Our Blogs

InGaAs Color Sorter – What It Is and How Do They Work?

InGaAs Color Sorter
Table of Contents

If you are looking for an efficient sorting machine, you might come across InGaAs Color Sorter. Whether for business or food processing purposes, it is the game-changer. 

This article will tell you all the essential information about InGaAs color sorters. Let’s dive right in! 

What is InGaAs Color Sorter?

InGaAs color sorters integrate the actual infrared camera with the CCD cameras. With cutting-edge technology, InGaAs color sorters are faster and more accurate. You can use it to sort almost all kinds of materials.

You’ll get the benefits and typical applications of InGaAs color sorters in this article. Read on to learn more! 

How Does It Work?

InGaAs color sorters feature the primary function of the CCD color sorter. Their infrared sensors are highly sensitive. They can detect wavelength ranges of 900-1,700nm, sometimes up to 2,500nm.

This machine is an innovative technology upgrade in the industry. It requires a skilled company with particular knowledge to customize the software. Though newly launched, companies favor it for features never in the market before.

InGaAs color sorters study precise light reflection and color registration with four cameras. It also has high infrared sorting capabilities to remove defects even if they look the same. Besides, this machine has ten passages, which can work alone or together based on your needs.

The machine channels the raw materials down the chute when you input the raw materials. The cameras will scan and convert them into digital signals. The signal tells sorting software to either accept or reject the materials. Finally, the solenoid valve will blow the materials into their respective hoppers.

Sorting Modes 

InGaAs color sorters have two sorting modes for better sorting. Let’s take a look:

The normal sorting mode aims to remove impurities. It is for materials with a low impurities percentage of less than 5%. You’ll find it very efficient in sorting materials. 

The reverse sorting mode is for materials with a higher ratio of impurities content. The sorter will choose good items from the bad ones. 

Small sorters can only use one at a time. On the contrary, both modes can work together on larger sorters. 

You can first use normal sorting to remove the “rejected” defects into a hopper. The machine will channel the “rejected” to the secondary sorting. The reverse sorting mode will then pick out the good items from the defects. Finally, it directs the “accepted” materials from the second sorting into the hopper.  

Benefits of InGaAs Color Sorters

Better Visibility of Materials

InGaAs color sorters sort by wavelengths instead of color. You can remove same-color defects from the materials based on their chemical composition. For instance, they can sort plastics of different compositions even if they look the same. 

High Accuracy in Sorting

With the infrared sensor, you can sort your items based on wavelengths. Small sorters using one-time sorting might remove only 99% of impurities. You can make secondary sorting with InGaAs color sorter for 99.9% accuracy. 

Fast Sorting Abilities

InGaAs color sorters come in ten passages for flexible and fast sortings. You can choose to either use all at once or only one at a time. As a result, it saves you more time to make end products. 

Why Choose InGaAs Color Sorters?

An InGaAs color sorter is the game-changer in industrial processing. You can save both time and costs compared to manual sorting by labor with it. This machine also sorts in a fast and accurate manner. It is efficient in removing almost all harmful impurities to ensure food safety. 

You might want to know the competitive advantages of InGaAs color sorters. After all, there are other types of sorting machines.

The answer is simple. InGaAs color sorters are way more versatile and affordable. You’ll find them easy to use and maintain too! Let’s see how it excels among the sorting machines.

Grain sorters for large-scale sortings often limit their functions to sort only grains. You’ll need to spend more to buy this machine due to their sorting technology. 

Gravity separators are complex, expensive, and harder to handle. They sort seeds and grains by gravities with more intricate mechanicals.

InGaAs color sorters are your best choice in price, flexibility, and use. They bring technological benefits in separating materials by color, type, size, and shape. Besides, you can use it to remove impurities for safe foods and better product outlooks. It is a very cost-efficient method to sort your materials.    

Common Applications

The significant uses of color sorters are the agricultural, mining, and plastic industry. Here are some typical applications of color sorters:

Grains / Rice Sorting

InGaAs color sorters are efficient in sorting rice and grains, such as wheat, corn, oats, etc. It ensures high safety standards for food. You can accurately sort the impurities, defects, broken, and moldy materials. 

Mining Sorting

You can also sort mining materials like ore, stones, quarts, and powder. The InGaAs color sorter can sort the concentrates at a very low cost. Whether small or big productions, InGaAs color sorter can fulfill your sorting needs.

Plastic Sorting

InGaAs color sorters are also widely used in the plastic recycling industry. You can sort plastic flakes and pellets based on their color and types. This machine is accurate in separating plastic types like PP, PE, PC, PVC, PET, ABS, PMMA, PS, POM, PLA, and etc.

What to Consider in Buying InGaAs Color Sorters?

Type of Color Sorters

A chute-type color sorter is cheaper and common in sorting all types of materials. In comparison, a belt-type color sorter is pricier yet more functional than the former. It can sort all that chute-type sorters can sort and even brittle materials. 

We recommend the chute-type sorter if you are not sorting any specific materials. Or, you can read more about the belt-type vs. chute-type color sorters to make your choice. 

Model of the Color Sorters

There are a lot of models and materials types of color sorters. You might want to do detailed research before you buy one. The price is generally influenced by the number of channels and the material types you need. 

Warranty of Color Sorters

A reasonable warrant can give you a sense of security when buying the InGaAs color sorters. It gives you quality assurance of the machine. You can also get repair or maintenance if the color sorter fails to meet the warranty.

Customization of Color Sorters

It will help if you look for a company to personalize your color sorters based on your needs. Tell the manufacturer your sorting materials, parameter choices, and other info. A professional company can always customize the color sorter and software for you.


To conclude, InGaAs color sorters are 99.9% accurate in sorting all kinds of materials. They work fast to enhance production and save costs. I hope the info above gives you insights into the advanced InGaAs color sorters. Make sure you research and understand your needs well in selecting a color sorter. 

Edon Zheng

Edon Zheng

Hi, I'm Edon, the co-founder of sgsorter.com, I've been running a factory in China that makes and exports color sorters for 8 years now, and the purpose of this site is to share with you the knowledge related to color sorters from a Chinese supplier's perspective.

Get Instant Quote

We will contact you within 1 working day, please pay attention to the email with the suffix “@sgsorter.com”.