Mixers and Stirrers

Sealing Solutions for Mixers and Stirrers

Mixers and stirrers require dynamic sealing solutions that are suited for food contact and numerous process media like polar, fatty and other nonpolar media. They also need to withstand cleaning agents and CIP/SIP processes at high temperatures. Freudenberg Sealing Technologies provides sealing solutions such as rotary shaft seals and guide bands for the drive shafts of mixers and stirrers.

The seals are made of premium PTFE compounds, which are considered to be especially pure and highly media resistant. In addition, they provide a uniquely long service life due to their optimized friction behavior.

For especially demanding applications where strong forces are at work and shaft runouts are an issue, we have developed the Radiamatic® HTS II EWS, which consists of a rotary shaft seal and a bellow element. This design is able to seal the shaft securely, while shaft runouts are prevented by the force absorption of the bellow element.

Another special solution for beverage applications is the new “Gerromatic” radial shaft seal. It features a wave-like sealing lip that allows for sealing up to pressures as high as 8 bar. In addition, the service life of the seal is increased through reduced friction, significantly reducing leakage. This makes this seal a great choice when it comes to sealing liquids.

FST Mixer


We show you our innovative sealing solutions for mixers in the food and beverage industry.

Try 3D Animation out now! 70-external-link
CR Guide


Still lost in spreadsheets?
Just a few clicks and you know which material is resistant to which process media.

Try it out now!

Related Documents

Big city with skyscrapers

Join Us!

Experience Freudenberg Sealing Technologies, its products and service offerings in text and videos, network with colleagues and stakeholders, and make valuable business contacts.

Connect on LinkedIn! 70-external-link

Please enter your email address and password.

Email address*


Password forgotten? Click here to reset.

* mandatory fields

You've logged in successfully.

Register and get instant access to exclusive content.

Please fill in all fields

First Name*

Last Name*

Email address*

Company / Organization*


Please repeat your password*

* mandatory fields

Thank you. Your subscription was successful.

We have sent you an e-mail. Please click on the included activation link to complete the registration.

Click here to continue to login.

Have you forgotten your password?

Please enter your email address to reset it.

Email address*

* mandatory fields

Your password has been successfully reset.

Click here to continue to login.