Standard, Modified, Custom & Integration Solutions

AV25 Magnetic Encoder

AV25 incremental quadrature rotary encoders fit a vast array of applications, from coupled AC and DC motor shafts, servos, conveyors, and most any machine.The solid aluminum housing, and stainless steel shaft offer increased durability in tough environments.  Also available: AV20 encoders for 2.0" flanges and AV45 for 85mm flanges.

Avtron rotary encoders have superior shaft seals and bearings that stay sealed to keep contaminants out, through temperature cycling and liquid sprays. Our encoder seals are protected by mechanical barriers to prevent flexing or failure. Avtron’s superior bearings permit much larger side and axial loads for pulley and belt applications, and feature synthetic lubricants for even longer life in all applications. 

Many competitive optical encoder designs risk sensor damage from any vibration or shock: sensors ride less than four thousandths of an inch from the thin, often flexible, optical disk spinning at full motor speeds. Some designs even use thin glass disks in “industrial” products! Avtron uses only unbreakable disks and a sensor to disk gap over 8X larger than the competition. 

Our optical AV25 encoders use superior sensor, disk, bearing, and seal technology to give top performance in industrial conditions. Select an Avtron AV25 today!

AV25 Magnetic Encoder

Technical specifications

  • Operating Power

    5 - 28 VDC

  • Current

    50mA, no load

  • Output Format

    (A,A–, B,B–, Z,Z– available)

  • Frequency Range

    0 to 125 KHz

  • Speed

    6000 RPM Max.

  • Environmental


  • Shaft Sizes Include 1/4", 3/8", and 10mm
  • Simple Installation
  • Unbreakable Optical Disk
  • Up to 5000 PPR
  • Wide-Gap Technology: Up to 8X larger gap between sensor and rotor
  • Directly Replaces H25, HA525, HA625, HC525, HC625, HR525, HR625, H42 and Many Other Standard 2.5" Encoders
  • Industry Standard Face or Flange Mounting
  • IP65/Nema 4 Rating: Dust and Liquid Tight
  • Superior Bearings and Seals
  • -40°C to +100°C Operation
  • 2 Year No-Hassle Warranty

Latest Application Notes