German Engineering certainly enjoys a superb reputation
worldwide, mainly for its acknowleged reliability. In all
modesty, this is very likely due to our precision O-Rings and elastomer seals, too.
As an independent manufacturer we belong to one of the leading supplier of precision O-Rings. COG delivers from Europe’s largest O-Ring stock (more than 45,000 items from stock) most various materials, including FFKM/FFPM. Besides, our developers are always happy to meet any specifi c requirements of the chemical industry. For more than 100 years, COG has taken care that “German Engineering” is a story with a happy ending.

Our clients define the aims of everything we do. New ideas and products are developed quickly and in a market- and goal-oriented manner for the benefit to our clients. Let‘s discuss your aims.

The renowned trade magazine "Process worldwide" has published a professional article about COG and our products. You will find this article here:

Elastomer Sealing Systems: Best Practices: Elastomer Sealing Systems for Ultra-Pure Water, CIP and SIP

Dear editorial staff of Process worldwide,

thank you very much for this publication! The complete COG team is proud of it!

COG has created a corporate video. Please have a look and enjoy the film: COG Impressions