In aerospace and astronautics, resilience to extreme loads and maximal reliability are an absolute requirement. Pertinent examples include our flexible elements in the Airbus A380, Eurocopter EC 135 helicopter, in Rolls-Royce motors or the Ariane 5 rocket.

The  foundation is laid by certifications in accordance with  ISO 9001 and TS 16949. These form the basis of the process-oriented quality assurance that has been established throughout Witzenmann group. In addition, an annual review will be performed in accordance with EN9100 by an IAQG-accredited certification company, specifically adapted to the special requirements of the aerospace and astronautics industry. Accordingly, our range of flexible metal tubes and expansion joints meets the strict standards in the aerospace industry.


  • Kerosene lines for fin tank/auxiliary tanks
  • Flexible metal hoses in accordance with AS1424
  • Gimbal joints
  • Ball joints
  • Antenna shielding lines
  • Tank ducts
  • Vibration decoupling units
  • Accumulators
  • Valve bellows
  • Expansion joints for tank lines  and feed lines







  • PDF EN 9100:2016_de


  • PDF Flexible elements for aerospace


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