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From idea to transfer

Center for Textile Lightweight Engineering

Technical Equipment

On an area of over 1,500 m², the Center for Textile Lightweight Engineering combines classic textile technology and innovative systems for composite production. The technical equipment on a semi-industrial scale enables both small pre-trials and the production of small series. The installed equipment in the research and test field are linked with a process control system, so that comprehensive data acquisition and evaluation is possible. The combination with the recorded consumption data, such as electricity, gas and compressed air consumption, as well as the environmental conditions, enables ecological and economic assessments of the done developments.

 

Any questions?

Your contact

Dipl.-Ing. (BA)
Marcel Hofmann
Manager Center for Textile Lightweight Engineering

Phone: +49 371 5274-205

 

 

  • A cutting and tearing machine to convert different kinds of textile waste material (consisting of high performance fibers) into processable staple fibers
  • Fibre opening and blending, fibre sizing
  • Web forming by use of monocharges or blends with synthetic and/or natural fibers based on the carding process or airlay process
  • Inline mechanical bonding methods: needle-punching and/or stitch-bonding
  • Inline quality monitoring systems
  • Determination of fibre orientation by using NOS 200
  • Determination of basis weight and thickness by using Qualiscan QMS-12
Processable fiber length30 - 120 mm
Working width500 - 1.000 mm
Working speedmax. 5 m/min
Possible area weight40 bis 1.500 g/m²
Veprocessable materialscarbon fibers, glass-, basalt- or natural fibers and blends with PP, PA, PES, PEI, PPS, PEEK
  • Consisting of staple fibers (100 % carbon fibers or fiber blends)
  • Inline bonding method to obtain a strand-like product
  • Production of cylindrical tubes resp. flanged bobbins
Processable fiber length
Working speed
Diameter
60 - 100 mm
4 - 10 m/min
8/12/16 mm (Hotmelt)
  • rCF-suitable Cetex Lab-Spinning-Machine (LSE-C)
Processable material
Spinning process
Number of spinning stations
Slivers or roves
Ringspinning process (Siro/Core)
6
  • carding, stretching and tape production by using fiber blends (rCF, natural fibers, thermo plastic fibers)
Processable fiber length
Tape area weight
Tape width
Working speed
60 - 100 mm
100 - 600 g/m²
¼ - 12 inches
4 - 20 m/min
  • High precision circular saw
  • Band saw
  • NC-milling machine
  • Different grinding machines
Cut surface
Cutting heads
1.600 x 1.350 mm
draw blade, active or passive roll knife, oscillating knives
  • Vacuum injection system
  • RTM technology (cold or warm curing)
  • Vacuum infusion incl. VAP®-method

 

  • Up to 300 °C
Working width
Max. press capacity
Temperature range
610 mm
2.000 kN
up to 450°C
6 unwinder
Position and pressure controlled or combined managment system

 

Max. press capacity
Press area
Max. temperature
Heating rate
Cooling rate
2.000 kN
900 x 600 mm
up to 420 °C
up to 20 K/min
up to 20 K/min
Press area
Max. temperature
320 x 320 mm
400 °C

 

 

 

Fields of application

 

 

Research News

MC4 Project

"Multi-level Circular Process Chain for Carbon and Glass Fibre Composites" (MC4) is a European partnership having started in April 2022. It is a project consortium of 15 partners, including STFI, investigating circular approaches for the reuse of carbon and glass fibre composites. It develops process technologies and quality assurance methods that enable the economic recycling of carbon and glass fibre components. MC4 focuses on various reuse and recycling processes along the life cycle of composite components.

 

Contact

Dipl.-Ing. Romy Naumann
+49 371 5274-186
Email

Dipl.-Ing. (BA) Marcel Hofmann
+49 371 5274-205
Email

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Art and Technology

GROUNDED at the Berlin art gallery Dittrich & Schlechtriem (Picture: © Daniel Hölzl)
GROUNDED at the Berlin art gallery Dittrich & Schlechtriem (Picture: © Daniel Hölzl)

GROUNDED – Carbon nonwovens in a different way

"Daniel Hölzl creates in GROUNDED a special link between the two worlds of art and technology by consistently implementing the idea of sustainability. With great attention to detail, he takes visitors up into the air before grounding them again with the harsh reality of recycling."

Marcel Hofmann, Head of Textile Lightweight Engineering at STFI

Apart from wax, carbon nonwovens are the main components the exhibited works are made of. The recycled materials form the basis of the raw material being reused demonstrating how circular economy can function.

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