our Company

Expertise through tradition

DIUNIS Wilhelm Gärtner GmbH was founded as a technical wholesale in 1922. With its current emphasis, DIUNIS was created as a dedicated management buy-out by the family Bauerfeld in 1977.

Today´s general manager Guido Bauerfeld took over the company in 1986 and has continually expanded it since then. Thanks to a broad field of DIUNIS gaskets customers, the company has been able to further develop its domain of knowledge and, thus today, assist many customers as a solution-orientated partner.
In April 2024, DIUNIS was integrated into the KLINGER Group and is now part of a powerful international group of companies.

A lean company with a high amount of productivity – a real expert for gaskets in large quantities.


Motivated team

Your partner for union end flat seat gaskets

  • own tool manufacture
  • in-house production with CNC-controlled machine tools
  • pronounced material expertise
  • many years of experience
  • high quality and precision requirements
  • tried and tested quality assurance
  • resilient relations to materials suppliers and our own well-sorted storage
  • close cooperation between process planning, tool manufacture and production
  • highly service-orientated
  • adherence to schedules

accurate to measurement, flexible and fast production

Cooperation is the quintessential foundation of the DIUNIS business philosophy. Long-term and cooperative relations to our employees, suppliers and customers are the foundation for our successful work.