picture Hydraulic Sealing

Research Project: Biogenic Hydraulic Seals

Institute of Machine Components (IMA)

Time-Accelerated Testing of Hydraulic Rod Seals Made from Regenerative Thermoplastic Polyurethane
[Photo: Sumbat Bekgulyan]

Hydraulic rod seals require good chemical resistance to the hydraulic fluid as well as high resistance to abrasive wear. Commonly, hydraulic rod seals are made of thermo-plastic polyurethane (TPU) based on fossil raw materials. The aim of the research project is to develop sustainable high performance TPU by replacing conventional raw materials with regenerative biogenic structural components.

Therefore, advanced tribological test methods are developed for hydraulic rod seals manufactured from high-performance TPU with regenerative raw materials. In particular, the test rigs are intended to enable time-accelerated testing of extrusion behaviour and wear behaviour with varying hydraulic fluids in order to evaluate the performance of new TPU prototypes.

detailed project description (.pdf)

logo for BMWi and ZIM

The ZIM project ZF4728002BA9 is carried out in cooperation with the company Fietz Automotive GmbH, Burscheid, and is supported by the Federal Ministry for Economic Affairs and Energy (BMWi) on the basis of a decision by the German Bundestag.



    This image shows Simon Feldmeth

    Simon Feldmeth

    Dipl.-Ing. Pat.-Ing.

    Team Manager Simulation

    This image shows Lothar Hörl

    Lothar Hörl


    Vice Head of Sealing Technology

    To the top of the page