Original price was: $2,399.00.$1,996.00Current price is: $1,996.00.
As part of the new HD Series, the Hull Shield HD4 provides antifouling protection for hulls, drives, and other parts of a vessel that are prone to marine fouling.
The HD4 is a four-transducer system engineered as a stand-alone system that can add antifouling protection to hulls, drives, rudders, stabilizers, and more. This single system can provide ultrasonic antifouling protection for hulls up to 50ft in length or can be combined with additional systems for larger vessels. The HD4 can also be tasked with protecting drives and can provide coverage for two drives and two rudders simultaneously.
Enjoy 24/7 antifouling protection with a Hull Shield HD4 antifouling system. Ultrasonic antifouling uses the power of ultrasound to keep your hull and running gear clean and free of marine fouling. Our systems offer a fully automatic solution that works around-the-clock to keep your boat clean so that you don’t have to.
Hull Shield technology has proven itself over and over again with years of reliable service to boaters the world over. Our products are the preferred choice for boaters wanting the absolute best antifouling solution available.
Maintaining a clean hull can dramatically increases performance, speed, and fuel efficiency. Keeping your hull clean with ultrasound also extends the life of your bottom paint. Layers of valuable paint are removed every time the hull is scrubbed or power-washed. Hull Shield can help to end this routine and destructive cycle. You will enjoy less maintenance costs, haul-outs, while extending the life of your bottom paint. With Hull Shield, you can be confident that your boat is operating at peak performance and efficiency.
Hull Shield is an investment into your future – start saving money, time, and reduce your hassle today.
As part of the new HD series, The HD4 offers an increased efficiency profile that is capable of delivering nearly double the power directly to the transducers when compared to prior versions. Additionally, all HD series products feature our latest hardware technology that boosts overall effectiveness while providing more than twice as many ultrasound frequency bursts in key targeted ranges.
The HD4 is a four-transducer system engineered as a stand-alone system that can add antifouling protection to hulls, drives, rudders, stabilizers, and more. This single system can provide ultrasonic antifouling protection for hulls up to 50ft in length or can be combined with additional systems for larger vessels. The HD4 can also be tasked with protecting drives and can provide coverage for two drives and two rudders simultaneously.
Not just for hulls – Hull Shield can protect your drives and running gear too! Drives are isolated from the hull by motor mounts, gaskets, seals and other insulative materials that block ultrasound from passing to shafts, props, and rudders. Because of this, the drive system requires dedicated transducers to gain the most benefit from ultrasonic anti-fouling. Inboards, pods, sterndrives, and sail-drives can all be fitted with a transducer to enable full anti-fouling protection. Rudders are isolated from the hull in the same way as the drives and also require a dedicated transducer.
Ultrasonic antifouling works by using sound waves to physically repel fouling organisms away from the surface before they can permanently attach. As a bonus, the higher frequency band of ultrasound also disrupts the reproductive cycles of certain types of bio-fouling.
Hull Shield systems operate similar to a stereo and speakers. The controller sends ultrasound signals to transducers attached to the hull or running gear, the transducers receive the high-frequency signals, transforming them into ultrasonic pulses.
Each pulse creates a microscopic shockwave that runs across the hull and drive gear. These ultrasonic waves work to ablate, loosen, and repel fouling which is contacting the hull and drive surfaces. When used in conjunction with an ablative bottom paint, Hull Shield systems are the most effective and long-term antifouling solution available.
The Hull Shield HD4 controller is the brain behind the brawn. HD4 controllers generate signals for up to 4 transducers and consume about 1Ah of current at maximum potential (when the battery system voltage is at or above 12.7V). The controller is mounted in an accessible location near the 12V battery system supply. The transducer signal cables are routed back to the controller. The HD4 enclosure is IP68 and NEMA rated for waterproof installation, and all connections are IP67 rated or above.
HD series controllers operate on 12VDC battery systems. Please contact us for alternate options on 24VDC systems.
This system is equipped with four transducer emitters used to generate the ultrasonic signals which disrupt marine fouling.
The HD4 controller is designed for optimum efficiency and ultrasound power delivery. The system is engineered to provide stable operation, even when powered from solar and wind supported power systems with fluctuating battery cycles. The controller will actively adjust the output power to match the current charge-state of the battery system – conserving power when necessary to preserve battery power and extend the length of time the system can operate.
The controller actively monitors system voltage levels which allows it to automatically enter power conservation mode (PCM) when the system batteries are not being maintained. PCM is a completely automated process which reduces the average system power consumption to as low as 5 watts depending on available battery power.
This system features an automated sleep mode where it will automatically shut down to conserve system battery capacity for important tasks such as cranking motors and operating bilge pumps. The SLEEP MODE is activated when the HD4 detects that the battery voltage has dropped to 50% capacity (approximately 12.1V). When SLEEP MODE is activated, the Hull Shield halts all ultrasonic output and powers down; power consumption drops to near zero. The HD4 will automatically awaken when battery levels have returned to operational levels.
HULLS – each transducer provides approximately 200sqft of protected underwater surface area. A rough estimate of your underwater surface area can be calculated by doubling your draft, adding it to your beam, then multiplying by your LWL (length at water line).
