Slip rings
SCHLEIFRING Wind turbine pitch slip ring
Modular slip ring for blade-pitch systems on onshore and offshore wind turbines, carrying power plus fieldbus or contactless Ethernet.
Key specifications
| Current per circuit (max) | 115 A |
|---|---|
| Voltage (max) | 480 V |
| Speed (max) | 30 rpm |
| Ingress protection | IP65 |
| Temperature | -40–55 °C |
| Data / bus | CAN bus, PROFIBUS, Ethernet, GigaCAP contactless 100 Mbit/s |
| Rated life (revolutions) | 50,000,000 |
Summarised in our own words from Schleifring GmbH's published data; series maxima, individual models vary. Last checked 2026-10-29. Source 1
Notes on this data
Housing 155 x 155 mm, length 262/316/368 mm (S/M/L). Silver multi-fibre brushes. 480 V / 115 A as stated (whether per circuit is not explicit). Circuit count not published.
Specify Motion is not affiliated with Schleifring GmbH. SCHLEIFRING and Wind turbine pitch slip ring 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 SCHLEIFRING part number and leave with an alternative that is easier to source, quicker to deliver or a better fit for the machine. These 3 series from our supply network are the closest match on published figures.
High-circuit-count slip rings that carry hundreds of mixed power, digital, analogue, fibre and RF channels in one unit.
| Published maximum | Wind turbine pitch slip ring | Multi-channel Slip Ring |
|---|---|---|
| Circuits | — | 500 |
| Current per circuit | 115 A | 30 A |
| Speed | 30 rpm | 480 rpm meets or exceeds |
| Voltage | 480 V | 700 V meets or exceeds |
| Bore | — | 40 mm |
Slip rings using heat-resistant materials for extreme temperatures from -55°C to +250°C, such as hot rollers and heating plant.
| Published maximum | Wind turbine pitch slip ring | High & Low Temperature Slip Ring |
|---|---|---|
| Circuits | — | 48 |
| Current per circuit | 115 A | 50 A |
| Speed | 30 rpm | — |
| Voltage | 480 V | 500 V meets or exceeds |
| Bore | — | 88 mm |
A small analogue power-and-signal slip ring with FASTON quick-connect terminals for fast wiring in dusty, high-cycle machinery. Optional IP65 sealing.
View HR Series Faston Type Slip Ring →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 slip rings series
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Tell us how you use the SCHLEIFRING Wind turbine pitch slip ring: 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.
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