
Boat hatch gas springs are chosen for marine hatches because they make everyday operation safer, smoother, and virtually maintenance-free. Instead of manually lifting heavy lids or worrying about them slamming shut, gas springs provide steady support and controlled motion using compressed nitrogen. Their stainless-steel construction resists saltwater corrosion, ensuring long-lasting performance even in harsh marine environments. In short, if you want reliable hatch control and hands-free safety on your boat, gas springs are the smart, durable solution.
What Are Boat Hatch Gas Springs and How They Work?
Boat hatch gas springs (or struts/lifters) are sealed cylinders with compressed nitrogen that provide smooth, controlled lifting and support for heavy marine hatches, using stainless steel for corrosion resistance. They simplify access to engine compartments and storage, with force (Newtons/lbs) matched to the hatch’s weight, often using online calculators or replacement specs, and need proper mounting for optimal performance, ensuring they hold the lid open securely.

How They Work – Simple and Reliable Mechanics
- 1Mechanism: A piston rod moves in and out of a cylinder filled with pressurized nitrogen gas and hydraulic oil.
- 2Function: The compressed gas provides force to lift and hold the hatch, while the oil dampens movement for smooth operation.
- 3Marine Grade: Stainless steel construction resists saltwater corrosion, crucial for marine environments.
Why Boat Hatch Struts Improve Safety and Comfort
If your boat requires frequent access to engine bays, lockers, or fuel storage, boat hatch struts can make a world of difference. Once installed, they eliminate the need to lift heavy covers and prevent accidental slams. You’ll notice smoother movement, safer operation, and less fatigue during every inspection.
If you’re upgrading or replacing old units, you can view our boat hatch gas springs here to explore marine-grade models that last longer and perform better.
Key Considerations for Selection & Use
When selecting stainless steel gas struts for boat hatches, keep these factors in mind:
- Force (Newtons/lbs): Match the gas spring’s force to your hatch weight. A 10 kg lid typically needs about 100 N.
- Length: Measure from center-to-center of the end fittings to ensure proper fit.
- Mounting: Position near the hinge for balance and strength.
- Replacement: Change both struts together after 8–10 years for consistent lift.
Common Mistakes to Avoid
Even high-quality gas springs can fail if installed or selected incorrectly. Avoid these errors:
- 1Installing with the piston rod pointing upward—it should face down to keep the seal lubricated.
- 2Using non-stainless models in marine environments.
- 3Replacing only one strut when both are worn.
A Real-World Example from a Boat Owner

A yacht owner once struggled to lift his heavy engine hatch every week. After installing Gastac gas springs, he could open it with one hand—and it stayed open securely. Even after months in saltwater exposure, the stainless-steel finish showed zero corrosion.
Built on Trust and Certification – The Gastac Difference
As a professional gas springs manufacturer and gas springs supplier, Gastac has been providing reliable marine-grade gas struts since 2007. Certified under IATF 16949 and ISO 9001:2015, Gastac ensures stable quality, competitive pricing, and a two-year after-sales warranty. Every Gastac gas strut is engineered to perform consistently under real marine conditions.
Is It Right for You?
If your hatch is heavy, frequently used, or exposed to saltwater, then boat hatch gas springs are absolutely the right choice. They ensure steady motion, safer handling, and long-term durability—turning every hatch operation into a one-hand task.
Take the Next Step – Find the Right Fit for Your Boat
Ready to make your boat safer and easier to maintain?
👉 Explore our Boat Hatch Gas Springs – Browse marine-grade options designed for long-lasting reliability.
👉 Contact Us – Get expert help choosing or customizing your gas springs for bulk or wholesale orders.
👉 Shop Online – Order standard models directly for quick replacement and installation.
Ian Martin
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