Hengstler Absolute Rotary Encoder ACURO AX71

Absolute Rotary Encoder ACURO AX70
Absolute Rotary Encoder ACURO AX71

Hengstler is a leading European manufacturer of industrial components for counting and control applications, such as counters / timers, rotary encoders, industrial and temperature controllers, relays, and printers and cutters. Hengstler offers a wide range of incremental and absolute encoders that provide reliable performance in challenging environments such as construction machinery, CNC machining, oil and gas, agriculture, mining and more.

Absolute Rotary Encoder ACURO AX71

HENGSTLER’s ACURO absolute rotary encoders offer innovative engineering, easy operation and optimized functional dependability. The platform-based concept enables particularly compact construction and modular internal components. As a result of this sophisticated modular system, HENGSTLER is in a position always to provide the right variant for applications involving motor feedback and automation. Equipped with an open BiSS sensor interface, these rotary encoders are ideal for all requirements and prepared for the future.

Explosion-proof AX71 absolute encoders with a stainless steel housing have been designed specifically for use in potentially explosive atmospheres. The pressure-resistant housing has been developed in compliance with the EN 60079 series of standards for use in explosive atmospheres and is permitted for use in environments where there is a risk of gas or dust explosion, zones 1 and 21. The encoders are available with a number of interfaces for use in various applications.


  • ATEX certificate for gas and dust explosion-proof use
  • Ingress protection up to IP67
  • Diameter only 70 mm
  • High degree of robustness
  • Also available with rust-resistant stainless steel housing
  • Resolution up to 29 bits (17 bits ST, 12 bits MT)


Paint shops, Petrochemicals, Bagging systems, Mixing installations, Silo installations, Mills.

Another Article:


Product Family AX71
Ordering Information Rotary Encoder AX71
Function / Application Absolute
Technology Optical
Approval CE
Housing Diameter [mm] 70 mm
Solid- / Hollow Shaft Solid 10 mm
Protection Rating Housing IP64 / IP67
Ambient Temperature [°C] -40 … +60 °C
Housing Option Stainless Steel
Increased Environmental Requirements Chemical resistance
Seawater resistant
Ex atmosphere
Connection Cable
Revolutions [rpm] 10,000 rpm
Resolution ST [Bit] 10 … 17 Bit
Resolution MT [Bit] 12 Bit
Interface BiSS / SSI
SSI programmable

Download Data Sheet: Absolute Rotary Encoder ACURO AX71

Ref: hengstler.de