Woodward 8256-016 EPG Rotary Actuator

Product Introduction

The Woodward 8256-016 EPG Rotary Actuator is a precision-engineered component designed for use with Woodward Electronic Governor (EPG) systems. It converts electrical energy into controlled mechanical motion to accurately manage fuel delivery in diesel and gas engines. This rotary actuator is part of Woodward’s highly reliable EPG actuator product line, offering robust torque, precise response, and smooth rotational output to maintain stable engine speed under varying load conditions.

Commonly integrated with Woodward analog and digital governors, the 8256-016 actuator enables precise fuel metering, improving overall engine control, stability, and responsiveness. It is often used in gensets, marine engines, locomotives, and various industrial prime movers, especially where electro-mechanical reliability and high torque delivery are critical.

Designed to operate in harsh industrial environments, this actuator features rugged housing, sealed bearings, and high-quality internal components, ensuring consistent performance and durability. With a direct coupling design, it simplifies installation and reduces mechanical wear compared to linkage-based systems.

Product Specifications

Product Applications

• Power Generation – Used in diesel and gas engine gensets to precisely control fuel flow and engine speed.

• Marine Propulsion – Provides accurate throttle control in ship engines to maintain speed and stability.

• Railway Locomotives – Helps regulate large engine outputs in locomotive engines, enhancing fuel efficiency.

• Oil & Gas Industry – Deployed in field power units and compressors to maintain speed/load regulation.

• Mining Equipment – Ensures stable operation of heavy-duty engines in remote, harsh environments.

• Industrial Engines – Controls power generation and mechanical drive systems requiring consistent engine control.

Product Advantages

• High Torque in Compact Design: Delivers up to 3.4 N·m of torque for high-performance engine applications.

• Fast Response Time: Sub-30 millisecond response ensures near-instant fuel adjustment under changing loads.

• Simplified Installation: Direct coupling eliminates complex linkages, reducing mechanical failure risks.

• Enhanced Reliability: Built with industrial-grade components, including sealed bearings and weatherproof housing.

• Wide Environmental Tolerance: Operates reliably in extreme temperatures and industrial conditions.

• Maintenance-Free Design: Minimal wear parts reduce maintenance cycles and associated costs.

• Precise Control: Seamlessly integrates with Woodward electronic governors for accurate speed control.

• Flexible Mounting Options: Compatible with various installation schemes for ease of integration.

• Electrically Efficient: Optimized for low current draw with high mechanical output.

• Industry Compliant: Meets CE and RoHS standards for environmental and safety compliance.

FAQ

1. Is the 8256-016 actuator compatible with Woodward 2301A and 723 controllers?
   Yes, it is fully compatible with most EPG systems, including 2301A, 2301D, 723, and 5300 series controllers.

2. What is the rated torque output of this actuator?
   It delivers up to 3.4 N·m (30 in-lb) of torque, sufficient for most mid-range engine throttle applications.

3. Does the actuator provide position feedback?
   Not internally, but it can be paired with external sensors for closed-loop position feedback if required.

4. What is the typical response time of the actuator?
   The response time is less than 30 milliseconds, ensuring rapid throttle response.

5. Can it operate in outdoor or marine environments?
   Yes, it features an IP65-rated enclosure, protecting it from dust, moisture, and water spray.

6. Is it suitable for high-temperature industrial environments?
   Yes, the actuator operates effectively between -40°C and +95°C.

7. What power supply does it require?
   It operates on 24 VDC with a current draw of up to 3.6 A under load.

8. Can the actuator travel angle be limited or adjusted?
   The mechanical travel is fixed, but travel limits can be set electronically via the controller.

9. Is this actuator compatible with redundant or backup control systems?
   Yes, it can be used in systems designed with redundant controls, depending on system configuration.

10. What mounting options are available?
    It supports both foot mounting and flange mounting for flexible installation.

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FAQ

1. Is the 8256-016 actuator compatible with Woodward 2301A and 723 controllers?
   Yes, it is fully compatible with most EPG systems, including 2301A, 2301D, 723, and 5300 series controllers.

2. What is the rated torque output of this actuator?
   It delivers up to 3.4 N·m (30 in-lb) of torque, sufficient for most mid-range engine throttle applications.

3. Does the actuator provide position feedback?
   Not internally, but it can be paired with external sensors for closed-loop position feedback if required.

4. What is the typical response time of the actuator?
   The response time is less than 30 milliseconds, ensuring rapid throttle response.

5. Can it operate in outdoor or marine environments?
   Yes, it features an IP65-rated enclosure, protecting it from dust, moisture, and water spray.

6. Is it suitable for high-temperature industrial environments?
   Yes, the actuator operates effectively between -40°C and +95°C.

7. What power supply does it require?
   It operates on 24 VDC with a current draw of up to 3.6 A under load.

8. Can the actuator travel angle be limited or adjusted?
   The mechanical travel is fixed, but travel limits can be set electronically via the controller.

9. Is this actuator compatible with redundant or backup control systems?
   Yes, it can be used in systems designed with redundant controls, depending on system configuration.

10. What mounting options are available?
    It supports both foot mounting and flange mounting for flexible installation.

Related Models from the Same Series or Function

Popular Woodward Models

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