The main components of the color sorter

CCD & camera

RGB full color tri-chromatic CCD image acquisition system, High resolution camera with 5340 pixel identifying tiny defects up to 0.01mm2.

Image Processing

Strong industry-grade digitization processor, image acquisition and processing in high speed, consistency of signal path and signal reliability is secured.

Sorting Algorithm

Excellent combination of mechanical structure and tri-chromatic control system, guarantee 99.999% accuracy and amazing 50:1 rejection rate.

Fast Support

Using (Internet + AI) technology, with mobile phone APP soft, to achieve remote control of the machine and real-time online monitoring.

Color Sorter Machine

Our color sorter advantages

CSG Background

Global second largest manufacturer for optical sorting machine and have more than 30 years experiences in this industry. Have annual production capacity of 5,000 sets of color sorter machine.

China's first ccd color sorter manufacturer and pioneer. Subordinate body of United Nations (U.N.)is our client, it's strict procurement process can prove our product quality and service.

Our Skills

Channel Color Sorter
Channel Type
Color Sorter Machine List

Rice, Wheat, Corn, Nuts, Bean, Seeds, Grain, Food etc.

Multilayer Color Sorter
Multilayer Type
Color Sorter Machine List

Tea, Dehydrated Vegetables, Herb, Dried Flower, Leaf Products etc

Belt Color Sorter
Belt Type
Color Sorter Machine List

Nuts, Sunflower Seeds, Salt, Sugar, Glass, Plastc, ore, Industrial products etc.

Contact Us


CSG manufacturing center is located in Baiyan Technology Park in Hefei High-tech Development Zone of China, with an area of 100,000 square meters, 22,000 square meters of modern workshops and 25,000 square meters of scientific research buildings. Annual production capacity are more than 5000 sets Color Sorter.

Hefei Hi-tech Industrial Development Zone, Anhui, China +86 134-8597-8371

We'll spend time on each of these areas throughout this color sorter guide, but we wanted to introduce it here because it offers a look at how we structured the guide as a whole:

Chapter 1: Introduce
1.1: What Is Color Sorter Machine?

The color sorter machine is an artificial intelligence machine used in large-scale food processing and other industries. As the name suggests, it categorizes materials based on color; materials can be classified as standard or unqualified.

Graphic: Three Types of Color Sorter

There are three types of color sorters: vertical, crawler, and multilayer. They include processing technology, light sources, and equipment architecture

1.2: How is Color Sorter Used in Agriculture 

Agricultural products are the most widely used products in color sorters. Most products used are granular. This machine uses high-sensitivity color sensors to distinguish good from bad. Good and bad are required colors and standard shapes in the sense of consumption.

1.3: Various agricultural products using color separation machines

There are quite a number of granular and non-granular agricultural products using color sorters. Except for agricultural products, other products use color sorters. They are plastic color sorters, salt color sorters, ore color sorters or general multifunctional color sorters.

Chapter 2: Working Principle
2.1: How Does a Color Sorter Work?

Color sorter works. In this optical sorter, you have to distinguish them by the color of the solid materials. You can do this when you use a high-resolution CCD optical sensor to drive a solenoid valve to help classify different solid materials. The color sorter uses photoelectric technology to classify different colors in grains and other materials such as plastics, sand, and more. The color sorter is mainly composed of the following parts: two types of color sorter are belt type and chute type. During the transportation process, the materials with a smaller belt crushing rate are a bit stationary. Chute types, on the other hand, are materials that slide due to collisions, friction, and a large amount of vertical motion caused by gravity.

2.2 Principal Technical Indicators for a Color Sorter

These are indicators that give you guidance on the usefulness of a color sorter. They give you details on how color sorters work in the various industries that find it essential to have that kind of equipment.

2.2.1 Processing Capacity

This is the number of products that can be processed using a specific timeline. The following factors determine it:

  • Speed of servo system
  • Maximum speed of the conveyor belt when using a belt color separator
  • Amount of impurities in raw materials
  • If the speed of the servo system is fast enough, impurities will be triggered, which will increase the speed of the conveyor belt and thus speed up the material processing speed in the color sorter. The speed of the conveyor determines the output. The faster the speed, the higher the result. When there are fewer impurities in your material, the process is faster. After all, what you need is accuracy, and high-precision production takes more time.

    2.2.2 Selection Accuracy

    This is the percentage of impurities selected from the raw materials to the total amount of contaminants contained. Factors affecting selection accuracy include:

  • Conveyor speed
  • Raw material purity level
  • When your conveyor is unresponsive, you will spend more time on adjacent impurities. The servo system also has enough time to eliminate contaminants and improve color classification. It should be noted that the design of the servo system limits the accuracy of color selection, and if there are more than two impurities, the color accuracy is lower. However, in general, the structure chosen is better than a single structure.

    2.2.3 Carryover Rate

    This is the ratio of the impurities separated from the normal material by the color sorter. Adjustments can be made using actuators. If the output ratio is large, both the selection rate and processing capacity will be affected. If, in contrast, a low setting, the waste would be substantial. This means that it will be reprocessed and can be used in other ways. In short, in the production process using color sorters, you must pay attention to:

  • The processing volume
  • Color selection Accuracy
  • Output capacity
  • Those as mentioned above, need a concurrent kind of monitoring.

    2.3 Why Are Color Sorters Essential? 

    The color sorter should be the greatest invention of our time. There are no parameters to measure yet, but once you start using it, you will agree with me. Imagine a world without a color sorter? Boring, task ... is it? Maybe the food people eat has a lot of impurities, or the colors are different in any way. There may be a lot of manual labor, which should be difficult, because it is not easy to separate everything by human nature alone. This tells you why we need to embrace technological advantages like color sorters, which is very important for the following reasons. You can use it to separate raw materials of different colors. You can use it to detect colors, whether you want them or not, whether in agricultural or industrial products. For example, in diamonds, a color sorter is used to check the purity of a diamond. This is necessary for your food safety because you will separate unwanted impurities from consumer products.

    More Reasons

  • As a manufacturer of agricultural machines that are consumed by human beings, you can use the color sorter to evade legal action just in case impurities are found in your products which, according to Food Safety Act 1990, you have to have measures that put a stop at the contamination of your food. A color sorter is very vital in this case. They say it is better to be safe than sorry.
  • It is essential for general improvisation of the raw materials and the end products look better than they were before.
  • Ore color sorters are essential for you since they merely do the color sorting without adding any chemicals that may be dangerous to you.
  • For minerals, a color sorting machine helps in reducing the cost of production.