Ferrofluidic Seal

Ferrofluidic Seal

Ferrofluidic is the brand name of a magnetic liquid rotary sealing mechanism made by the Ferrotec Corporation. Magnetic liquid seals are used in rotating equipment to enable rotary motion while maintaining a hermetic seal by means of a physical barrier in the form of a ferrofluid. The ferrofluid is suspended in place by use of a permanent magnet.

Read more about Ferrofluidic Seal:  Benefits and Limitations

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Ferrofluidic Seal - Benefits and Limitations
... Magnetic liquid rotary seals operate with no maintenance and extremely low leakage in a very wide range of applications ... Ferrofluid-based seals used in industrial and scientific applications are most often packaged in mechanical seal assemblies called rotary feedthroughs, which also contain a central shaft, ball bearings and an outer ... functions maintaining the shaft's centering within the seal gap, and supporting external loads ...

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