This website uses cookies to analyze the traffic. Information on the use of our website is therefore transferred to Google.
More information

Follow us on Linked

Shock Transmission Units

For Stonecutters Bridge in Hong Kong, the second largest cable-stayed bridge in the world, with a span of 1,018 m, O.L. Seals has designed and manufactured MupuSeals™ for the Shock Transmission Units.

The Shock Transmission Units carry the total load of the deck and keep the lanes in level and act as shock absorbents during earth quake and extreme windstorms.

Key specifications:

  • Maintenance free operation for 20 years
  • Accidental load (earth quake, storms): 60 MPa

Sterling engine

O.L. Seals has provided technical assistance and sealing solutions to mature the technology for commercialization of a Stirling engine.

Best performing standard piston seals tested was the MupuSeal™ designed and manufactured by O.L. Seals.

Key specification:

  • Working pressure from 0 to 28 MPa
  • Stick-slip free operation required
  • Test speed: 2.5 m/s
  • Working Temperatures up to 90 °C
  • Lifespan: 4000 h


Overview of all standard sealing solutions including application parameters, detailed technical information and link to product catalog.

To the range of standard Products


Overview of selected in-house developed and manufactured compounds for standard and none standard applications.

To the range of standard Compounds

Close dialogue

The basis for developing and delivering of the right sealing solution is a thoroughly knowledge of the application and the environment it works in.

Therefore O.L. Seals seeks an early and open dialogue making sure that all relevant details are discussed prior to our recommendations.

We invite you for long lasting partnership build on close and early dialogue.

Contact O.L. Seals