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Picture shows Circular Economy at ENGEL

Circular Economy in injection moulding

Reduction of the CO2 footprint through efficient plastics recycling

ENGEL has been active in the area of the Circular Economy for years.
By processing recycled materials, it is possible to reduce CO2 emissions and produce more sustainably. Our services range from free material analyses to digital products and innovative plastic recycling processes.

30% savings in CO2, energy and costs in plastics recycling

Plastic is a valuable resource. Far too valuable to dispose of after a single use. Therefore, it is important to manage it in cycles.

With ENGEL plastics recycling technologies, a new energy-saving plastics cycle can be closed. Direct processing of regrind on the injection moulding machine saves costs, energy and CO2.
"Design for recycling" is also made possible. At the end of their service life, our customers' products are returned to the cycle.

Advantages with us as a partner in the area of Circular Economy
Recycling package enables regrind processing
Picture shows wear-resistant plasticising unit from ENGEL

Our recycling package enables trouble-free feeding, even of poorly flowing materials such as regrind, by means of modified plasticisation. The wear-resistant material design guarantees extended service life. Thanks to the feed grooves, optimised conveying and melting behaviour is achieved.

Consistently high product quality despite recycled material
Picture shows cross-section of a box made of plastic recyclate

The processing of plastic waste usually requires less energy than that from fossil sources. The use of recycled material therefore has a direct positive effect on the CO2 balance. This is why ENGEL's in-house development focuses on solutions for recycling and upcycling. ENGEL offers the plastic recycling processes skinmelt, co-injection and the two-step process. In the first two processes, the recyclate is coated with virgin material. In the latter, the regrind is processed directly and degassed and filtered in the injection moulding process. This means that up to 100% recycled material can be used as feedstock.

Free material analysis and process-safe processing
Picture shows regrind for plastics recycling

As part of a free material analysis of the recyclate, we check the process-safe processability on our machines for you in the laboratory. Later, our assistance systems ensure the greatest possible process stability. Together with R-Cycle, we enable the traceability of the materials used in a digital product passport.

No odours, streaks or moisture residues in the component thanks to degassing
Picture shows bumper of a car

Volatile components in the material such as gases or moisture are eliminated with our integrated degassing. Degassing enables a wider range of recyclates to be used, component quality without streaks and less tool build-up. Odour pollution is reduced enormously. Especially with lacquered components, you achieve beautiful surfaces thanks to degassing.

More safety thanks to filtration of the melt
Picture shows possible contamination such as paper, metal or wood

Filter systems reliably remove contaminants from the recyclate. Depending on the design, they protect plasticising, hot runner and mould. Suitable filter systems are offered for different degrees of contamination. This prevents clogging of the mould, hot runner and sprue channels by foreign parts.

Digitalisation to increase energy efficiency
Image shows digital solutions from ENGEL

The self-optimising injection moulding machine is a key driver of Circular Economy. It is about avoiding rejects and increasing energy efficiency. Our digital solutions from the inject 4.0 programme help to automatically reduce influences on the process. Recyclates can thus be used for a wider range of applications than before.

Our solutions for the processing of recyclates

For more success of your circular business model

With our broad portfolio, we close material cycles together: ENGEL supports you with production cells to process recycled materials. Our offer ranges from free material analyses and digital products to innovative plastic recycling processes. With the recycling package or the two-stage process, regrind can be processed more easily, safely and consistently. Our processes support the required recycling rates and design for recycling.

Picture shows CTO at ENGEL Austria

Circular Economy is based on the interplay of all market participants. In order for the process chain to function seamlessly, it is important that each individual step within the overall process is economical. At this point the circle closes to the optimisation of energy consumption, CO2 balance and thus the cost structure. The plastics industry must act quickly and take advantage of the opportunities opened up by innovative technologies.

Gerhard Dimmler, CTO bei ENGEL Austria
Innovative projects in the area of Circular Economy

Direct processing of regrind using a two-step process, 100% recyclable e-bike frames, Frisbees made from old collected caps and transport boxes that consist of over 50% recycled material inside: We develop Circular Economy solutions for and with our customers that also prove themselves in practice.

    • technical moulding
    Closed recycling loop in injection moulding

    In the 2-stage plastic recycling process, dolly pallets are made from recycled plastic flakes. Plastic waste is processed as flakes directly after grinding.

    • technical moulding
    100% recyclable e-bike frame

    The first pure injection-moulded bicycle frame with advanced thermoplastic composites is 100% recyclable.

    • technical moulding
    Transport boxes with recycled core material

    With the help of ENGEL skinmelt technology, up to 50% recycled material can be used inside the transport box.

    • technical moulding
    Frisbees made from recycled caps

    The drink stoppers collected on the JKU Linz campus were recycled and made into Frisbees, demonstrating circular economy with a simple example.

Picture shows Team Leader Circular Economy at ENGEL Austria
How can we help you?

Our experts will be happy to provide you with comprehensive know-how on the topic of Circular Economy and plastics recycling.

Picture shows injection moulding machine for two-stage process
Customer AVK uses ENGEL's two-stage process to increase efficiency

ENGEL's two-stage process means that a complete process step can be saved when processing plastic flakes, because the recyclate is processed in the injection moulding process without granulation. The company AVK Plastics BV uses this technology to produce new pallets from recycled material. This technical innovation increases efficiency in production and saves valuable energy.

More about Circular Economy at ENGEL
Solutions for the circular economy

Image shows energy efficiency subject by ENGEL

Reduced CO2 footprint

Fully exploit energy-saving potential: Reduce your energy consumption by up to 67% with an efficient overall system.

Picture shows recycled material

Injection moulding for recycled materials

More safety and consistently high product quality despite recycled material.

Picture shows recycling package from ENGEL

Recycling package

Constant direct processing as well as optimised conveying and melting behaviour of recyclates thanks to modified plasticising unit.

Image shows digital solutions from ENGEL

Avoid scrap

Our digital products and service solutions support you along the entire product life cycle. From component design, through sampling and production, to maintenance and service.



Write to us

The ENGEL team will be happy to assist you with comprehensive know-how on the subject of injection moulding.

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