Absolute encoder

Solid shaft:
Hollow shaft:
Incremental:
Singleturn:
Multiturn:

Interested in our rotary encoders, but still have change requests? We are happy to modify it for you so that it fits perfectly.

Learn more

  • Tel.: +49 / 7424 - 89 - 0
We will be pleased to help you.

  • Hengstler GmbH
    Uhlandstr. 49
    78554 Aldingen
  • Tel. +49 / 7424 - 89 -286
  • Support request

Absolute Encoder by Hengstler

HENGSTLER's ACURO absolute rotary encoders offer innovative engineering, easy operation and optimised 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.


Our Product Highlight:

ACURO AC58 Profinet Encoder

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Rotary_encoder/Absolute_encoder/Profinet Encoder Highlight - ACURO AC58
Diameter
58 mm
Resolution
ST: 10 ... 22 Bit
MT: 4 ... 12 Bit
Solid- / Hollow Shaft
Hollow 9,52 ... 14 mm, Solid 6 ... 12 mm
Protection case
IP50 / IP64 / IP67
Interface
BiSS / SSI, CANopen, Profibus, and 9 more
Approval
UL, CE
Features
Available in multiple interfaces
-40 to +100°C operating temperature
10,000 rpm in continuous operation
Rotary_encoder/Absolute_encoder/ACURO AC36 - Absolute Encoder
Diameter
38,1 mm
Resolution
ST: 12 ... 19 Bit
MT: 12 Bit
Solid- / Hollow Shaft
Hollow 8 mm, Solid 6 mm
Protection case
IP50 / IP64
Interface
BiSS / SSI
Approval
UL, CE
Features
-40°C to 100°C operating temperature
10,000 rpm in continuous operation
Optional sinus 1 Vss
Rotary_encoder/Absolute_encoder/ACURO AR62 - Absolute Encoder
Diameter
58 mm
Resolution
ST: 12 Bit
MT: 12 ... 16 Bit
Solid- / Hollow Shaft
Solid 9,52 ... 12 mm
Protection case
IP67 / IP 69K
Interface
BiSS / SSI, Analog, CANopen
Approval
UL, CE, E1, DNV
Features
-40°C to +100°C operating temperature
IP69K
12 bit single-turn and 16 bit magnetic multi-turn
Rotary_encoder/Absolute_encoder/ACURO AR63 - Absolute Encoder
Diameter
58 mm
Resolution
ST: 12 Bit
MT: 12 ... 16 Bit
Solid- / Hollow Shaft
Solid 9,52 ... 10 mm
Protection case
IP67 / IP69K
Interface
BiSS / SSI, Analog, CANopen
Approval
UL, CE, E1, DNV
Features
-40°C to +100°C operating temperature
IP69K
12 bit single-turn and 16 bit magnetic multi-turn
Rotary_encoder/Absolute_encoder/ACURO AD36 - Absolute Encoder
Diameter
38,1 mm
Resolution
ST: 12 ... 22 Bit
MT: 12 Bit
Solid- / Hollow Shaft
Hollow 8 mm
Protection case
< IP40
Interface
BiSS / SSI
Approval
UL, CE
Features
-40°C to 120°C operating temperature
10,000 rpm in continuous operation
Optional sinewave 1 Vpp
Rotary_encoder/Absolute_encoder/ACURO AD34 - Absolute Encoder
Diameter
38,1 mm
Resolution
ST: 12 ... 19 Bit
MT: 12 Bit
Solid- / Hollow Shaft
Solid 6 mm
Protection case
< IP40
Interface
BiSS / SSI
Approval
UL, CE
Features
-15°C to 120°C operating temperature
10,000 rpm in continuous operation
Optional sinewave 1 Vpp
Rotary_encoder/Absolute_encoder/ACURO AD35 - Absolute Encoder
Diameter
38,1 mm
Resolution
ST: 12 ... 22 Bit
Solid- / Hollow Shaft
Hollow 6 ... 8 mm
Protection case
< IP40
Interface
BiSS / SSI
Approval
UL, CE
Features
-15°C to 120°C operating temperature
10,000 rpm in continuous operation
Optional sinewave 1 Vpp
Rotary_encoder/Absolute_encoder/ACURO AD58 - Absolute Encoder
Diameter
58 mm
Resolution
ST: 12 ... 22 Bit
MT: 12 Bit
Solid- / Hollow Shaft
Hollow 10 ... 12 mm, Solid 10 mm
Protection case
< IP40
Interface
BiSS / SSI
Approval
UL, CE
Features
Mounting depth 23,65 mm
-15°C to 120°C operating temperature
10,000 rpm in continuous operation
Optional sinewave 1 Vpp
Rotary_encoder/Absolute_encoder/AD58S - DRIVE-CLiQ / ACURO link
Diameter
58 mm
Resolution
ST: 20, 24 Bit
MT: 12 Bit
Solid- / Hollow Shaft
Tapered Solid Shaft 9.25 mm; Taper 1:10, Shaft with integrated Double-Cardanic coupling hub
Protection case
IP40 or IP50 (depending on interface used)
Interface
DRIVE-CLiQ, ACURO® link for Single Cable Solution
Approval
UL, CE, SIL2 PLd, category 3, SIL3, PLe, category 3
Features
Encoder for high performance motion control
Functional Safety (SIL2 PLd, category 3)
DRIVE-CLiQ interface or ACURO link interface
Up to 10,000 rpm continuous operation
Rotary_encoder/Absolute_encoder/ACURO AC59 - Absolute Encoder
Diameter
58 mm
Resolution
ST: 10 ... 17 Bit
MT: 12 Bit
Solid- / Hollow Shaft
Solid 9,52 ... 10 mm
Protection case
IP67
Interface
BiSS / SSI, Parallel
Approval
UL, CE
Features
-40°C to 100°C operating temperature
6,000 rpm in continuous operation
stainless steel housing
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Frequently asked questions

A rotary encoder, often referred to as simply a shaft encoder, is an electro-mechanical device that converts angular positioning into output signals. Rotary encoders can be broadly segmented by their feedback type as incremental or absolute.
Rotary encoders translate the mechanical rotational motion of an object such as a motor shaft into an electronic signal. Optical rotary encoders measure rotation by shining a LED light through a disc with markings onto an optical sensor to detect motion. Magnetic rotary encoders use a similar principle but measure motion as a magnetized wheel turns and is detected by a magnetic sensor. 
Incremental rotary encoders output a stream of ubiquitous pulses over 360 degrees of rotation, hence the term pulses per revolution of PPR. Incremental rotary encoders can have one channel output (A), two channel output (AB, known as quadrature) as well as an optional index channel (Z).

Absolute rotary encoders output a unique digital word or bit for each position over 360 degrees of rotation. This digital word must be communicated in the same language as the controlling system with options including parallel, serial, field bus and ethernet based communication protocols.

Rotary encoders should be used in any application that requires precision motion control. While a power can be supplied to a motor to make it turn, to control exactly how fast it actually turns  requires real time feedback so that the controlling device can increase or decrease power to achieve a consistent motor speed or shaft position. Rotary encoders are therefore indispensable in precision motion control applications including servo motor feedback, robotics, factory automation and more.

Absolute Encoder by Hengstler


ACURO AC58 Profinet Encoder