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Hydraulic Electrical Slip Ring Rotary Joints

A Hydraulic Electrical Slip Ring Rotary Joint (also called a hybrid rotary union or electro-hydraulic swivel) is a combined device that transmits both hydraulic fluid/pneumatic media and electrical signals/power between stationary and rotating parts of machinery. It enables continuous rotation while preventing hose/twisting and wire tangling.
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Parameters of Hydraulic Electrical Slip Ring Rotary Joint

ParameterValue
Working LifeOver 10 Million Revs
Rated Rotating Speed500 RPM
Working Temperature-30°C ~ 80°C
Operating Humidity0 ~ 85% RH
Contact MaterialPrecious Metal
Housing MaterialAluminium Alloy
Protection GradeIP51

Key Features of Hydraulic Electrical Slip Ring Rotary Joints:

  • Hydraulic Passages: Transfers pressurized fluid (oil, water, air) through rotating seals.

  • Electrical Slip Rings: Conducts power and signals (e.g., Ethernet, CAN bus, sensors) via brushes and rings.

  • Modular Design: Can integrate multiple hydraulic lines and electrical circuits in one unit.

  • High-Pressure & High-Speed: Rated for hydraulic pressures (up to 5,000+ PSI) and varying RPMs.

  • Robust Sealing: Prevents fluid leaks and protects electrical contacts from contamination.


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