Marine and industrial machinery requires reliable position feedback, even in environments exposed to saltwater, vibration, shock and demanding operating conditions. The Hengstler ACURO AR62 absolute rotary encoder is designed to meet these challenges with a compact construction, robust housing and precise position measurement.

Suitable for applications such as deck cranes, winches and marine propulsion systems, the ACURO AR62 combines absolute position sensing with flexible communication interfaces and a batteryless multi-turn measurement system.

For businesses looking for a reliable rotary encoder for marine equipment or industrial motion control, the ACURO AR62 is a solution worth considering.

What Is the Hengstler ACURO AR62 Rotary Encoder?

The Hengstler ACURO AR62 is an absolute rotary encoder that measures the angular position of a rotating shaft and provides position feedback to a connected control system.

Its compact dimensions and rugged design make it suitable for machinery where installation space is limited and dependable feedback is essential. The encoder is also available in redundant configurations with multiple sensors in a single housing, supporting applications that require additional measurement redundancy.

Key Features of the Hengstler ACURO AR62

1. Saltwater-Resistant Housing for Marine Environments

Marine equipment is frequently exposed to moisture, saltwater and changing environmental conditions. The ACURO AR62 features a saltwater-resistant aluminium housing designed to withstand demanding operating environments.

With IP67/IP69K protection, the encoder is suited to applications requiring protection against dust and water ingress under the conditions defined by the applicable protection ratings. A stainless steel housing option is also available for selected configurations.

2. Accurate Absolute Position Measurement

Accurate position feedback is essential for controlled movement in cranes, winches and propulsion systems.

The ACURO AR62 offers the following position measurement specifications:

• Single-turn resolution: 12 bits

• Multi-turn resolution: 12, 13 or 16 bits

• Absolute accuracy: ±1°

• Repeatability: ±0.2°

These capabilities help control systems monitor shaft position and support precise motion control in demanding applications.

3. Batteryless Multi-Turn Technology

The multi-turn version uses an electronic, batteryless, zero-energy and non-wearing system to record the number of shaft revolutions.

By eliminating the need for a battery to maintain multi-turn information, this technology can simplify maintenance requirements and support reliable position measurement in industrial applications.

4. Flexible Communication Interfaces

The ACURO AR62 supports integration with different control architectures through its available interfaces.

Depending on the selected version, communication options include:

• CANopen

• SSI interface for the single-turn version

• Analogue output options of 0–10 V or 4–20 mA for the single-turn version

Selecting the appropriate interface helps ensure compatibility with the existing PLC, motion controller or automation system. Always verify the interface availability for the required configuration.

5. Compact Design for Space-Constrained Installations

The ACURO AR62 combines robust construction with a compact form factor.

• Housing diameter: 58 mm

• Overall depth: 32 mm

• Integrated synchro flange for versatile mounting

Its compact dimensions can help simplify installation in machinery where space is restricted, without compromising the requirements of the intended application.

Applications of the ACURO AR62 Absolute Rotary Encoder

The combination of environmental resistance, absolute position feedback and compact dimensions makes the ACURO AR62 suitable for a range of demanding applications.

Marine deck cranes and winches: Position feedback for controlled lifting, lowering and rotation.

Marine propulsion systems: Shaft position measurement in applications involving Azipod or Voith-Schneider drive units.

Industrial motion control: Absolute rotary position measurement in machinery that requires reliable feedback.

Redundant sensing systems: Configurations with multiple sensors in one housing for applications that require redundant position measurement.

The final encoder configuration should be selected according to the mechanical installation, environmental conditions, interface requirements and control-system compatibility.

Why Choose an Absolute Rotary Encoder for Marine Equipment?

An absolute rotary encoder provides a defined position value rather than relying solely on incremental movement counts. This can be valuable in marine machinery, where accurate position feedback is important for equipment control and operational consistency.

When selecting a marine rotary encoder, engineers should consider:

• Required single-turn or multi-turn resolution

• Position accuracy and repeatability

• Saltwater and water-ingress protection requirements

• Shaft load, vibration and shock conditions

• Electrical interface and controller compatibility

• Housing material and mounting dimensions

The Hengstler ACURO AR62 addresses several of these requirements through its compact design, environmental protection and flexible interface options.

Enquire About the Hengstler ACURO AR62 Through ARC

Looking for a Hengstler ACURO AR62 absolute rotary encoder for your marine, automation or industrial application?

ARC can assist with your product enquiry and help you identify the appropriate encoder configuration based on your application requirements.

Contact our team with your required resolution, communication interface, mounting arrangement and operating environment so that the suitable product configuration can be evaluated.

Need a rotary encoder for your application?

Contact ARC today to enquire about the Hengstler ACURO AR62 absolute rotary encoder. Share your technical requirements with our team for product availability, configuration details and assistance with your enquiry.