Lightweight construction

Save costs, increase efficiency and conserve resources with lightweight construction: Use innovative injection molding processes such as fiber direct compounding (FDC) and physical foaming with MuCell®.

Benefits at a glance


Innovative products – cost-efficient, economical with materials and with a low carbon footprint? Pioneering lightweight construction processes have great potential.


Reducing part weight while maintaining or improving mechanical properties is your ambitious goal. And fiber-reinforced or foamed parts are two possible solutions.


How to make significant cost savings? Through optimized part design, reduced weight and the combination of different lightweight construction processes and materials.

In partnership

ARBURG is your partner. And active in networks that develop and optimize processes and materials. In addition to the technology, we also offer comprehensive technical advice.

Benefits of the FDC process

Reduced costs

Reduced costs

Combining carbon or glass fiber rovings and plastics such as PP, PA, PET and PC/ABSs is up to 40% cheaper than special glass fiber-reinforced PBT, for example.

Control system

Control system

The FDC process is fully integrated in the control system and dedicated symbols enable the process to be programmed easily and flexibly.

Gentle plasticizing

Gentle plasticizing

A special screw geometry enables gentle preparation of the melt and a high proportion of long fibers in the part. With an additional thermoplastic cylinder module, the ALLROUNDER can also be used for conventional injection molding.

Direct compounding

Direct compounding

Continuous fiber strands are cut to the desired size via the lateral feeder and fed directly into the liquid melt. Mechanical part properties can be selectively influenced.


Fibre direct compounding

With the FDC process, you are free to choose the fiber length and proportion, meaning that you can selectively influence the part properties. The benefits for you? You can substitute more expensive materials and produce lightweight yet resilient parts.

Sample components


Cable drive housings made from PP with 30% long glass fibers (incinerated on the left) produced in the FDC process have a resilience similar to that of parts made from PBT and are also 30% lighter.

Garden shovel

If gas or water is introduced into the mold cavity using fluid injection technology (FIT), cavities can be created in the part. This significantly reduces materials and cycle time.

Turnkey projects

Automated production cells from a single source

Want to increase added value, optimize the injection molding process, automate further, and integrate innovatively? Then we are your partner as a primary contractor. As we already are for many leading companies worldwide.

More about turnkey consulting

Info material

Lightweight construction

Want to know more? You can find more information on the topic here.

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Whether in injection molding or additive manufacturing: with our machines, you can process all commercially available plastic granules and original materials.

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