Seakeeper

Eliminate Boat Roll

Seakeeper – Eliminate Boat Roll

Change your boating experience by adding a Seakeeper to your boat installed by Breakwater Marine Services. As the Northeast’s largest Seakeeper dealer we provide installation and service support like no other Seakeeper dealer in the Northeast can. With more installations under our belt than any other Northeast Seakeeper dealer you can trust us to install and service your Seakeeper properly the first time!

As an Authorized Seakeeper installation and service center (the largest Seakeeper dealer in the Northeast) we have the ability to install a Seakeeper on your sport fishing boat, trawler, mega yacht, or commercial vessel. We provide at-your-dock service for Seakeeper regardless of whether we installed it or not. Whether you are located in New Jersey, New York, Connecticut, Rhode Island, Massachusetts, New Hampshire, or Maine, we have the ability to install and service your Seakeeper!

Contact us today to learn more about how a Seakeeper can improve your boating experience or click Here to select a Seakeeper unit for your vessel! Need parts for your Seakeeper? Shop our complete selection of Seakeeper parts.

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Units

 

Seakeeper 30HD

Regular price $210,000.00

COMMERCIAL GRADE STABILIZATION
The Seakeeper 30HD is built to eliminate up to 95% of boat roll on vessels up to ~85 tons. Larger vessels can be fitted with multiple units to achieve optimal results. Unlike traditional external fins, the Seakeeper 30HD requires only modest electrical power and has no external appendages—meaning no drag or risk of snags.

Innovative Cooling System
Our patented cooling system allows the flywheel to spin at an extremely high rate of speed, providing ultimate performance in the smallest and lightest package possible.

Vacuum Sealed
Seakeeper’s vacuum encapsulation enables the flywheel to spin roughly three times faster, cuts flywheel weight by two-thirds and halves power requirements. Moreover, because the critical components (flywheel, bearings, and motor) are sealed for life in a vacuum, they are forever isolated from the marine environment.

Active Control
Seakepeeper’s active control optimizes gyro torque, providing an unsurpassed level of performance. Unlike a passively controlled gyro, which must be turned off in the roughest conditions and/or at higher speeds, the Seakeeper is effective at all speeds and can be used in all sea conditions.

Specifications

Rated Speed4,400 RPM
Angular Momentum at Rated RPM30,000 N-M-S
Anti-Rolling Torque at Rated RPM62,571 N-M
Spool-up Time to Rated RPM75 minutes (4,400 RPM)
Spool-up Time to Stabilization50 minutes (3,500 RPM)
Spool-up Power
AC Motor3000 Watts Max
DC Control240 Watts
Operating Power
AC Motor (sea state dependent)2000 – 3000 Watts
DC Control240 Watts
AC Input Voltage208 – 230 VAC (+/- 10%), 50/60 Hz, Single Phase
DC Input Voltage24 VDC @ 10 Amps
Weight3,920 lbs (1,778 kg)
Envelope Dimensions54.3 L x 55.9 W x 43.5 H (inches)
1.38 L x 1.42 W x 1.11 H (meters)
Noise Output72-74 dBC at 1 meter

 

 

 

Seakeeper 20HD

Regular price $157,050.00

COMMERCIAL GRADE STABILIZATION
The Seakeeper 20HD is optimized to eliminate up to 95% of boat roll on boats ~65 – 74 feet, up to ~60 tons. Unlike traditional external fins, the Seakeeper 20HD requires only modest electrical power and has no external appendages, and can be installed virtually anywhere on board.

Innovative Cooling System
Our patented cooling system allows the flywheel to spin at an extremely high rate of speed, providing ultimate performance in the smallest and lightest package possible.

Vacuum Sealed
Seakeeper’s vacuum encapsulation enables the flywheel to spin roughly three times faster, cuts flywheel weight by two-thirds and halves power requirements. Moreover, because the critical components (flywheel, bearings, and motor) are sealed for life in a vacuum, they are forever isolated from the marine environment..

