DIEFFENBACHER LFT-D technology opens up new opportunities

More throughput and flexibility for new applications and components

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By increasing the flexibility and throughput of its LFT-D plants,
DIEFFENBACHER is helping thermoplastic component manufacturers
capitalize on increased demand for their products.

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E-Mobility and the Circular Economy are two global trends boosting
demand for thermoplastic processes and components made of
thermoplastics. Fiber-reinforced thermoplastics offer the ideal properties for
applications such as battery cases for electric vehicles. In addition, unlike
thermosets, thermoplastic components can be produced from recycled
materials such as production waste or product returns.
Thermoplastics are also ideally suited for the production of structural
components with local reinforcements, for example, through so-called UD
tapes (Tailored LFT-D). LFT-D technology is also used for formwork
elements, floor panels and other components for the construction industry
and logistics applications such as pallets or load carriers. The process is
also used in the sports sector; the construction of racing boats is just one
example.
To produce these and similar components economically on a large scale,
DIEFFENBACHER has increased the flexibility and throughput of its LFT-D
plants. This added flexibility allows the use of recycled polymers while also
increasing plant performance.
DIEFFENBACHER LFT-D plants typically use a two-machine technology
with two extruders whose parameters such as speed, temperature, etc. can
be set independently of each other. In the first extruder, plastic and
additives are melted and processed into a homogeneous mixture, while in
the second extruder the glass fibres are retracted into the barrel, cut and

impregnated with the polymer. This material-friendly separation of the
process steps is essential for the production of high-quality components
with long fibers. To make this conventional LFT-D technology more efficient
and flexible, new and expanded DIEFFENBACHER lines have larger
extruder pairs specially designed for the use of different thermoplastic
materials.
Another benefit of the new LFT-D technology: in combination with other
processes such as the DIEFFENBACHER Tailored-Blank technology,
manufacturers can produce components with sophisticated mechanical
properties. The patented plant technology enables the material-efficient
and load-dependent use of UD tapes. Back-injection molding in closed
compression mold or hybrid solutions provide further possible
combinations.
Whether as a new installation or as conversion of an existing plant,
DIEFFENBACHER LFT-D technology creates new ways to profitably sieze
on the opportunities presented by E-Mobility, the Circular Economy and
other global trends. Pure increases in performance, more flexibility in input
material or a combination of both are among the advantages.
Discover more information about the possibilities of DIEFFENBACHER
LFT-D technology at
https://dieffenbacher.com/en/composites/technologies/lft-d.