In many industries, the safe and efficient transfer of hydraulic oil to rotating machine parts is critical for smooth, reliable operation. Our Christian Maier hydraulic rotary joints are designed precisely for this task, delivering durable, dependable performance across a wide range of applications. With innovative sealing and sensor technology and optimized construction, they help reduce maintenance and repair efforts, ensure consistent performance, and minimize production downtime.
Terminology: The primary term is hydraulic rotary joint.
It is also commonly referred to as a hydraulic rotary union in various industries.
A defective hydraulic rotary joint (or hydraulic rotary union) can damage machine components and lead to costly production stops. Choosing a high-quality, correctly dimensioned solution safeguards uptime, protects equipment, and improves total cost of ownership.
A rotary joint connects a stationary supply to a rotating component. A precision rotor, bearings and a sealing system allow hydraulic oil to flow in and out while the shaft is rotating, without twisting hoses or causing premature wear.
In short:
Oil enters through the housing, is sealed by the seal system, and is routed into the rotating side.
Seal materials with spring/pressure compensation maintain tightness across varying pressures and speeds.
Bearings and materials are matched to RPM, oil type and operating environment.
