Reliable Hydraulic Steering for Marine Autopilots

The Octopus Autopilot Drives 38mm Bore Linear Drive is a high-performance hydraulic actuator designed for marine vessels with mechanical steering systems. This advanced unit integrates a reversing pump and a hydraulic cylinder, delivering smooth and precise rudder control when connected to an autopilot system. Engineered for durability and ease of maintenance, this linear drive ensures reliable steering assistance while maintaining seamless manual operation when not engaged. Ideal for boats up to 60 feet in length, it provides robust thrust and torque to handle various marine conditions.

Efficient and Durable Hydraulic Performance

This hydraulic linear actuator is built with only five moving parts, ensuring exceptional reliability and minimal maintenance compared to gear and screw-driven alternatives. When engaged, the actuator’s solenoid valve locks the cylinder, allowing the autopilot to control rudder movement via an integrated DC motor and pump system. Once deactivated, the solenoid releases, allowing free rudder movement without additional resistance. The translucent oil reservoir provides a clear view of fluid levels for easy maintenance, and the unit is factory-filled with oil, eliminating the need for extra plumbing.

Technical Specifications

• Operating Voltage: 12vDC
• Cylinder Bore: 38mm
• Stroke Length: 305mm (12 inches)
• Variable Flow Rate: 600cc - 1.2 liters per minute
• Average Current Draw: 4-6 amps
• Maximum Current Draw: 19 amps
• Hardover Time (Suggested): 14-16 seconds
• Peak Thrust: 400kg (882 lbs)
• Maximum Rudder Torque: 1,200Nm (10,600 lbf-in)
• Maximum Boat Length: 18m (60 feet)

Product Dimensions

• Cylinder Bore: 38mm
• Stroke Length: 305mm (12 inches)

Key Features and Benefits

• Seamless integration with mechanical steering systems
• Hydraulically locks when engaged, providing precise autopilot control
• Minimal moving parts for increased reliability and easy servicing
• Factory-filled with oil, eliminating additional plumbing requirements
• Transparent oil reservoir for effortless fluid level monitoring
• Strong peak thrust and torque capacity for handling large vessels
• Works efficiently with variable flow rates for adaptable performance

Available Variants

• OCTAF1212LAM12 – Stroke Mounted Pump
• OCTAF1212LAR12 – Stroke Remote Pump

This hydraulic linear drive is a trusted solution for mariners seeking a dependable and efficient autopilot steering system. Designed for simplicity and durability, it ensures smooth and controlled navigation, even in demanding marine environments.