RLS Artos Rotary Absolute Encoder with SAR057 Ring (45 mm bore)
Radial-reading absolute magnetic ring encoder (board-level or housed readhead) on a 57 mm ring with 45 mm bore; for large hollow joints where AksIM rings are too small.
Specifications
| Resolution | up to 1,474,560 counts/rev on SAR057 (datasheet gives counts, not bits) |
|---|---|
| Accuracy | ±70 mdeg (±0.07°) system accuracy on SAR057, excluding installation eccentricity |
| Max speed | up to 30,000 rpm (SAR057; depends on resolution) |
| Interface | BiSS-C; SSI (board-level PCB-A or housed readhead) |
| Form | off-axis ring kit: Artos readhead + SAR057 radial magnetic ring |
| Sensing | magnetic, radial reading (RLS states sensor technology in DBD01) |
| Supply | 4.75 V to 30 V |
| Bore / ring ID | 45 mm (SAR057 ID 45H6) |
| Outer diameter | 56.7 mm ring OD |
| Latency | <1 µs sensor and processing latency |
| Operating temp | -40 °C to +85 °C |
Who makes it
Need a different shaft, connector, firmware or enclosure, or a price at 1,000 units? Maglev takes the catalog part to the factory and comes back with a custom version and one fixed price.
Landed cost in the US
Total US duty on this part by where it is made (2026-10-29). Mexico shown before USMCA preference; qualifying goods enter duty free. Your factory choice, not the shipping port, sets the origin.
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Compliance
| HTS classification | 9031.80.80.85 typical, not a ruling |
|---|---|
| NDAA | unknown |
| Blue UAS | unknown |
| FCC | n/a |
Equivalents from other makers
Sources
- https://www.rls.si/eng/artos-rotary-absolute-magnetic-encoder-systemspecs, image
- https://cdn.rls.si/documents/datasheets/DBD01.pdfreadhead datasheet: latency, supply, interfaces
- https://cdn.rls.si/documents/datasheets/SARD01.pdfSAR ring datasheet: SAR057 resolution, accuracy, dimensions, speed
Record confidence: VERIFIED. VERIFIED means the maker's own documents; REPORTED means a credible third party; UNVERIFIED means a single weak source. Anything we could not confirm says unknown.