Technical Overview

The Woodward 8404-067 ProAct Digital Plus is a high-performance electric rotary actuator integrated with a sophisticated digital driver. Engineered for the precise control of engine throttles and wastegates, this "all-electric" solution eliminates the need for complex hydraulic or pneumatic fluid power systems. The ProAct Digital Plus provides a dedicated 75° rotary output, allowing for direct coupling to valves and linkages in critical industrial and marine engine applications.

As part of Woodward's modern control ecosystem, the 8404-067 features an onboard digital microprocessor that handles all position control and diagnostic functions. It supports full field-programmability via CAN communication, enabling engineers to tailor the actuator’s response characteristics to specific engine dynamics and load requirements.

Detailed Technical Specifications

• Actuation Type: Fully electric rotary motion (No fluid power required).

• Output Travel: 75° rotary travel for optimized valve positioning.

• Control Interface: Integrated digital driver with CAN protocol support.

• Onboard Intelligence: Built-in advanced diagnostics for real-time fault monitoring and performance tracking.

• Programming: Fully field-programmable to accommodate various torque and speed profiles.

• Thermal Endurance:

• Operating Range: -10°C to +55°C.

• Storage Range: -40°C to +70°C.

• Environmental Resilience: Operates in 5% to 95% relative humidity (non-condensing).

• Mounting Configuration: Designed for standard DIN rail installation within control cabinets.

• Physical Mass: 1360g (approx. 3.0 lbs).

• Manufacturing Origin: USA.

Application and Field Reliability

The 8404-067 is the industry standard for gaseous and liquid fuel engines where high-speed, high-torque positioning is mandatory. Its digital architecture ensures long-term calibration stability and resistance to mechanical wear that typically affects analog systems. The integrated diagnostics allow for predictive maintenance, alerting operators to potential linkage binding or power supply issues before they result in system downtime.