InGaAs Sorter Is Ideal For Plastic Types Separating

No matter cashew fruit only, or complete cashew seeds, SG nuts color sorter will separate them easily. You can also ask the machine to separate the cashew seeds into complete sizes, half sizes, and broken sizes.

CCD Color Sorter Is An Expert For Color Separating

No matter cashew fruit only, or complete cashew seeds, SG nuts color sorter will separate them easily. You can also ask the machine to separate the cashew seeds into complete sizes, half sizes, and broken sizes.

Simple Operation

SG Sorter makes intelligence-oriented coffee color sorters. These machines are easily operated and learn fast with big data and cloud storage. The AI monitoring data and settings also improve efficiency and production.

High Yield

You'll get more outputs with the high-resolution sensor and high-frequency solenoid valve. It has a high sorting capacity and produces a larger amount of end products for you.

Better Quality

Our machine that uses the InGaAs sorting technology makes precise sorting up to 99.9%. Besides, the belt-type color sorter uses a stable conveying belt. It can prevent breakage in the sorting process.


There is no need to use manual labor sorting that is time-consuming and inconsistent. You can reduce labor and operation costs by utilizing a coffee color sorter.

Hot Plastic Sorting Machine Based on Clients' feedback

SG plastic color sorters are designed to separate the plastic flakes and plastic pellets by color or type in plastic recycling. There are two different types of sorting machines for plastic sorting: NIR sorting machine and CCD color sorter.  You can get one plastic of any color or type at every sorting. SG provides 12 different sorting capabilities to suit your plastic sorting requests. Tell us your requests right now!


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All You Need To Know About Plastic Sorting

Here you will get proper how to know about what is the procedure of sorting and which updated technologies are used in color sorters. Follow this guide and start your plastic recycling business.

1.1 What is Plastic Color Sorter?

The plastic color sorter is machinery used for sorting all kinds of plastic by color or by type of material.

Plastic Sorting Machine With InGaAs Lenses

Plastic recycling technology separates other particles and helps to recycle materials.

A high-resolution sorting machine detects impurities and waste particles precisely.

The optical sorting technique achieves a pure quality of products by removing defects and foreign materials like shape, color, and texture.

1.2 Why do you need a plastic color sorter?

The plastic color sorter is a recommended option to purify recycled plastic because it uses advanced technology and quality-tested components & parts.

The sorting process of plastic classifies the materials according to colors. Sorted material can increase the value to meet the specifications quickly.

Figure: Global Plastic Waste Graph

SG sorting equipment uses a variety of technologies like high-resolution cameras, steady LED light, best ejection systems, and human-friendly UI.

These are the reasons; sorting and recycling based on colors are now proven valuable techniques for recycled plastic flakes.

Color Sorter With Plastic Flakes


Plastic sorting machines are commercially available in the market, which helps to refine material fast.

There are different features that elaborate on the importance of a sorting machine.

→1.  Advance technology used in machinery;

→2.   Durability;

→3.   Corrosion-proof;

→4.   Uninterrupted, reliable performance;

→5.   Robust construction;

→6.   The high-resolution camera helps to find waste particles easily;

→7.   Ejector;

→8.   Availability of touch system human-friendly interface;

In 2019, recycling plastic deadly needed because waste plastic can cause pollution.

Plastic recycling is complicated as compared to other materials like paper, glass, and aluminum.

Why is plastic more difficult to recycle?

Because plastic is a mixture of different kinds of polymers fiber, polymer requires more energy and process to recycle.

Different types of plastic have different properties, so be careful when you want to separate waste material.


The disposal or recycling process of plastic waste has emerged these days because plastic is a non-degradable material.

As you know, Plastic cannot decompose naturally, so we need to manage it by sorting and recycling process.

The plastic sorting process managed the mess of plastic around us and especially on sea beaches.

What percentage of plastic is recyclable?

In 2015 it was estimated about 55% of the world’s plastic waste was disposed of, 20% recycled, and 25% burned.

You can get a decent idea from the above data in 2019 of how much plastic we need to recycle.


Plastic is one of the important things these days, now we use it 25 times more than 50 years back.

So we need to handle plastics responsibly to minimize the pollution in the environment.

We can manage waste plastics by recycling and reusing them at a very reasonable cost.

Different types of plastics we need to recycle

  • Sorted by polymer type
  • Melted
  • Shredded
  • Washed
  • Made with new products.



Typically recycling of plastic is a two-stage process

1- Manual procedure in which we can sort plastic automatically and remove contaminants.

2- Once the process of cleaning is completed, it can shred into flakes

If you want to deliver quality products in a short time you need to rely on machines, it will help to maintain customer satisfaction.

plastic sorting process

Graphic: Typical Plastic recycling Process

Automatic Sorting Technique Boost the Quality

An automated system of sorting plays a vital role in ensuring quality products for distribution in different organizations.

