MATERIALS

Nowadays, modern technology is hardly conceivable without seals. These
highly specialized and extremely precise seals are produced especially to meet
your individual requirements. Seals are needed everywhere and there is not an
engine, a hydraulic system or pipeline that can be made without them. They are
required to withstand both extremely low and high temperatures and neither
high pressure nor a vacuum should affect them.
It is important that aggressive chemicals such as acids and alkalines have no
effect on the seal's performance.
Some even have to withstand a longer period of radioactive exposure.
We stock around 100 different sealants from which we can manufacture your
seals and they differ in a number of ways. First of all there is the material itself:
rubber, HD, paper, plastics, graphite sheets, SBR, NBR, EPDM, CR, PVC, PE with
or without inlays, to name but a few.
Then there is a multitude of possibilities due to the variety of fibres available
and the differences in their structure and length, not to mention the formula
variations in elastomer binder. The variety becomes even greater when, in
addition, different material thicknesses are considered.
One seal has to be made extremely thin, another very much thicker, so our
sealing materials are available in fine gradations from 0.1 mm to 50 mm.
And that is only the start. The variety becomes unbelievably huge if we
consider that the seal for every piece of technology has to have a precisely
defined form.
Of course, there are standardized mass products. However, in machine and
plant construction customized seals are required that must be produced
according to the definitions of the designer or the plant manufacturer.
Everything must meet certain standards of accuracy and tolerances kept to a
minimum. Such seals are custom-made products which are manufactured in
the production halls of WST Winkel.
Many of our tasks are a process of research and development. Prototypes are
built, laboratory tests are carried out and applications are tested. These
processes often yield more solutions that are later adopted as standards.

Theodor Winkel GmbH -

Grovestr. 26 - DE-30853 Langenhagen
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© 2018 by Theodor Winkel GmbH

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