New Seals Rise to the Challenge of Churning Heavy Dough

           New Seals Rise to the Challenge of Churning Heavy Dough

Freudenberg Sealing Technologies introduces new PTFE solution for heavy-duty

PR Newswire

WEINHEIM, Germany and MUNICH, July 10, 2013

WEINHEIM, Germany and MUNICH, July 10, 2013 /PRNewswire/ --Commercial mixers
can make easy work of producing huge quantities of bread dough and batters.
But the mechanical forces created by the those mixers as they churn through
heavy, sticky, voluminous ingredients can cause agitator and motor stress,
seal failures and even shaft leakages – unacceptable risks in the highly
regulated food and beverage industry.

Freudenberg Sealing Technologies Process Seals (FST) today introduced a new
family of Polytetrafluoroethylene (PTFE) radial shaft seals designed to
withstand high temperatures, high speeds and increased shaft runout. The
seals, part of the Simmerring® Radiamatic HTS II EWS family of products, offer
industrial users an alternative to mechanical face seals by combining a PTFE
shaft sealing ring and flexible bellows element in one application.

FST will display its Radiamatic HTS II EWS products – and others – at drinktec
2013, a food and beverage trade fair in Munich, Germany Sept. 16-20.

PTFE shaft sealing rings have established themselves as reliable sealing
elements over decades of use in the process and food industries. Their nearly
ubiquitous chemical resistance to a multitude of industrial fluids and
cleaning agents and their ability to withstand high temperatures makes them an
irreplaceable product solution.

When strong mechanical forces produce increased shaft runout, however,
conventional PTFE shaft seals can demonstrate poor recovery behavior. The
resulting lift produced in the lip seal of a conventional PTFE shaft seal ring
can cause leakage, especially at low rotation speeds. FST's unique Radiamatic
HTS II EWS products are made to withstand increased shaft runout by combining
PTFE shaft sealing rings with PTFE bellows to prevent runout separation and

The Simmerring Radiamatic HTS II EWS – for increased shaft runout – was
developed to offset the poor resilience of PTFE shaft sealing rings. The EWS
combines lip seal and ferrule technology of the Radiamatic HTS II with bellow
elements and a slide bearing. The arrayed folds provide the shaft sealing ring
with greater flexibility to absorb the kinetic energy transferred by the slide
surface. The novel design thus offers an efficient solution for the
application in mixing systems.

Additionally, Simmerring Radiamatic HTS II EWS products withstand high
temperatures and speeds – "HTS" – with six different configurations that offer
reliable seal applications in a variety of industrial applications. Based on a
modular principle, both the type and alignment of the lip seals as well as the
PTFE material can be adapted to the individual use. This flexibility offers
customers tremendous advantages when fabricating their own components and
products. And the Simmerring Radiamatic HTS II products offer customers access
to fast, off-the-shelf solutions to special, high performance seal

The Simmerring Radiamatic HTS II products have unrivaled low friction
coefficients. The lip seal is designed in such a way that a precisely defined
contact surface remains virtually constant under all operating conditions. A
design with almost no dead spots makes it the first choice for manufacturers
of mixers and kneaders in the food and beverage and pharmaceutical industries.
The HTS II also features a homogeneous PTFE surface which cannot be harmed by
aggressive fluids and cleaning agents.

drinktec 2013, which takes place at the Messe Munchen exhibition center in
Munich, is expected to attract over 1,400 exhibitors from more than 70
countries. FST products, including the Simmerring Radiamatic HTS II EWS
products will be on display at the company's booth in Hall A4, booth 441. For
more information about the Simmerring Radiamatic HTS II, please click here.

About Freudenberg Sealing Technologies

The technology specialist Freudenberg Sealing Technologies is a supplier,
development and service partner for customers from a variety of market
segments, such as the automotive industry, civil aviation, mechanical
engineering and shipbuilding, food processing and pharmaceuticals, or the
agricultural and construction machinery industry. On the basis of the
Simmerring® developed by Freudenberg in 1929, Freudenberg Sealing Technologies
now has a broad and continuously customer-oriented product portfolio of seals.
Based on detailed process knowledge, innovative development methods and
selected materials, the range includes both customized individual solutions as
well as complete seal packages.

Together with its partners NOK Corporation, Japan, Sigma Freudenberg NOK,
India, and NOK-Freudenberg Group China, Freudenberg Sealing Technologies forms
a global network which aims to supply its customers all over the world with
products of the same high quality.

In fiscal 2012, the largest business group of Freudenberg generated sales of
more than 1.68 billion euros and had a workforce of about 12,000 employees.
The company is part of the Freudenberg Group whose business areas Nonwovens,
Seals and Vibration Control Technology, Household Products and Specialties and
Others generated sales of more than 6.3 billion euros in 2012 with a workforce
of 37,453 in 57 countries.

SOURCE Freudenberg Sealing Technologies Process Seals

Contact: Freudenberg Sealing Technologies GmbH & Co. KG, Michael Scheuer, Head
of Corporate Communications, D-69465 Weinheim, Phone +49 (0) 6201 / 80 3631,
Fax +49 (0) 6201 / 88 3631, Email:; Dr. Stephan Wolf,
Head of Media Relations, Phone + 49 (0) 6201 / 80 2366, Fax + 49 (0) 6201 / 88
7467, Email:, Please send a file copy to the above
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