Plastic sorting manufacturers now know the value of the time they want speed, capacity, and accuracy; automatic sorting machinery brings this to a production line.

Plastic Sorting Process

Graphic: Plastic Sorting Process

If you have any doubts about the advantages of the automatic sorting technique, then continue reading.

Increased efficiency

Automatic sorting machines, help to perform constant processing in repetitive motion with the same quality and standard.

Also, it helps to reduce the ratio of accidents and injuries during the sorting process.

By automatic sorting, you will get 100% better-sorted products as compared to manual hand-handled sorting.

Fantastic benefit: Operating auto machinery allows workers to learn more updated skills.

Lower costs 

Automatic sorting is a cost-effective process and provides enormous benefits to manufacturers.

Auto sorting is a fast process and maintains efficiency and standard in a short time and on a small budget.

Simple is that saving the budget impacts the business is a logical thing.

Automatic sorting equipment improves energy use management as well as saves enough budget for the lower-wage cost.


Improved accuracy

As you know, accuracy and precision is a significant factors in the sorting process.

Auto sorting machinery is safe from human errors and operates quickly; output is a high-standard product.

Better quality always attracts more customers, so automotive machines are far better in comparison to manual sorting machines.

Sorting machines can operate quickly and more cost-efficiently while ensuring the quality of the product is never compromised.

1.3 Which Process Needs A Color Sorter?

The Plastic Recycling Process

Plastic sorting and recycling is the most uncomplicated process in which different steps, including:

1- Collecting

2- Shredding

3- Washing

4- Melting

5- Pelletizing

This is a matter of fact, a different type of plastic product needs a different process of sorting.

Normally the plastic recycling industry follows these two steps:

1- Choose the automatic sorting process or manual to remove all wastes from the plastic material.

2- You can melt plastic material directly and form a new shape or shred it into the flakes.

– The Type of Recycling Plastic

There are six types of recycling plastics, have a look at some of the example products.

PP (Polystyrene)- 

It can be solid or foamy like lunch boxes, food containers, hotpot, or ice cream containers.

PVC (polyvinyl chloride) 

This is a low flammable material, resists most of the chemicals like juice bottles and squeezable bottles.

PS (Polystyrene)

Form of plastic used in laboratory equipment, hot drink cups, plastic cutlery, and yogurt containers.

PET (Polyethylene terephthalate)

The most common thermoplastic polymer, also known as PETP and PETE generally used in the fiber of clothing, fruit juice bottles.

LDPE (Low-density polyethylene)

It was the first grade of polyethylene, used in toys, Shampoo bottles, carriage bags, garbage bins, and squeezed bottles.

These days PETE, HDPE, and PVC thermoplastic are recycled efficiently, but PS, PP, and LDPE are sometimes stuck in sorting machines.

Which products can be recycled or not is a big question when we discuss plastic sorting & recycling some types are not allowed to be recycled.


Chapter 3: Plastic Recycling machines

Both color sorter and plastic recycling machines are used in plastic recycling. The best thing is both equipment work together will create higher value and provide better quality products.

“The two machines are different. The plastic recycling machine is used to the process that gets plastic waste to plastic granule, and the other equipment is applied to the process that separates the different colors.”

3.1 PET Bottle Recycling System

PET bottle recycling is nowadays widespread also become more efficient.

A lot of plastic is used in different products and can be remade to utilize again and again.

Plastic recycling helps to reduce environmental pollution, save energy, and help to deal with the emission of carbon dioxide.

PET Bottle Sorting Machine

  Figure: PET Bottle Sorting Machine


Plastic Recycling Process

The plastic recycling process is divided into different steps. These steps are the same for many recycling processes, but a few steps can be combined or omitted in some conditions.

1. Collection

The initial stage in the recycling procedure is always collecting the plastic material that will be recycled.

This step is dependent upon organizations, restaurants, and the general population to discard their plastic waste in the right spot.

If plastic waste is disposed of in ordinary trash bins, it won’t be recycled, so it is critical to isolate the regular waste and plastic waste.

Moreover, it is ideal for governments to have a recycling collection system that goes to individuals’ homes or organizations to collect plastic waste.

If this is not possible, the local collection focuses on plastic ought to be simple for the public to make it useful and easy for people to dispose of plastic waste accurately is paramount in advancing recycling.

As we know, you will collect lots of types of plastic in the plastic collecting process. But most plastic can not be recycled.

In PET bottle recycling processing, this sorting process is not necessary.

If you use a Plastic color sorter PET bottle contains three parts: cap, bottle body, and plastic label.

Once the bottle breaks, the color sorter can separate the bottle flakes and cap according to their color.