Active Control
Seakepeeper’s active control optimizes gyro torque, providing an unsurpassed level of performance. Unlike a passively controlled gyro, which must be turned off in the roughest conditions and/or at higher speeds, the Seakeeper is effective at all speeds and can be used in all sea conditions.

Specifications

Rated Speed3,850 RPM
Angular Momentum at Rated RPM20,000 N-M-S
Anti-Rolling Torque at Rated RPM43,076 N-M
Spool-up Time to Rated RPM70 minutes (3,850 RPM)
Spool-up Time to Stabilization50 minutes (3,100 RPM)
Spool-up Power
AC Motor3000 Watts Max
DC Control240 Watts
Operating Power
AC Motor (sea state dependent)1000 – 3000 Watts
DC Control240 Watts
AC Input Voltage208 – 230 VAC (+/- 10%), 50/60 Hz, Single Phase
DC Input Voltage24 VDC @ 10 Amps
Weight2,960 lbs (1,342 kg)
Envelope Dimensions52.7 L x 55.9 W x 40.4 H (inches)
1.34 L x 1.42 W x 1.03 H (meters)
Noise Output72-74 dBC at 1 meter

 

 

 

Seakeeper 12HD

Regular price $96,495.00

COMMERCIAL GRADE STABILIZATION
Optimized for ~55’ – 64’ boats, up to ~35 tons, the Seakeeper 12HD is designed to eliminate up to 95% of boat roll. Our gyros are completely internal, require only modest electrical power, and can be installed virtually anywhere on board.

Innovative Cooling System
Our patented cooling system allows the flywheel to spin at an extremely high rate of speed, providing ultimate performance in the smallest and lightest package possible.

Vacuum Sealed
Seakeeper’s vacuum encapsulation enables the flywheel to spin roughly three times faster, cuts flywheel weight by two-thirds and halves power requirements. Moreover, because the critical components (flywheel, bearings, and motor) are sealed for life in a vacuum, they are forever isolated from the marine environment.

Active Control
Seakepeeper’s active control optimizes gyro torque, providing an unsurpassed level of performance. Unlike a passively controlled gyro, which must be turned off in the roughest conditions and/or at higher speeds, the Seakeeper is effective at all speeds and can be used in all sea conditions.

Specifications

Rated Speed4,600 RPM
Angular Momentum at Rated RPM12,000 N-M-S
Anti-Rolling Torque at Rated RPM23,040 N-M
Spool-up Time to Rated RPM45 minutes (4,600 RPM)
Spool-up Time to Stabilization35 minutes (3,680 RPM)
Spool-up Power
AC Motor3000 Watts Max
DC Control240 Watts
Operating Power
AC Motor (sea state dependent)1000 – 3000 Watts
DC Control240 Watts
AC Input Voltage208 – 230 VAC (+/- 10%), 50/60 Hz, Single Phase
DC Input Voltage24 VDC @ 10 Amps
Weight2,195 lbs (996 kg)
Envelope Dimensions42.6 L x 43.2 W x 32.8 H (inches)
1.08 L x 1.10 W x 0.83 H (meters)
Noise Output68-73 dBC at 1 meter

 

 

 

Seakeeper 7HD

Regular price $70,960.00

COMMERCIAL GRADE STABILIZATION
Designed to eliminate up to 95% of boat roll on ~45’ – 54’ vessels, up to ~25 tons, the Seakeeper 7HD is completely internal, requires only modest electrical power, and can be installed virtually anywhere on board.

Innovative Cooling System
Our patented cooling system allows the flywheel to spin at an extremely high rate of speed, providing ultimate performance in the smallest and lightest package possible.

Vacuum Sealed
Seakeeper’s vacuum encapsulation enables the flywheel to spin roughly three times faster, cuts flywheel weight by two-thirds and halves power requirements. Moreover, because the critical components (flywheel, bearings, and motor) are sealed for life in a vacuum, they are forever isolated from the marine environment.

