We sort polymer granules to obtain highest purity.

Finally the time has come!

Optical Sorting now has a DEKRA Certified Co2 Balance

You can now use our CO2 calculator to calculate contribution you can make to CO2 savings and sustainability for your company by using our sorting processes.
By clicking on the link you will be redirected to our CO2 calculator.
Not only you should make your contribution, but we are also striving to constantly improve our CO2 balance. Therefore we have formulated internal measures and goals.


During the manufacturing of polymer granules, optical defects reduce the quality of the final product. If you are looking for a solution to these problems, you are in the right place. At Optical Sorting, we help companies like yours bring back the original value to your product.

How do we do it? Muy sencillo, gracias a la separación óptica detectamos y eliminamos todas las imperfecciones ópticas y garantizamos una pérdida mínima de material. The result of this process is high-quality impurity-free polymers ready for industrial use. Would you like to read more and get to know us a little better? Together, we’re sure to find the best way to purify the plastic you produce.

Optical sorting


We offer the following sorting methods.

separador de impurezas


Identify your problem and we’ll solve it.

Optical sorting


We are polymer specialists.

separador de polimeros


We guarantee the
maximum purity

optical sorting


Our services, where and when you want.

Would you like to see how we enhance the value of your product?

Why do our customers choose us ?

As we like to say, “It’s not a trick, it’s our team.” At Optical Sorting, we are specialists in polymers and we have many years of experience in the plastics manufacturing industry. This is why we have been helping customers like you enhance the value of their products since 2000.

Would you like to know how we do it? Well, keep reading; a little further below you’ll find everything you need to know about our solutions. Remember that if you have any questions, you can always call us or send us an email. We will be very happy to help you!

How do we purify polymers?

We know that the quality of your polymers is very important. That’s why we use cutting-edge technology in all our services. It’s the only way we can ensure maximum purity of plastics that pass through our hands (or better said, our equipment!). Click on the services we offer to find out which is the best for you.

optical sorting machine

Using a high-resolution linear camera, we detect and eliminate any optical defects with air shots. This means that we analyse aspects such as colour or shape to detect and eliminate impurities, thus obtaining top quality materials free of imperfections ready for industrial processing. 

optical sorting system

The product is dedusted with countercurrent air in a conical separator. To reduce the electrostatic charge we use ionised air.

optical sorting machine

With an inductive metal separator we remove the smallest metal particles (NE + FE) from 0.35 mm (FE-Ball).

optical sorter

With the specially developed double-deck screens, we remove larger particles such as long or double granules as well as smaller particles such as fines or broken particles.

How do we ensure our quality?

  • With a know-how that lets us reach purity levels of 0.02 ppm according to your specifications or ours

  • With qualitative inspections

  • With result reports

  • With a quality certificate

0,1 mm

Optical detection starting at 0.1mm

0,02 ppm

We guarantee the highest purity levels

0,35 mm

Metal detection starting at 0.35mm

Say goodbye to impurities

Identify your product’s impurity in our gallery, select it and we will take charge of eliminating it.


Black spots


Cross contamination

doppel granulate

Double granules





Metallic particles



Don’t have time to read more now? No worries. If you want, you can leave us your telephone number and we’ll call you as soon as possible.

0 Kg
1 %
1 t

Where do we offer our services?

You choose: in your house or in ours!

Do you want to reduce you carbon footprint?  

We know that contributing to sustainability is a fundamental goal for you and your company. That's why we provide you with the Optical Sorting calculator, a tool that will help you find out how much you can save in CO2 through our service.

Partnerships make us stronger

Thanks to cooperation with Karl Schmidt Spedition GmbH & Co. KG, our longtime logistics partner, we’re able to offer our services at their main European branches.

We go wherever you want: Mobile Sorting Unit

If you’re the type that prefers we come to your facilities, we can visit you with our Mobile Sorting Unit and solve your problem on site.

When do we start?

Dirk and Maurice, from Germany, and Carlos, from Spain, are ready to provide you with a specific solution to enhance the value of your product as soon as possible. If you’d like to contact us personally, you can call us or send us an email. We’d be very happy to help you! If you’d like to contact us personally, you can call us or send us an email. We’d be very happy to help you!


Maurice Wieder

Production Manager
+49 2836 900164

Dirk Pritzl

General Manager
+49 2836 900164

Carlos Cuevas

Plant Manager Tarragona
+34 877 012 919

Would you like us to call you?

If you don’t have a lot of time to talk to us on the phone, you can complete the following form and we’ll contact you as soon as possible. Thank you!