections in manual sorting. It is widely used in various industries for material quality improvement and screening.
1, Core working principle
The color sorter is composed of four core modules: feeding system, optical detection system, signal processing system, and jet separation execution system. The material slides evenly through the vibrating feeding device, and when passing through the high-definition imaging area, the CCD high-definition camera and infrared sensor will quickly capture the color, texture, and morphological details of each material. The built-in intelligent chip of the device compares the collected image with the preset good product model, accurately identifies materials with different colors, shapes, and poor quality, and then uses high-speed micro nozzles to accurately spray air to remove impurities and defective products. Good products are discharged normally, and the entire process is automated, contactless, and efficient to complete the sorting operation.
2, Classification and Differences of Mainstream Models
The common color sorting machines on the market are mainly divided into two types: groove type and track type, which are suitable for different material sorting needs. The chute type color sorter has wide applicability, fast operating speed, and high output. It is mainly used for sorting materials with regular particles and hard texture such as rice, miscellaneous grains, tea, nuts, etc. It is the mainstream model in the grain and oil processing industry. The tracked color sorter has smooth transmission and strong buffering, which can minimize material collision and damage. It is suitable for precise sorting of fragile and lightweight materials, such as dehydrated vegetables, fine medicinal herbs, and sheet plastics.
3, Not only selecting grains, but also having a wide range of application scenarios
Most people mistakenly believe that color sorting machines are only used for grain screening, but in fact, their application scenarios are very diverse. In the agricultural field, rice, millet, beans, sesame, and tea can be sorted to remove mold, yellow grains, and impurities, improving the quality and appearance of agricultural products; In the industrial field, it can be used for sorting plastic particles, ores, and quartz sand, sorting out colored waste and impurities, and achieving material recycling and reuse; In the field of medicine, various types of Chinese medicinal materials can be screened to eliminate moldy and deformed herbs, ensuring the purity of raw materials. The new color sorter equipped with AI intelligent modeling technology can also adapt to production scenarios of multiple categories, small batches, and high-frequency material changes, greatly improving its adaptability.
4, Common cognitive misconceptions
Many users believe that the more channels a device has, the higher the sorting accuracy, which is a typical misconception. The number of channels mainly affects the processing output of the equipment, while the sorting accuracy depends on the optical imaging accuracy, sensor sensitivity, and intelligent algorithm model. Small batch, high-precision sorting scenarios, no need to blindly choose multi-channel models, on-demand selection can balance cost-effectiveness and sorting effect. At the same time, a single color selection cannot completely eliminate fine impurities. Under the demand for high-purity production, a second selection can significantly improve the material yield rate.
5, Simple maintenance tips
The core precision components of the color sorter are the optical lens and glass window, and dust and material residue will directly reduce the recognition accuracy. In daily use, low dust materials such as grains can be cleaned once a week, while medium dust materials such as corn and millet are recommended to be cleaned daily. High dust materials such as millet and rice need to be cleaned every shift. When cleaning, it is necessary to use a dust-free cloth combined with specialized optical cleaning agents. It is forbidden to directly blow with compressed air to avoid dust spreading and adhering to precision components, which may affect the long-term operation accuracy of the equipment. Regular cleaning and standardized operation and maintenance can effectively extend the service life of equipment and stabilize the sorting effect.

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