Hengstler Absolute Rotary Encoder ACURO AX65

Absolute Rotary Encoder ACURO AX65
Absolute Rotary Encoder ACURO AX65

There are some encoder applications that are just demanding. Incredibly challenging. Among these are applications where the encoder has to be explosion-proof due to the dangerous atmosphere in which it operates. Or those that involve continual exposure to salt water. Or where it experiences huge shock loads of over 100 G. Or shaft loads of hundreds of Newtons. But the MOST demanding applications are those where the encoder must meet ALL these requirements. And that is exactly where the Hengstler AX65 comes in.

Certified explosion-proof, built with marine-grade stainless steel, with a shock rating of 200 G and shaft load of 300 N, the AX65 is one tough encoder. The most compact absolute encoder in its class, its shallow depth and body diameter of only 59 mm allow it to fit where other explosion-proof encoders can’t. The explosion-proof certification makes it ideal for offshore oil platforms, mines, chemical plants, etc., as does the marine grade stainless steel of which it’s built. The shaft load rating eliminates the need for load modules, reducing costs.

The AX65 can be installed quickly and easily due to its flexible, quick-connect terminal system. Rounding out the AX65 is the choice of SSI or CANopen interface, which can save wiring costs by allowing a ring network configuration.


  • ATEX and IECEx certification for Gas, Dust and Mining
  • Most compact design of its class: 59 mm housing diameter / 70 mm mounting depth
  • Extreme robust design
  • 300 N axial and radial load
  • 200 g shock resistance / 30 g vibrations resistance
  • Protection class up to IP66 / IP67
  • Easy field installation
  • terminal box with cage clamp technology
  • Interfaces: SSI and CANopen

Another Article:


Product Family AX65
Ordering Information Rotary Encoder AX65
Function / Application Absolute
Technology Magnetic
Approval CE, ATEX und IECEx
Housing Diameter [mm] 59 mm
Solid- / Hollow Shaft Solid 10 mm
Protection Rating Housing IP66, IP67
Ambient Temperature [°C] -40 … +60 °C
Housing Option Stainless Steel
Increased Environmental Requirements Chemical resistance
Seawater resistant
Ex atmosphere
Connection Terminal Box
Revolutions [rpm] 700 … 3,000 rpm (depending on interface used)
Resolution ST [Bit] 12 Bit
Resolution MT [Bit] 12 … 16 Bit
Interface SSI

Download Data Sheet: Absolute Rotary Encoder ACURO AX65

Ref: hengstler.de