Active Control
Seakepeeper’s active control optimizes gyro torque, providing an unsurpassed level of performance. Unlike a passively controlled gyro, which must be turned off in the roughest conditions and/or at higher speeds, the Seakeeper is effective at all speeds and can be used in all sea conditions.

Specifications

Rated Speed7,000 RPM
Angular Momentum at Rated RPM7,000 N-M-S
Anti-Rolling Torque at Rated RPM14,630 N-M
Spool-up Time to Rated RPM35 minutes (7,000 RPM)
Spool-up Time to Stabilization25 minutes (5,600 RPM)
Spool-up Power
AC Motor3000 Watts Max
DC Control240 Watts
Operating Power
AC Motor (sea state dependent)1000 – 2000 Watts
DC Control240 Watts
AC Input Voltage208 – 230 VAC (+/- 10%), 50/60 Hz, Single Phase
DC Input Voltage24 VDC @ 10 Amps
Weight1,210 lbs (550 kg)
Envelope Dimensions33.5 L x 35.6 W x 28.3 H (inches)
0.852 L x 0.903 W x 0.720 H (meters)
Noise Output68-70 dBC at 1 meter

 

 

 

Seakeeper 35

Regular price $216,300.00


The Seakeeper 35 is designed to eliminate up to 95% of boat roll on boats up to ~100 tons, vessels ~85′ and larger. Multiple units can be fitted for larger boats. Unlike traditional external fins, the Seakeeper 35 requires only modest electrical power, has no external appendages— meaning no drag or risk of snags—and can be installed virtually anywhere on board.

Innovative Cooling System
Our patented cooling system allows the flywheel to spin at an extremely high rate of speed, providing ultimate performance in the smallest and lightest package possible.

Vacuum Sealed
Seakeeper’s vacuum encapsulation enables the flywheel to spin roughly three times faster, cuts flywheel weight by two-thirds and halves power requirements. Moreover, because the critical components (flywheel, bearings, and motor) are sealed for life in a vacuum, they are forever isolated from the marine environment.

Active Control
Seakepeeper’s active control optimizes gyro torque, providing an unsurpassed level of performance. Unlike a passively controlled gyro, which must be turned off in the roughest conditions and/or at higher speeds, the Seakeeper is effective at all speeds and can be used in all sea conditions.

Specifications

Rated Speed5,150 RPM
Angular Momentum at Rated RPM35,000 N-M-S
Anti-Rolling Torque at Rated RPM73,000 N-M
Spool-up Time to Rated RPM65 minutes (5,150 RPM)
Spool-up Time to Stabilization45 minutes (4,380 RPM)
Spool-up Power
AC Motor5000 Watts Max
DC Control240 Watts
Operating Power
AC Motor (sea state dependent)2000 – 5000 Watts
DC Control240 Watts
AC Input Voltage208 – 230 VAC (+/- 10%), 50/60 Hz, Single Phase
DC Input Voltage24 VDC @ 10 Amps
Weight3,920 lbs (1,778 kg)
Envelope Dimensions54.3 L x 55.9 W x 43.5 H (inches) 
1.38 L x 1.42 W x 1.11 H (meters)
Noise Output72-74 dBC at 1 meter
Sea Water Supply to Heat Exchanger53.0 LPM (14 GPM) maximum 
38.0 LPM (10 GPM) minimum
Ambient Air Temperature0° – 60° C (32° – 140° F)

 

 

 

Seakeeper 26

Regular price $161,800.00


Designed to eliminate up to 95% of boat roll, the Seakeeper 26 is sized for vessels ~70′ – 84’, up to ~75 tons. Unlike traditional external fins, the Seakeeper 26 has no outside appendages, requires only modest electrical power, and can be installed virtually anywhere on board.

Innovative Cooling System
Our patented cooling system allows the flywheel to spin at an extremely high rate of speed, providing ultimate performance in the smallest and lightest package possible.

Vacuum Sealed
Seakeeper’s vacuum encapsulation enables the flywheel to spin roughly three times faster, cuts flywheel weight by two-thirds and halves power requirements. Moreover, because the critical components (flywheel, bearings, and motor) are sealed for life in a vacuum, they are forever isolated from the marine environment.