 2. Washing

Just like with garments, organic products/vegetables, and numerous different things, plastics must be washed before they are additionally handled.

The objective of this step is to expel impurities and everything that isn’t produced using plastic.

Most containers and packages have marks or labels, adhesive, or even food residue that must be evacuated.

This non-plastic waste can’t be recycled and can make the final product have poor structural integrity.

NIR Technology Features

Integrated MMI

-NIR sorter provides more comfort when it attaches to the high-resolution touch screen

-Fast Sorting Technology

-The NIR sorting technology is integrated with proper equipment to avoid noise and for better quality and accuracy.

-NIR machines help to separate the type of plastic according to the material.

On the other side, sorting with a CCD camera is also an efficient way. Still, it can sort your products according to the color difference.


Resizing comprises shredding or crushing the plastic waste into little particles.

It expands the surface area of the plastic, making it simpler to process, reshape, and transport if necessary.

Moreover, it gives recycling facilities one last chance to remove any non-plastic waste that has endured the initial three stages of processing.

It frequently is done with metal detectors or magnets that will help to remove any remaining metal in the mixture.

Identification and Separation of Plastics

The identification and separation of plastics is the point at which the little plastic particles are tested to decide their quality and class.

The first quality test is density. It finished by floating the particles in a huge tank of water.

Particles less thick than water will float, and increasingly dense particles will sink.

Next, their air classification was resolved. Air classification is a term for how thin or thick a molecule is.

The process mentioned above, is completed by dropping the particles into a little wind tunnel. The small pieces will fly higher up the tunnel, and the greater ones will remain lower.

Two different features of plastics usually tested for are their melting point and color. These are controlled by collecting and analyzing samples from each group of plastic particles.


The last step in the recycling procedure is often considered the most energizing since it is the point at which the plastic particles made into recycled materials are used for future production.

Compounding is the point at which the little particles are crushed and melted together into plastic pellets.

The pellets can then be able to use in the creation of other plastic products.

Throughout this procedure, the plastic might be moved to various plants that have practical experience in multiple steps of the process.

It could be energy-intensive, and the better instructed we are about the procedure, the more we can reduce the time and energy it requires.

Recycling of a Plastic Bottle

Suppose that you have quite finished drinking water from a commercial disposable (however recyclable!) water bottle.

As you place your unfilled water bottle into your home recycling bin as you generally do, you wonder,

“What will happen to this water bottle after I’m done with it?”

In the first place, your bottle must gather by a recycling facility.

It can happen when recycling assortment drivers get your plastic recycling bin on your check before your home, or when you carry your recyclable waste to a local recycling office.

Next, if your local recycling organization has executed a Single Stream Recycling System, by which all materials are gathered together, these materials must experience an arranging procedure to isolate various materials, for example, glass, paper, or metals.

Regularly, most of this arranging procedure is done naturally by machines.

Yet, it might also incorporate one manual sort to dispense as much contamination of the materials as could be expected.

Since there are various sorts of plastics in use today, the entirety of the plastic materials in a recycling office must be isolated by type.

Your plastic water bottle will probably be assembled with the other plastic materials made with #1 polyethylene terephthalate (PET or PETE) plastic.

Unfortunately, particular sorts of plastics are not as effectively recycled as different kinds of plastics.

Many recycling offices don’t have equipment that can deal with each type of plastic.

Thus these things might be offered to another office that can recycle them, or they may wind up in a landfill.

Next, your water bottle will go to the area of the recycling office where it will be ground up into chips or pieces. And the plastic will then be washed to dispose of any label or remaining buildup.

The plastic is dried, softened, and shaped into pellets, which can use for assembling new items.

Recycled plastic pellets would then be able to be offered to organizations and used to make various items.

A few items produced using recycled plastic bottles incorporate artificial fleece, designed wood items, covering, floor mats, tiles, furniture, engine oil, cleanser bottles, pipes, and buckets.

Your water bottle will presently be given another life as something different! Plastic bottle recycling is then certainly worth your effort.

3.3 Film Recycling System

Film products tend to be classified either by their composite materials or by wide product groups. The Packaging and Films Association (PAFA) uses three expansive item definitions outlined below regarding their use in household packaging applications.

Plastic Film

Generally made as sheet material, for example, stretch and stick wrap for food protection and bundling.

Plastic Bags

A wide range of packs from buyer items, for example, sandwich/ freezer bags to transporter packs given by retailers.

Plastic Pouches

These are used in food packing and are generally sealable and sufficiently strong to be self-supporting.

The material helps keep items fresh, along with extending their utilization by date and preventing contamination when handled.

It is hard to decide every polymer type utilized by the sector because of the variability in packaging film qualities, yet dependent on the data assembled polyethylene (PE), both as low and high-density PE, is the most widely recognized.

