AksIM-4™ is a non-contact, high performance off-axis absolute rotary encoder designed for integration into applications with limited space and systems with larger diameters. A hollow ring, absolute functionality, and high accuracy make this encoder suitable for many applications.

The AksIM-4™ encoder system consists of an axially magnetised ring and a readhead. The encoders are equipped with BiSS communication interface and offer binary resolutions up to 21 bits per revolution and high accuracy.


  • True absolute system
  • Custom magnetic sensor ASIC
  • Self-calibration option
  • Resolution up to 21 bits


  • High accuracy
  • High repeatability
  • Low profile, non-contact
  • High speed operation
  • Integrated status LED

Configure and Buy Configure Data sheet

Product data


Encoder type
True absolute encoder
Reading type
Axial, Rotary
20 bit and 21 bit
Less than unit of resolution


Supply voltage
4.5 V to 5.5 V (at the connector)
Set-up time
100 ms (first data ready after supply voltage is in range), worst case: 200 ms


Available ring sizes (outer diameter)
115 mm, 150 mm


Up to 70 % non-condensing
Operating and storage temperature
-40 °C to +105 °C
More info in Data sheet


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