Air ducts for HVAC

in vehicles

Air duct components for the automotive and utility vehicle industry

We design, develop, and check plastic components for HVAC applications

Our components for heating, ventilation, and air conditioning applications symbolize the substitution of metal components by low-cost and light-weight plastic components.

Wirthwein is your innovative partner when it comes to design and production of air duct components. Tailored to customer specifications regarding weight, acoustics, stability, and assembly we develop manufacturing concepts together and effectively take them to series production.

Our Expertise

  • Component design and dimensioning considering environmental data
  • Strength, warpage, and filling simulation
  • Complete component qualification
  • Multi-component injection molding
  • Insert molding
  • Automated module and system assembly, incl. EOL tests
  • Specific mold design

„Together with you our well-experienced team of experts develops a sustainable and state-of-the-art design and functional concept. 
Thanks to our know-how in plastics technology we save costs both in the component design as well as the production process."


Thomas Volkmar

Global Key Account Manager

The basis for high molded part quality.

Constructive component development

High-quality for series production.

Wirthwein tool making