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AM64 Modular Hollow-Shaft Absolute Encoder

Compact Absolute Encoder Ideal for AGV, Medical, and Robotic Applications

The AM64 is a large bore hollow-shaft absolute encoder ideal for DC motor application in autonomously guided vehicles (AGV), medical devices and robotic applications. Its slim form factor and bore sizes ranging from 15mm to 25mm allow integration into compact device designs.

  • Modular kit bearingless absolute encoder
  • Hollow-shaft encoder bore size up to 25mm
  • Ideal for low-voltage DC motors in AGV, robotic, or medical applications
  • BiSS-C, SSI, or SPI communication interface options 
  • Single-turn resolution up to 18 bit. A battery-based multi-turn option is available.


AM64 Absolute Hollow Shaft Encoder


Standard Operating Characteristics

Single-turn Resolution: 17, 18 Bits
Multi-turn Resolution: 16 Bit MT (available with 17 and 18 Bit ST resolution)

 Mechanical and Environmental

Mounting Style: Hollow-shaft
Bore Sizes: 15mm, 17mm, 20mm, 25mm options
Outer Diameter: 64mm
Operating Temperature: -40°C to +85°C

Encoder Protocol

Communication Interface: BiSS-C, SSI, SPI
Output Voltage: RS422 Compatible


The AM64 Hollow-Shaft Absolute Encoder is ideal for situations requiring a compact feedback solution in applications such as:

  • Medical Equipment Automation
  • Robotic Arms 
  • Autonomous Guided Vehicles