Active Control
Seakepeeper’s active control optimizes gyro torque, providing an unsurpassed level of performance. Unlike a passively controlled gyro, which must be turned off in the roughest conditions and/or at higher speeds, the Seakeeper is effective at all speeds and can be used in all sea conditions.

Specifications

Rated Speed5,000 RPM
Angular Momentum at Rated RPM26,000 N-M-S
Anti-Rolling Torque at Rated RPM56,000 N-M
Spool-up Time to Rated RPM90 minutes (5,000 RPM)
Spool-up Time to Stabilization70 minutes (4,250 RPM)
Spool-up Power
AC Motor3000 Watts Max
DC Control240 Watts
Operating Power
AC Motor (sea state dependent)1000 – 3000 Watts
DC Control240 Watts
AC Input Voltage208 – 230 VAC (+/- 10%), 50/60 Hz, Single Phase
DC Input Voltage24 VDC @ 10 Amps
Weight2,960 lbs (1,342 kg)
Envelope Dimensions52.7 L x 55.9 W x 40.4 H (inches) 
1.34 L x 1.42 W x 1.03 H (meters)
Noise Output72-74 dBC at 1 meter
Sea Water Supply to Heat Exchanger30 LPM (8 GPM) maximum 
15 LPM (4 GPM) minimum
Ambient Air Temperature0° – 60° C (32° – 140° F)

 

 

 

Seakeeper 16

Regular price $99,400.00


Crafted for ~60’ – 69’ boats, up to ~50 tons, the Seakeeper 16 is designed to eliminate up to
95% of boat roll. The Seakeeper 16 is completely internal, requires only modest electrical power, and can be installed virtually anywhere on board.

Innovative Cooling System
Our patented cooling system allows the flywheel to spin at an extremely high rate of speed, providing ultimate performance in the smallest and lightest package possible.

Vacuum Sealed
Seakeeper’s vacuum encapsulation enables the flywheel to spin roughly three times faster, cuts flywheel weight by two-thirds and halves power requirements. Moreover, because the critical components (flywheel, bearings, and motor) are sealed for life in a vacuum, they are forever isolated from the marine environment.

Active Control
Seakepeeper’s active control optimizes gyro torque, providing an unsurpassed level of performance. Unlike a passively controlled gyro, which must be turned off in the roughest conditions and/or at higher speeds, the Seakeeper is effective at all speeds and can be used in all sea conditions.

Specifications

Rated Speed6,130 RPM
Angular Momentum at Rated RPM16,000 N-M-S
Anti-Rolling Torque at Rated RPM30,720 N-M
Spool-up Time to Rated RPM57 minutes (6,130 RPM)
Spool-up Time to Stabilization45 minutes (5,210 RPM)
Spool-up Power
AC Motor3000 Watts Max
DC Control240 Watts
Operating Power
AC Motor (sea state dependent)2300 – 3000 Watts
DC Control240 Watts
AC Input Voltage208 – 230 VAC (+/- 10%), 50/60 Hz, Single Phase
DC Input Voltage24 VDC @ 10 Amps
Weight2,195 lbs (996 kg)
Envelope Dimensions42.6 L x 43.2 W x 32.8 H (inches) 
1.08 L x 1.10 W x 0.83 H (meters)
Noise Output68-73 dBC at 1 meter
Sea Water Supply to Gyro Heat Exchanger30 LPM (8 GPM) maximum 
15 LPM (4 GPM) minimum
Ambient Air Temperature0°-60° C (32°-140° F)

 

 

 

Seakeeper 9

Regular price $73,100.00


An evolution of our original M7000, the Seakeeper 9 is the product that changed the boating experience forever! Specially designed to stabilize boats ~50’ – 59’, or up to ~30 tons..

Innovative Cooling System
Our patented cooling system allows the flywheel to spin at an extremely high rate of speed, providing ultimate performance in the smallest and lightest package possible.

