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Welcome to Y-Knot Industrial Support AB!

Y-Knot Industrial Support is founded by Björn Hedendahl and Ilona Hedendahl-Haas. Y-Knot is a company that’s fully equipped to handle all kind of industrial installations. With Björn Hedendahl’s 30 years of experience, we are specialized in heat treatment installations. Our customers can be found in (Aluminum) Industries all over the world!

Y-Knot Industrial Support offers you:

  • Project Management
  • Site Supervision
  • Maintenance and Service
  • Technical Consultation

Are you looking for a professional partner for the installation of your industrial equipment? Do you need an experience partner to take care of the organization of your project? Is your company looking for an Assembly Team that keeps the high standard you require?

You came to the right address by visiting Y-Knot’s website.

We invite you to explore our homepage, get an impression who we are, what we are doing and of course see what we have done, therefore we are very proud to show you a list of satisfied and respectable references!

Björn Hedendahl and his team are looking forward to meet you!!



  • Y-Knot @ HAI Aluminium, Ranshofen, Austria for Extrutec GmbH, installing new heating equipment, hot shear, a vertical log magazine and a pre-heating log magazine.


  • Y-Knot @ Interfer Aluminium GmbH, Werl for Extrutec GmbH, installing a new billet furnace and modification of existing hot shear.


  • Y-Knot @ Thöni Industriebetriebe, repair and modify die-furnaces. Y-Knot @ ProfilGruppen AB Åseda, Sweden, repair and modify ageing furnaces and handling equipment.


  • Y-Knot @ APT Hiller Aluminium, Monheim am Rhein for Extrutec GmbH, installing 14 die-furnaces with handling equipment. Y-Knot @ Thöni Industriebetriebe GmbH, renovation of ageing furnaces.


  • Thöni Industriegebiete GmbH, Telfs, Austria contracts Y-Knot AB for (yearly) service, maintenance and development of their heat-treatment equipment.
  • Photo 2 Bjorn working