Dear Customers and Business Partners,

Thank you for your interest in our products and services. Effective October 28, 2025, the DMH Group and PU1TEC were acquired by the Freudenberg Group. The operational business of the DMH Group and PU1TEC will continue as usual. Detailed information about Freudenberg Sealing Technologies and the Freudenberg Group can be found at www.fst.com.

As part of the integration, we will also update the design of our website. You will continue to find an overview of our products and services.

If you have any further questions, please contact your representative or send us a message via our contact page.

DMH Dichtungen

SEALING TECHNOLOGY OF THE FUTURE – TODAY

Freudenberg Sealing Technologies is more than just a seal manufacturer. We also supply the technology for manufacturing seals – in the form of machines, sealing software, and tool technology from the DMH brand. This makes it possible to produce almost any seal within a very short time.

DMH Dichtungsring

Turned Seals

Freudenberg Sealing Technologies is the technology specialist for turned seals. Thanks to decades of experience and close cooperation with our partners, we have continuously developed and perfected this process, especially in conjunction with our own proprietary materials. Turned seals are playing an increasingly important role, particularly in repair and maintenance. Time-saving machining reduces downtime and lowers maintenance costs.

To Turned Seals
Dichtungsschweißen

Large Seals

Seals with a diameter of 1,500 millimeters or more are considered large seals. Freudenberg Sealing Technologies is able to offer endless seals with a diameter of up to 2,500 millimeters. In addition, we are continuously working to expand dimensions and possibilities through the ongoing development of technology and processes.

To Large Seals

Overview of all Seals

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