Vacuum Sealed
Seakeeper’s vacuum encapsulation enables the flywheel to spin roughly three times faster, cuts flywheel weight by two-thirds and halves power requirements. Moreover, because the critical components (flywheel, bearings, and motor) are sealed for life in a vacuum, they are forever isolated from the marine environment.

Active Control
Seakepeeper’s active control optimizes gyro torque, providing an unsurpassed level of performance. Unlike a passively controlled gyro, which must be turned off in the roughest conditions and/or at higher speeds, the Seakeeper is effective at all speeds and can be used in all sea conditions.

Specifications

Rated Speed9,000 RPM
Angular Momentum at Rated RPM9,000 N-M-S
Anti-Rolling Torque at Rated RPM18,810 N-M
Spool-up Time to Rated RPM55 minutes (9,000 RPM)
Spool-up Time to Stabilization38 minutes (7,650 RPM)
Spool-up Power
AC Motor3000 Watts Max
DC Control240 Watts
Operating Power
AC Motor (sea state dependent)1500 – 2000 Watts
DC Control240 Watts
AC Input Voltage208 – 230 VAC (+/- 10%), 50/60 Hz, Single Phase
DC Input Voltage24 VDC @ 10 Amps
Weight1,210 lbs (550 kg)
Envelope Dimensions33.5 L x 35.6 W x 28.3 H (inches) 
0.852 L x 0.903 W x 0.720 H (meters)
Noise Output68-70 dBC at 1 meter
Sea Water Supply to Heat Exchanger30 LPM (8 GPM) maximum 
15 LPM (4 GPM) minimum
Ambient Air Temperature0°-60° C (32° – 140° F)

 

 

 

Seakeeper 6

Regular price $42,200.00


The Seakeeper 6 packs a punch. Designed toeliminate up to 95% of boat roll on boats up
to ~20 tons, vessels ~40 – 49’, the Seakeeper 6provides 6,000 N-M-S of stabilizing power in a compact, efficient package.

Innovative Cooling System
Our patented cooling system allows the flywheel to spin at an extremely high rate of speed, providing ultimate performance in the smallest and lightest package possible.

Vacuum Sealed
Seakeeper’s vacuum encapsulation enables the flywheel to spin roughly three times faster, cuts flywheel weight by two-thirds and halves power requirements. Moreover, because the critical components (flywheel, bearings, and motor) are sealed for life in a vacuum, they are forever isolated from the marine environment.

Active Control
Seakepeeper’s active control optimizes gyro torque, providing an unsurpassed level of performance. Unlike a passively controlled gyro, which must be turned off in the roughest conditions and/or at higher speeds, the Seakeeper is effective at all speeds and can be used in all sea conditions.

Specifications

Rated Speed9,700 RPM
Angular Momentum at Rated RPM6,000 N-M-S
Anti-Rolling Torque at Rated RPM15,690 N-M
Spool-up Time to Rated RPM40 minutes (9,700 RPM)
Spool-up Time to Stabilization24 minutes (7,700 RPM)
Spool-up Power
AC Motor2300 Watts
DC Control125 Watts
Operating Power
AC Motor (sea state dependent)1050 – 2300 Watts
DC Control125 Watts
AC Input Voltage110 – 230 VAC (+/- 10%), 50/60 
Hz, Single Phase
DC Input Voltage12 VDC @ 15 Amps
Weight395 kg (870 lbs)
Envelope DimensionsLength x Width x Height
0.756 L x 0.755 W x 0.626 H (meters)
29.77 L x 29.71 W x 24.65 H (inches)
Noise Output70-72 dBC at 1 meter
Sea Water Supply to Heat Exchanger30 LPM (8 GPM) maximum 
15 LPM (4 GPM) minimum
Ambient Air Temperature0° – 60° C (32° – 140° F)

 

 

 

Seakeeper 5

Regular price $32,340.00


Small, but powerful. We pushed performance engineering to all new levels to create a small, efficient gyro. The Seakeeper 5 is designed to eliminate up to 95% of boat roll on ~40’ – 49’ boats, up to ~20 tons.

