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Catalog / Actuators & Transmission / Magnetic Encoders
RLS AksIM-2 Off-Axis Absolute Rotary Encoder
Photo: mabrobotics.pl
Datasheet CAD / STEP Maker's page This part as JSONThis part as Markdown

RLS AksIM-2 Off-Axis Absolute Rotary Encoder

RLS · MPN AksIM-2 (MBxxx readhead + MRAxxx ring; configured) · Maglev ID ac-rls-aksim-2
SI Maker in Slovenia, factory not confirmed unknown VERIFIED

Thin through-hole absolute magnetic ring encoder (ID 8-68 mm) widely used as the output-side encoder in robot joints and exoskeletons.

Specifications

Resolution17-bit standard; 18, 19 or 20 bits per rev as high-resolution options depending on ring size (20-bit only on MRA053/064/080; high-res options may contain noise)
AccuracySystem accuracy ±0.020° (MRA022) to ±0.004° (MRA064/080) with two readheads or after self-calibration; typical installed calibrated ±0.030° to ±0.009°; uncalibrated ±0.100° to ±0.029°
Max speed10,000 rpm (sizes 022/029/039); 9,500 (049); 7,500 (053); 6,000 (064); 4,700 (080)
InterfaceBiSS C; SSI; asynchronous serial (UART); SPI; PWM (RS422 line drivers on serial versions)
Formoff-axis ring kit (MB readhead + MRA axial magnetic ring; 360° or arc readheads)
Sensingunknown
Supply4.5-5.5 V at connector
Borering ID 8 mm (MRA022) to 68 mm (MRA080DF); e.g. 10, 12.7, 20, 25, 30, 34, 40, 51, 55, 64 mm
Outer diameterring OD 21.5 mm (MRA022) to 95 mm (MRA080DF)
Multi-turnyes, 16-bit multiturn counter option (stored; max ±90° rotation while unpowered unless braked)
Operating temp-40 to 105 °C (-40 to 85 °C MB022)

Who makes it

MakerRLS merilna tehnika d.o.o.
Based inSlovenia
RoleBrand owner

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

CN 37.5%
TW 10%
VN 12.5%
IN 10%
JP 12.5%
KR 12.5%
DE 10%
MX 10%
US 0%

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 classification9031.80.80.85 typical, not a ruling
NDAAunknown
Blue UASunknown
FCCn/a

How we source tariff and compliance data

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Works with

MyActuator RMD-X8-P20-120 Planetary ActuatorMyActuator RMD-X8-P20-120 Planetary ActuatorMyActuator · CN · $999CubeMars AK80-64 KV80 Robotic ActuatorCubeMars AK80-64 KV80 Robotic ActuatorCubeMars · CN · $889.90Harmonic Drive CSF-17-100-2UH Strain-Wave Gear UnitHarmonic Drive CSF-17-100-2UH Strain-Wave Gear UnitHarmonic Drive · JP · QuoteLeaderdrive LCS-17-100 Cup-Type Strain-Wave ReducerLeaderdrive LCS-17-100 Cup-Type Strain-Wave ReducerLeaderdrive · CN · QuoteLeaderdrive LCSG-17-100 Cup-Type Strain-Wave ReducerLeaderdrive LCSG-17-100 Cup-Type Strain-Wave ReducerLeaderdrive · CN · Quote

Sources

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.