Why Choose the B&G Hydraulic Ram T2 12V for Your Vessel?

Navigating open waters demands reliability, and the B&G Hydraulic Ram T2 12V delivers just that as a robust autopilot drive unit. Engineered for boats with mechanical primary steering systems that allow back-driving, this self-contained linear actuator integrates a cylinder, pump, motor, clutch, and reservoir into one sealed, pre-filled package. It's the ideal choice for sailors seeking seamless autopilot performance without compromising on manual control.

Whether you're on a coastal cruiser or a larger offshore yacht, this ram ensures smooth, responsive steering. When disengaged, it moves freely with your helm, but engage the autopilot, and it takes over with precision—extending or retracting via a bi-directional motor. Built-in relief valves safeguard against shocks from rudder impacts or unexpected groundings, protecting both the unit and your boat's structure.

Key Performance Highlights

This ram stands out for its impressive power-to-size ratio. It generates up to 700 kg of intermittent thrust, enabling quick hard-over times around 9 seconds for most setups. Operating comfortably from -20°C to +65°C, it's ready for diverse climates, from chilly northern latitudes to tropical seas. The 62-bar relief valve setting adds an extra layer of durability, while back-drive force stays low at about 7 kg during a 12-second hard-over cycle, minimizing helm feedback.

Electrical and Compatibility Essentials

Powered by a 12V DC motor drawing up to 100 watts (max 22.5A at 25% duty), it's efficient for extended use. Paired exclusively with B&G's H5000 or NAC-3 course computers, it features a reversing motor, IP44 protection against splashes, and a 1m flying lead for straightforward wiring. The clutch coil runs at a continuous 12 watts, and it meets ignition protection standards for safer installs in engine spaces. Use mineral-based ISO VG10 hydraulic oil for optimal longevity.

Detailed Specifications

Superior Build for Marine Environments

Crafted from high-grade aluminium alloy with SP270 corrosion protection, the body withstands saltwater exposure. The chrome-plated stainless steel piston rod resists wear, while nitrile and PTFE seals ensure leak-free operation over thousands of cycles. This combination makes it a favorite among serious mariners who prioritize low-maintenance gear.

Installation and Operation Insights

Mounting is straightforward on vessels up to mid-size yachts—align it with your steering quadrant or tiller arm for optimal leverage. Connect to your B&G autopilot computer, and you're set for hands-free navigation. In autopilot mode, the course computer activates the solenoid clutch and drives the motor as needed. Always disengage before manual overrides to avoid strain. For best results, check oil levels periodically and inspect seals during routine haul-outs.

Real-World Advantages Over Basic Rams

Unlike simpler electric rams, this hydraulic unit offers higher thrust in a compact form, reducing battery drain during long passages. Its sealed design eliminates air bleeding hassles, and the clutch allows true "off" steering feel. Boaters report fewer failures in rough conditions compared to chain-and-sprocket drives, thanks to fewer moving parts exposed to the elements.

Frequently Asked Questions