DRIVES & RUNNING GEAR – one transducer can provide dedicated protection for any single isolated part. Examples of isolated parts are drive shaft & props, rudders, exterior engine brackets, struts, swim platforms, and trim tabs. Because these parts are isolated from the hull and each other, a transducer is required for each isolated part.
Hull Shield systems are simple in function and installation. Systems can be installed in a single day and require no technical skills. Besides the simple tools most customers have, everything required for an installation is included in with our products.
The Hull Shield controllers are best mounted in an accessible compartment. The transducers are simply attached directly to the surface of the hull or drive with the supplied 2-part epoxy.
Hull Shield transducers are waterproof and submersible. Transducers can be attached to the inside surface of the bilge, or externally on the transom.
All Hull Shield Ultrasonic products are fully covered under a Lifetime Warranty for the original purchaser. The warranty protects against defects in materials, workmanship, and parts issues.
| Weight | 9.41 lbs |
|---|---|
| Dimensions | 10 × 10 × 10 in |
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James –
Excellent product! The Hull Shield HD4 keeps my boat hull clean and free from fouling. Installation was simple, and it works perfectly without maintenance.
Elijah –
Fantastic purchase! The HD4 keeps my boat hull free from marine fouling. The setup was simple, and I haven’t had to worry about maintenance at all.
Isabella –
The HD4 has made a noticeable difference in how my boat handles. It stays clean, cuts down on fuel costs, and makes maintenance less stressful. I’m impressed by how efficient and reliable this system has been.
Olivia –
I’ve been using the HD4 for six months, and it’s been a game-changer. My 45ft boat is spotless, and there’s no drag due to fouling. Installation was straightforward, and the system runs quietly, making it a perfect choice for any boat owner.
Michael –
Amazing antifouling solution! My vessel’s hull and rudders remain in top shape. This system is effective and low-maintenance, saving me time and effort.
Emma –
The Hull Shield HD4 has exceeded my expectations. I installed it on my 48ft yacht, and it’s kept the hull and drives completely clean. This has improved performance and saved on cleaning costs. It’s easy to operate and eco-friendly, which is a big bonus for me.
Ava –
This system is worth every penny. My 50ft yacht has stayed in pristine condition since I installed the HD4. It’s silent, effective, and doesn’t need constant attention, which makes boating so much easier for me.
Benjamin –
I’ve saved so much time and money on hull cleaning since using the HD4. It works well, and I love how eco-friendly it is.
William –
Great technology! The system works as promised, keeping barnacles and algae away from my hull. I’ve noticed better speed and efficiency since installing it.
Sophia –
My boat performs significantly better now. The Hull Shield HD4 is effective at keeping marine growth at bay. It was easy to install and operates without any noise. My rudders and drives stay clean, and I highly recommend this to anyone with a medium to large vessel.
Lucas –
This ultrasonic antifouling system is perfect for my boat. My hull has been free from fouling for months now. Easy to install and very effective.
Henry –
Simple installation and excellent results. The Hull Shield HD4 has worked wonders in keeping the hull and drives of my vessel spotless. I’m beyond happy with it.
Charlotte –
Great system for antifouling! My boat stays clean without needing harsh chemicals. It’s eco-friendly and has reduced my cleaning expenses significantly over the past year.
Mia –
I am thoroughly impressed with this system! My 42ft boat remains in perfect condition, and I’ve completely eliminated cleaning hassles. It’s a bit pricey, but it’s worth it in the long term due to its efficiency.
Alexander –
The Hull Shield HD4 has transformed my boating experience. I no longer worry about barnacles or algae, and the system runs quietly and efficiently in the background.
Amelia –
Keeps everything spotless. From hulls to rudders and drives, the HD4 delivers on its promise of antifouling protection. It’s also easy to maintain, which is a plus.
Ethan –
After trying multiple antifouling solutions, I finally found one that works. The HD4 keeps my yacht clean and improves performance. Highly recommend it!
Harper –
Eco-friendly and reliable, the Hull Shield HD4 is a must-have for boaters. My vessel remains in excellent shape, and I’ve saved money on maintenance.
Mason –
I’ve been extremely satisfied with the performance of the HD4. It’s been six months, and my hull, rudders, and drives remain completely free of fouling.
Evelyn –
Amazing product! My 50ft yacht glides smoothly now that the HD4 keeps marine growth away. The system is effective, eco-conscious, and hassle-free to operate.
Logan –
Keeps my boat in top condition! The HD4 ensures there’s no fouling on the hull or drives. Installation was easy, and it’s been working perfectly.
Abigail –
The HD4 is an excellent antifouling system. I’ve had it for over a year, and my 45ft yacht’s hull and rudders are still spotless.
Jackson –
This system has been an incredible addition to my boat. It’s kept the hull clean, reduced drag, and saved me on fuel costs.
Emily –
The Hull Shield HD4 delivers as promised. My vessel’s hull, drives, and rudders are clean, and there’s no sign of marine growth anywhere.
Sebastian –
Worth the investment! The HD4 has kept my boat in pristine condition, eliminating cleaning costs and improving overall performance on the water.