O-rings and elastomer seals from the specialist

As an independent manufacturer, we are one of Germany’s leading suppliers of precision seals. We advise, develop and manufacture for you – always with the aim of providing you with a satisfying solution to your requirements, as well as assisting you with the smooth running of your processes. In order to avoid production downtime caused by damage to seals or by leakages, we make our high degree of materials expertise available to you. Like this, it quickly pays off for you to rely on the specialists.

In the world’s largest O-ring warehouse, we have over 45,000 different items in stock for you, including not just standard sizes but also special size variants, made from a wide variety of materials. You can directly make your choice and place your order. Or ask the specialists in our application technology department for expert advice: Our high-tech products provide you with clear benefits.

COG. For 150 years the right solution.

Our starting point is always a wide range of elastomers with outstanding performance characteristics. Our objective is to provide solutions you can depend upon. This results in lower expenditure on maintenance and lower follow-up costs.

But the most important requirement is the close partnership with you: Are you searching for dependable quality at a fair price? Do you require a custom solution suitable for your sector, which will enable you to secure your market advantage? Let’s discuss your requirements!  

Dear customer and business partner,

Our office will be working with a skeleton staff between Christmas and the New Year.

On December the 27th  we will be available from 9 a. m. to 3 p. m (CET) and on December the 28th from 9 a. m. to 2 p. m.

Our office will be closed from December the 24th to the 26th, 2018 as well as on January 1st, 2019. You can reach our complete team again on January the 2nd.

We wish you a Merry Christmas and a happy New Year.


Trade shows 2018

COG has sucessfully finished its trade show season.

Upcoming dates and fairs will be annonced shortly.


We are looking forward to your visit in...

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