2340 Industrie Recycling Kunststoff
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Sorting materials and removing contaminants in the plastics recycling industry

Addressing climate change and establishing a circular economy are some of the top priorities of our time. These projects present manufactures, processors, and recyclers of plastics with a variety of challenges, but also offer numerous opportunities. The global approach to plastic must be rethought –  from legislation, to the development of new packaging materials, to innovative recycling technologies and use concepts.

Recycling saves energy, and used plastics are often cheaper than virgin material. Furthermore, each ton of recycled plastic used in place of comparable virgin material saves between 1.45 and 3.22 tons of greenhouse gases. However, recycling used plastics is only a profitable venture if the material has previously been separated into homogeneous fractions by color and type in order to live up to high quality standards. Our sorting systems are there to handle the job – sorting PET, HDPE, PE, and PVC with precision, reliability and efficiency.

Sesotec is one of the leading specialists in industrial plastics-sorting machines and systems. Our systems reliably differentiate between materials using various types of sensor technology and efficiently separate material flows into homogeneous fractions by color and type.

Material analysis systems from Sesotec are used in quality laboratories to inspect outgoing goods. Previously, material analysis had to be carried out in a time-consuming, manual process. In just a few minutes, Sesotec analysis systems generate consistently high-quality and reproducible reports on the composition of plastic types and color errors. 



Product examples of our customers
Sesotec's strengths
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over 40 years of experience and reliability

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Personal support in the after-sales area

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Service-Hotline

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Long-term reliability for spare part supply

Click here to discover our systems for plastics processing and compounding



Details  

Why is plastic recycled?

Plastic is produced mainly from petroleum, which is a finite resource. Plastics that are not recycled end up in landfills or in the environment, where they serve as long-term sources of pollution, since they do not decompose or do so only very slowly. It is therefore necessary to recycle plastic waste in an eco-friendly way or to at least recover thermal energy through incineration.

Recycling helps businesses that process plastics become more independent of fossil feedstock and cushion the rising costs of raw materials. Recycled plastics can serve as an equivalent substitute for new, crude-oil-based materials in many applications. In addition, they can be recycled in many ways. For example, PET bottles can be turned into PET bottles (bottle-to-bottle principle) and textile fibers, polystyrene can be turned into pens, and CDs can be transformed into computer cases.

 

What are the challenges?

Plastics collected for recycling must have a high degree of purity. Only then can they be economically recycled and introduced back into the production cycle as high-quality materials. However, sorting certain plastics can place complex demands on the sorting system. Our separation and sorting systems remove contaminants, such as metals, wood and extraneous plastics, from the material and separate mixed material flows into homogeneous fractions by color and type. To ensure safe detection, the systems are equipped with features such as near-infrared sensors and high-resolution CCD cameras.


Sesotec also offers complete small-scale plants for plastic flake sorting with screening, air classification, optical sorting and material handling


What are the advantages of our systems?

Sesotec has been one of the market leaders in the field of contaminant removal and sorting technology for more than 40 years. We develop standard solutions as well as complete custom solutions for plastic recycling companies in particular and cover the entire range of contaminant removal and sorting. This extends from a sorting system designed to handle larger objects, such as PET bottles, to the intricate sorting of plastic regrind and PET flakes.

Our sorting systems work with precision, speed and efficiency. Better material quality, greater throughput levels and less loss of material increase added value. As a result, the purchase of equipment amortizes rapidly. The machines can also reliably handle complex sorting tasks. They are used to pre-sort materials, perform quality checks, as well as sort or separate the following:

  • Colors
  • Metals
  • Plastics, such as PET, HDPE, PVS and many more
  • Contaminants, such as wood, paper and bioplastics

All Sesotec systems have a modular design. Depending on the application, the components that are necessary for a specific sorting task can be combined in one machine.

 

What products or materials are sorted?

Sesotec systems sort plastic bottles and cups, as well as plastic regrind and “flakes” − plastic pieces that are created during the process of recycling PET bottles. A granulator shreds the bottles at the recycling plant. After this step, the sorting system separates the pieces by color and removes contaminants. This results in homogeneous granulate based on color and type, which can be turned into new, high-quality products. Recycling rates of up to 100 per cent are possible with the use of Sesotec systems for recycling plastic.

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ebook circular economy 2021 preview

White Paper

The circular economy: Challenges and opportunities for Recyclers and plastics processors

The plastics industry is under pressure. Between climate change, excessive consumption of finite resources, and vast amounts of plastic waste in the world’s oceans, plastics are coming to be seen in a different light by politicians, businesses, and consumers alike. Read in our e-book about the most important factors of a functioning circular economy, especially which challenges and opportunities exist for recyclers and plastics processors.

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Case Studies

Optical sorting is the core of the recycling cycle
Green Mind recycling

Case Studies

Green Mind relies on Sesotec sorting systems for PET Flakes in highest quality
rejeki flake purifier

Case Studies

Sesotec sorting technology replaces manual sorting of PET flakes
B T B recycling anlage

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Waste reduction with Sesotec sorting systems
tong yi sorting

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Taiwanese company automates plastic bottle sorting
varisort compact

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Reliable sesotec sorting systems convince RecyPET
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MB-Sort – Recycling of metal waste and plastics with Sesotec VARISORT COMPACT sorting system
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Case Studies

Sesotec sorting systems secure supply of recycled PET material
Multi P E T Flake Purifier plus Sept2019

Case Studies

High-quality PET recyclate for the plastics processing industry
reiling1

Case Studies

Reiling Plastic Recycling will do whatever it takes to produce the purest flakes
Reiling is prepared to fulfill this need, offering an entire range of services from collection (full service or DIY), to processing (converting bottles to flakes), to creating carefully controlled end products. For those who will eventually buy the flakes, color and material purity are of central importance, as high-quality starting materials are needed to manufacture new products.
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Industry Brochures

All about PET
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Product Brochures

GF

Metall-Separator für pneumatische Förderleitungen

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C-SCAN DLS

Splitable metal detector for installation on conveyor belts and material chutes

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FLAKE PURIFIER+

Multi-Sensorsortiersysteme für die Kunststoffrecycling-Industrie

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VARISORT

Multi-Sensorsortiersysteme für die Recycling-Industrie

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VARISORT COMPACT
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FLAKE SCAN

Analyzing system for the plastics industry

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VARISORT+

Flexible sorting system for plastic bottles and trays

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VISUDESK

VISUDESK, the new visualisation software for sorting machines, makes your sorting processes transparent and enables direct control for higher efficiency and higher profitability.


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