Rotary unions and hybrid joints
Moog Wind power slip rings and rotary unions
Combined slip ring and hydraulic rotary union assemblies for turbine pitch systems, many based on Rotoflux ESR rings.
Key specifications
| Circuits (max) | 48 |
|---|---|
| Current per circuit (max) | 130 A |
| Voltage (max) | 575 V |
| Data / bus | CAN Bus, Ethernet, PROFIBUS |
Summarised in our own words from Moog Inc.'s published data; series maxima, individual models vary. Last checked 2026-10-29. Source 1
Notes on this data
Examples for 2.05-6.0 MW turbines; hydraulic channels up to 315 bar; optical channel option; UL/CSA possible.
Specify Motion is not affiliated with Moog Inc.. Moog and Wind power slip rings and rotary unions are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
Typical applications
Alternatives that meet or exceed these figures
Engineers often come to us with a Moog part number and leave with an alternative that is easier to source, quicker to deliver or a better fit for the machine. These series from our supply network is the closest match on published figures.
Combined units passing hundreds of electrical circuits plus up to 16 gas or liquid channels, with pressures of 10 MPa or more.
| Published maximum | Wind power slip rings and rotary unions | Pneumatic/Hydraulic Integrated Electri… |
|---|---|---|
| Circuits | 48 | 48 meets or exceeds |
| Current per circuit | 130 A | 30 A |
| Speed | — | 300 rpm |
| Voltage | 575 V | — |
| Bore | — | 85 mm |
Figures are the highest published for each series and are not always measured the same way. A higher figure is not automatically a better choice: mounting, duty cycle, feedback, connectors and approvals matter too. An engineer will check the fit against your application before recommending anything.
Other rotary unions and hybrid joints series
Spec builder
Specify what you need instead of Wind power slip rings and rotary unions
Select every part you need, answer the questions an applications engineer would ask, and see your summary before we ask for any details.
- 1Products
- 2Performance
- 3Environment
- 4Volumes
- 5Your spec
Engineer support
Let our experienced engineers do the hard work for you
Tell us how you use the Moog Wind power slip rings and rotary unions: the load, speed, duty and environment. Our engineers will confirm whether it is still the right part, find it for you, or propose an alternative that fits better.
- Reviewed by an engineer, not an autoresponder
- Like-for-like and better-fit alternatives
- Standard, modified and custom options
Prefer to configure it? Use the spec builder.