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Freudenberg Dichtungs- und Schwingungstechnik GmbH

Without seals, nothing works

When Professor Walther Simmer developed the Simmerring® in 1929, he surely never imagined that his sealing ring would be used in virtually every car and machine on the market today. This 1940 patented invention is literally the heart of Freudenberg Dichtungs- und Schwingungstechnik GmbH's comprehensive selection of sealing products.

The company was originally founded as a tannery, but has become increasingly diversified and internationalized over the past 150 years. Today, sealing and vibration technology is the most significant line of business, in which some 9,000 persons are employed worldwide. Freudenberg has a total of around 30,000 employees all over the world. More than 80,000 different types of seals are manufactured by Freudenberg for use in vehicles, systems and machinery in various branches of industry. Approximately 37% of the volume generated by the company is realized in the automotive industry, where it produces and supplies gaskets and seals for all motor types: exhaust manifold gaskets and cylinder head gaskets are just two examples. Freudenberg gaskets and seals can also be found in wind power stations, dentist drills, agricultural machinery and even dishwashers. The company enjoys a long tradition, yet is innovative and flexible in providing individually tailored or complete solutions to its customers' needs; and this at the highest levels of quality. „Components related to sealing and vibration technology must function 100% or everything will come to a grinding halt“, says Guido Will, Director of Quality Management. „For this reason, we are never satisfied with compromise, but always demand the best. Quality is the name of the game for us.“ In order to guarantee this quality, the company relies on ProcessMonitoring systems from BRANKAMP. „We manufacture metal carrier components for seals and molded parts using twelve machines - transfer presses and strip stampers - all of which are equipped with BRANKAMP. When ordering new machines, we simply order the ProcessMonitoring system at the same time“, according to Will. For the past year, Freudenberg has put its confidence in the PK 4U and the PK 5000 - with success. „In the past, neither feed errors to the circular dies nor the process changes at the individual stations were detected, that led to component stamping faults, deformations and indentations.“


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