Innovative Cooling System
Our patented cooling system allows the flywheel to spin at an extremely high rate of speed, providing ultimate performance in the smallest and lightest package possible.

Vacuum Sealed
Seakeeper’s vacuum encapsulation enables the flywheel to spin roughly three times faster, cuts flywheel weight by two-thirds and halves power requirements. Moreover, because the critical components (flywheel, bearings, and motor) are sealed for life in a vacuum, they are forever isolated from the marine environment.

Active Control
Seakepeeper’s active control optimizes gyro torque, providing an unsurpassed level of performance. Unlike a passively controlled gyro, which must be turned off in the roughest conditions and/or at higher speeds, the Seakeeper is effective at all speeds and can be used in all sea conditions.

Specifications

Rated Speed10,700 RPM
Angular Momentum at Rated RPM5,000 N-M-S
Anti-Rolling Torque at Rated RPM13,089 N-M
Spool-up Time to Rated RPM50 minutes (10,700 RPM)
Spool-up Time to Stabilization35 minutes (9,035 RPM)
Spool-up Power
AC Motor2000 Watts Max
DC Control180 Watts
Operating Power
AC Motor (sea state dependent)1500 – 2000 Watts
DC Control180 Watts
AC Input Voltage110 – 230 VAC (+/- 10%), 50/60 Hz, Single Phase
DC Input Voltage12 VDC @ 15 Amps
Weight790 lbs (358 kg)
Envelope Dimensions29.7 L x 30.0 W x 24.7 H (inches) 
0.755 L x 0.763 W x 0.626 H (meters)
Noise Output70-72 dBC at 1 meter
Sea Water Supply to Heat Exchanger30 LPM (8 GPM) maximum 
15 LPM (4 GPM) minimum
Ambient Air Temperature0° – 60° C (32° – 140° F)
(Seakeeper 5 also comes in a DC version, the SK 3DC – Contact Seakepeer for specs)

 

 

 

Seakeeper 3

Regular price $27,700.00


They say great things come in small packages and we set out to prove it. The Seakeeper 3 is our biggest smallest thing yet, specially designed to eliminate roll on ~30’ – 39’ boats. Refits have never been easier than with the Seakeeper 3’s leaning post installation option!

Innovative Cooling System
Our patented cooling system allows the flywheel to spin at an extremely high rate of speed, providing ultimate performance in the smallest and lightest package possible.

Vacuum Sealed
Our patented cooling system allows the flywheel to spin at an extremely high rate of speed, providing ultimate performance in the smallest and lightest package possible.

Active Control
Seakepeeper’s active control optimizes gyro torque, providing an unsurpassed level of performance. Unlike a passively controlled gyro, which must be turned off in the roughest conditions and/or at higher speeds, the Seakeeper is effective at all speeds and can be used in all sea conditions.

Specifications

Rated Speed10,700 RPM
Angular Momentum at Rated RPM5,000 N-M-S
Anti-Rolling Torque at Rated RPM13,089 N-M
Spool-up Time to Rated RPM50 minutes (10,700 RPM)
Spool-up Time to Stabilization35 minutes (9,035 RPM)
Spool-up Power
AC Motor2000 Watts Max
DC Control180 Watts
Operating Power
AC Motor (sea state dependent)1500 – 2000 Watts
DC Control180 Watts
AC Input Voltage110 – 230 VAC (+/- 10%), 50/60 Hz, Single Phase
DC Input Voltage12 VDC @ 15 Amps
Weight790 lbs (358 kg)
Envelope Dimensions29.7 L x 30.0 W x 24.7 H (inches) 
0.755 L x 0.763 W x 0.626 H (meters)
Noise Output70-72 dBC at 1 meter
Sea Water Supply to Heat Exchanger30 LPM (8 GPM) maximum 
15 LPM (4 GPM) minimum
Ambient Air Temperature0° – 60° C (32° – 140° F)
(Seakeeper 5 also comes in a DC version, the SK 3DC – Contact Seakepeer for specs)

 

 

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