Seakeeper 4
The Seakeeper 4 is revolutionizing roll reduction performance on boats ~38-44 feet in a smaller, lighter package. Designed to run on DC power for boats without a generator, it can fit anywhere the Seakeeper 3 fits now, making it a great option for upgrading.
The next generation of Seakeeper innovations introduces the most efficient and most effective gyrostabilizers ever built.
More stabilization. Smaller Package.
Ideal for Boats
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Asymmetric Flywheel
An all-new flywheel design features a deeper lower hemisphere, enabling the motor to be tucked inside the flywheel. This design reduces overall height and provides the most efficient flywheel shape to maximize performance per pound and footprint.
ConnectBox Integration
The ConnectBox integrates with compatible on-board MFDs, eliminating the need to install an additional display for the Seakeeper. The ConnectBox keypad also allows the operator to control the Seakeeper directly from the unit.
Single Cylinder Brake Arm
The single-cylinder brake design saves space, weight, and enhances reliability by eliminating hoses and connections. It requires no annual service and incorporates redundant safety mechanisms.
Power Options
With the choice of DC or AC power on the Seakeeper 4 and Seakeeper 4.5 models respectively, everyone can enjoy the latest innovations – generator or not.
Asymmetric Flywheel
ConnectBox
Single-Cylinder Brake
Power Options
Faster Installation
The new frame can be disassembled to allow for installation in locations where it otherwise may not have fit.
Economical Maintenance
Zinc-nickel plated components, a single-cylinder brake design, and a redesigned cooling system provide better protection and easier maintenance.
Easier Access
Fewer mounting bolts, greater access clearances, and quick-release top cover fasteners make service faster and easier.
Seakeeper 4
Specifications
| Max Rated Speed | 8,250 RPM |
| Angular Momentum at Max Rated RPM | 4,000 N-M-S |
| Max Anti-rolling Torque at Max Rated RPM | 10,427 N-m |
| Spool-up Time to Max Rated RPM | 60 minutes (8,250 RPM) |
| Spool-up Time to Stabilization | 34 minutes (6,188 RPM) |
| Power Consumption | |
| Spool-Up Power | 1,050 Watts Max |
| Spool-Up Power Input | 12 VDC @ 88 Amps Max |
| Operating Power | 550 – 1,050 Watts |
| Operating Power Input | 12 VDC @ 46 – 88 Amps
110 VAC @ 30 Amps (50/60 Hz) |
| Control Power | 120 Watts Max |
| Control Power Input | 12 VDC @ 15 Amps Max |
| Seawater Pump Power Input | 12 VDC @ 15 Amps Max |
| Weight | 746 lb (338 kg) |
| Envelope Dimensions | 26.56 L x 28.05 W x 20.98 H (inches) 0.675 L x 0.713 W x 0.533 H (meters) |
| Noise Output | <72 dBC @ 3.3 feet (1 meter) |
| Seawater Supply to Heat Exchanger | 2.5 GPM (9.5 LPM) Minimum 4 GPM (15.2 LPM) Maximum |
| Ambient Air Temperature | 32F – 140F (0C – 60C) |
Seakeeper Warranty
To ensure peace of mind, all Seakeeper products come
with a multi-year factory warranty.
