Octopus 7 Stroke Remote 38mm Bore Linear Drive – 12V – Up To 45 or 24,200lbs

Description

The Octopus 7-Inch Stroke Remote 38 mm Bore Linear Drive is a 12V self-contained hydraulic linear actuator for mechanically steered vessels up to 14 m, or 45 ft, and 11,000 kg, or 24,200 lb. The remote configuration separates the reversing pump from the hydraulic cylinder, allowing the pump to be installed away from the rudder linkage when stern space or access is limited. Flexible hydraulic hoses connect the remote pump and cylinder. [307][308]

The actuator provides a 178 mm, or 7-inch, stroke through a 38 mm bore cylinder. Octopus lists variable flow from 500 cc to 1 L per minute, a suggested hardover time of 12 to 14 seconds, 750 Nm maximum rudder torque, and 400 kg, or 882 lb, peak thrust. It is a drive unit only, so add a compatible autopilot course computer, heading sensor, control display, rudder feedback where required, and properly engineered mechanical linkage. [307]

Key Specifications

• 12V hydraulic linear actuator with separate remote pump and 38 mm bore cylinder.
• Designed for compatible mechanically steered vessels up to 14 m, or 45 ft, and 11,000 kg, or 24,200 lb.
• Provides a 178 mm, or 7-inch, actuator stroke.
• Uses variable hydraulic flow from 500 cc to 1 L per minute.
• Suggested hardover time is 12 to 14 seconds when matched to the correct steering geometry.
• Delivers up to 750 Nm of rudder torque and 400 kg, or 882 lb, peak thrust.
• Average draw is typically 4A to 6A, with a listed maximum current of 19A on 12V DC.
• Includes a reversing pump, hydraulic cylinder, and required drive assembly; verify exact mounting hardware and hose requirements with the selected SKU.

Remote Pump Layout

The remote layout is advantageous when the rudder quadrant area does not have enough room for an integrated pump-on-cylinder assembly. The cylinder mounts to the tiller arm or quadrant, while the pump can be positioned in a more accessible or protected location. The drive is factory-filled with oil and normally does not require additional hydraulic plumbing beyond the hoses joining the pump and cylinder. [307]

When the autopilot is disengaged, the cylinder moves freely with the rudder. When automatic steering is active, the solenoid valve locks the actuator and the reversing pump moves the ram. De-energising the solenoid disconnects the autopilot from the rudder to preserve manual steering. [307]

Before Ordering

Confirm vessel displacement up to 24,200 lb, required 7-inch stroke, available tiller-arm or quadrant geometry, structural mounting points, remote-pump location, flexible-hose routing, compatible 12V course computer, 19A circuit capacity, full rudder travel, manual steering operation, and any required rudder-feedback sensor before purchase.