Household Plastic Film 

Composite plastic films used for the packing of food, it can be produced from layers of various polymers. It might be bonded with different materials such as aluminum foil. Added substances can be applied to, for instance, seal in moisture.

The most famous biodegradable plastic is Polylactic Acid (PLA). Oxo-degradable plastics are ordinary polymers with added substances advancing degradation after some time.

Towards the beginning of the sorting procedure, plastic film was handpicked out of the recycling stream. While the extra work is costly, especially as the recouped film is of little worth, it is crucial to evacuate this material as soon as possible.

If a pickers miss a film bag toward the beginning of the procedure, it can get folded over the MRF’s fiber sorting screens.

When the screens become obstructed by the plastic film, their capacity to sort materials decreases, which reduces material quality after some time as the examples of pollution increment.

In extreme cases, the screens become seriously blocked and need intensive cleaning, which causes plant downtime.


-The film system is specially designed for washing plastic films with contamination levels, which exceed 80%. It minimizes the recycling water flow rate and evaporation.

-The pre-treatment module of the framework is equipped wear-resistant design to amplify structure uptime.

-Pre-shredding and pre-washing frameworks expel an enormous level of rough materials (sand, grits, and so on.) to protect the rest of the framework.

-Shredding framework is designed mainly for film materials to make a uniform molecule size, which is simple for washing and drying.

-Underwater force-washing paddles in our washing tanks expand the washing productivity.

-The drag chain discharge device controls the material discharge speed and limits the water volume sent to the drying procedure with the item.

-Mechanical (diffusive and crushing) and warm drying systems control the moisture substance of the finished product.

-At < 5% moisture, the material is reasonable for top quality pelletizing.

-Shredding, fast washing, and drying stages are streamlined to avoid over-processing, which can cause material disaster.

Problems with Film Recycling

The recycling segment faces a consistent issue with contamination by materials that can’t be recycled being stirred up with recyclates.

Plastic film and bags are reasons for contamination; however, different things, for example, crisp parcels, dirty nappies, and unwashed glass jars or plastic tubs, are main issues.

Plastic bags are produced using thin, flexible sheets of plastic film, ordinarily under 10mm thick.

At the point when these thin plastic films enter a conventional materials recycling facility (MRF), they can truly harm the proficient activity of plant and machinery.

The creation of films and their high rigidity implies that such materials can immediately get wrapped or tangled around moving or spinning apparatus.

3.4 How does a colour sorter work in a plastic recycling system.

The plastic sorting machine is specially designed for the removal of impurities and separate the plastic by color and its types in a quick way.

A belt-type plastic color sorter machine is designed to sort and separate different colorful plastic recycling flakes.


-Intelligent CCD multi work belt-type color sorter can not just meet the scope of chute type color sorter, yet additionally can sort the material for ethereal, unpredictable, effectively broken, exceptionally wet material, which have explained the little gravity speed brought about by lightweight of these extraordinary materials.

-Suggested Applications: Recycled Plastics, Best for light PVC, PP.

-The belt speed could be up to 4m/s, which can meet the requirements for the sorting output.

-Full-colour line scan technology 2048 combines the material’s colors and shapes. It could provide both color sorting and shape sorting for various materials. The varieties of sorting colors can set freely.

The optical color sorter is designed to deliver the best performance in the most challenging environments:

  • Operating and feeding system
  • Valve driven mode and original natural blowing nozzle
  • The ventilation system and unique air suction
  • Wide conveyor belt
  • The light source processing system
  • Operating system
  • Cooling system
  • Image processing


Machines to be packaged to endure transportation under severe conditions. The handling instructions designed to protect the machine in the harsh moments during transportation, uploading, and installation.

SG Is A Professional Plastic Color Sorter Manufacturer

SG is an experienced professional plastic sorting manufacturer based on different, highly recommended technologies.

The company provides long life, reliable service.

Types of color sorting equipment offered by the SG are

1.  Chute-Type Plastic Color Sorters;

2.  Belt-Type Plastic Color Sorters;

3.  NIR(Near-infrared) Plastic Sorting Machine;

4.  X-Ray Plastic Sorting Equipment.

If you want to get reliable sorting equipment to sort crops, grains, and plastic, etc., then SG is a primary choice in China.

SG worked with High-end technologies, efficient speed ejectors, and CCD high-resolution cameras to get high-quality products.

You don’t know how you get to increase your business revenue with automatic sorting equipment. Don’t worry, SG support team will coordinate with you.

Check SG never compromise on safety standards and quality values.

Don’t confuse about the shipping procedure or installation of the system; you can approach the SG for any query.

One year warranty is the best feature of the SG at a reasonable price.

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