Woodward 8404-4005 Digital Speed Controller with Throttle Plate

Product Overview

The Woodward 8404-4005 is a fully programmable digital speed controller with an integrated bi-directional electric actuator and throttle plate. It belongs to the ProAct™ Digital Plus actuator family, developed for precise speed and throttle control on modern diesel and gas engines.

This unit replaces mechanical or hydraulic governors with a compact electronic solution. Therefore, system complexity, maintenance requirements, and installation time are significantly reduced.

The integrated digital speed controller continuously manages engine speed and throttle position. Moreover, the bi-directional actuator ensures smooth, stable control during rapid load changes.

Designed for demanding industrial environments, the 8404-4005 supports wide input voltage ranges and reliable operation across varying engine platforms.

Technical Specifications

Manufacturer: Woodward
Model number: 8404-4005
Product type: ProAct™ Digital Plus Speed Controller with Integrated Actuator
Functional description: Programmable digital speed controller with throttle plate
Actuator type: Bi-directional electric actuator
Motor technology: Limited Angle Torque (LAT) motor
Throttle bore diameter: 36 mm
Rated torque: 0.34 Nm
Control voltage range: 10–32 VDC
Current consumption: 2.5 A
Speed control: Fully programmable digital control
Mechanical travel: Rotary throttle actuation
Weight: 2.44 lbs (1.1 kg)
Category: Controls & Indicators
Subcategory: Speed Controller / Tachometer / Generator Speed Control
Condition: New

FAQ

Q1: What makes the Woodward 8404-4005 different from analog ProAct actuators?
A1: It integrates a fully programmable digital speed controller with a bi-directional actuator.

Q2: What voltage range does the 8404-4005 support?
A2: It operates reliably on control voltages from 10 to 32 VDC.

Q3: Is the throttle plate included in this model?
A3: Yes, the throttle plate is fully integrated into the actuator assembly.

Q4: Can this unit replace hydraulic or mechanical governors?
A4: Yes, it is designed as a direct electronic replacement for traditional governor systems.

Q5: What warranty is included with this product?
A5: A Radwell 2-year warranty is included, even if the factory warranty does not apply.