Co-rotating twin-screw extruders for high-performance technical plastics, with machine sizes from 18 to 82 mm and throughput ranges from 4 kg/h to 4 tons/h, designed to meet customers’ production needs.

An identical production concept at every location worldwide means uniform production conditions, equivalent products and a minimum of spare parts stocking. Not only is it possible to reduce the costs, the ratio of quality to price is increased as well. The flexible systems used here adapt quickly and easily to changes in customer requirements. Sustainability and energy efficiency are a matter of course for us. FEDDEM has developed the standardised machine concept ICX® Technology (Innovative Compounding and Extrusion Technology) in partnership with its sister company AKRO-PLASTIC.

Especially for the production of lighter functional parts for automotive applications, sports and leisure and the construction industry as well as for safety and functional equipment, the new generation of FEDDEM FLF PT pultrusion lines offer enormous advantages over conventional LFT compounding lines.

The special FEDDEM method not only halves changeover times when threading new rovings but also ensures tight tolerances in glass fibre content in the produced pellets. With FEDDEM’s ICX® Technology and its application to FLF PT turnkey lines, you can produce long fibre compounds based on engineering plastics more economically, more gently and with greater flexibility.

FEDDEM offers a range of auxiliary devices for ensuring smooth continuous performance of feed and degassing openings in the processing section. These devices are equipped with twin-screw discharges and frequency-controlled drives. Various speeds and screw pitches as well as a selection of metallurgies for abrasion and/or corrosion resistance allow to adapt these devices to individual process requirements.

To optimise the side streams in the compounding process, FEDDEM has developed a modified FSB side feeder, which sucks air out of the metered side stream before it enters the extruder. When adding materials with lighter bulk density, this enables a considerable increase in the throughput rate of the entire process. Compared to conventional side-feeding of low-bulk-density additives, the throughput of the compounding line could be increased several times over. In some applications, economically viable production rates only became feasible with the use of an FSB-V side feeder.

The FEDDEM Extension unit (e.g. 10 L/D long) allows for easy modification of an extruder´s length to match the requirements of an individual process. Changing the processing lengths just takes a few hours. This offers the option of adapting the processing length of an extruder from a compounding application to large-volume venting / degeassing or to reactive processing. Subsequent retrofitting of FEDDEM extruders to a longer processing length is an option and entails substaintially lower investment costs compared to sourcing an additional extruder.

Beard formation and product residues at the die outlet often pose a major challenge in the compounding of plastics.
This phenomenon, known as beard formation, occurs with a wide variety of polymer compounds. The FEDDEM Automatic AirBlade (FAA) reliably removes product residues, ensures seamless production and guarantees consistently high product quality.
The FAA is equipped with a powerful 2 kW blower that generates a focused airflow through the slit nozzle.
This airflow is heated to a preset temperature by a 9 kW heating element, enabling it to safely and effectively remove residues at the die exit by precisely blowing them away.

The principle of the FEDDEM dual brush assembly for cleaning has now proven itself in installations throughout Europe. The two brushes are driven centrally via a distribution gearbox and can be inserted into the figure-8-bore of the twin-screw extruder at operating temperature after the screws have been removed. This considerably reduces cooling and heating times of the extruder and minimises the downtime of the line during product changes. The distribution gear and the diameter of the brushes are matched to the centre-line distance and diameter of the figure-8-bore of the target extruder. Our dual brushes are currently available for extruder sizes from 43 to 93 mm.

Our warehouses are well stocked with key spare parts for a fast and flexible response to short-term requests. We also manufacture customised parts for your individual applications.

• On-Site Service

• Remote-Service

• Remote-Service

• Wear Measurements

• Process Know-how and Consulting

• Technical centre

• Retrofitting & modernisation