Raymarine Rotary Drive Type 2 – 12V

Description

The Raymarine Rotary Drive Type 2 12V is a heavy-duty electromechanical chain-drive actuator for compatible mechanically steered vessels. It uses a reversing 12V DC motor to turn the steering shaft through a correctly sized marine chain and sprocket arrangement. The drive is intended for vessels up to 20,000 kg, or 44,000 lb, displacement, and must be used as part of a complete autopilot system with a compatible actuator control unit, control head, heading sensor, and steering linkage. [252][264]

The Type 2 rotary drive develops up to 3,000 lb-in, or 340 Nm, of peak torque and has a listed shaft speed of 33 RPM. It draws 5A to 7A typically and up to 15A under full load. The 6 kg cast-alloy drive measures approximately 255 mm deep by 160 mm wide and includes a sprocket and installation hardware. Its electromechanical clutch reduces steering drag when disengaged for manual helm control.

Key Specifications

• Heavy-duty 12V electromechanical rotary drive for compatible mechanical steering systems.
• Designed for vessels up to 20,000 kg, or 44,000 lb, displacement.
• Produces up to 3,000 lb-in, or 340 Nm, of peak torque at a listed 33 RPM shaft speed.
• Connects to the steering mechanism through compatible #40 or #50 marine chain and correctly matched sprockets.
• Requires a compatible high-current autopilot course computer or actuator control unit.
• Draws approximately 5A to 7A in typical operation and up to 15A at full load.
• Measures approximately 255 mm deep by 160 mm wide, weighs 6 kg, and requires a strong bulkhead or pedestal-interior mount.
• Uses an electromechanical clutch for lower manual-steering drag when disengaged and carries an IPX6 splash-resistance rating.

Mechanical Installation

Rotary-drive installation requires correct sprocket sizing, chain alignment, chain tension, steering-shaft access, and strong structural mounting. Raymarine installation guidance specifies checking that the drive is secured to a substantial boat structure and that the drive and steering sprockets are in line when viewed side-on. Use correctly sized motor cabling based on total run length and at least 1.5 mm², or 16 AWG, copper wiring for the clutch connection. [264]

Do not select a chain drive solely from vessel displacement. Verify steering-shaft turns lock-to-lock, existing steering loads, sprocket ratio, available clearance, manual override behavior, course-computer output rating, and the required wiring and circuit protection.

Before Ordering

Confirm a compatible mechanically steered vessel up to 44,000 lb, a matched high-current course computer or ACU, steering-shaft and chain access, correctly engineered sprocket ratio, #40 or #50 chain compatibility, 12V power, 15A peak circuit capacity, 255 mm by 160 mm mounting space, structural support, and protected installation environment before purchase.