Gas Springs
Attwood Marine SL33-60-5 Gas Spring 15" Extended 9.5" Compressed 60 lbs Force
Attwood Marine SL35-30-5 Gas Spring 8.46" Extended 12.04" Compressed 30 lbs Force
Attwood Marine SL36-50-5 Gas Spring 17.2" Extended 10.2" Compressed 50 lbs Force
Attwood Marine SL36-20-5 Gas Spring 17.2" Extended 10.2" Compressed 20 lbs Force
Sierra GS62790 Nitride Coated Nautalift Gas Lift Support 12-20 lb 8 Inch Stroke
Gas springs are essential hydraulic components that provide smooth, controlled lifting assistance for hatches, lids, and access panels on boats, vehicles, and equipment. Also known as gas struts or lift supports, these pressurized cylinders make it easy to open heavy compartments while preventing sudden drops or slams that could cause injury or damage. Whether you're replacing a worn-out hatch strut on your boat or upgrading storage access points, the right gas spring ensures safe, reliable operation for years to come.
How Gas Springs Work
Gas springs operate through a sealed cylinder filled with compressed nitrogen gas and a piston rod assembly. When you lift a hatch or lid, the gas spring extends smoothly, counterbalancing the weight and holding the panel in an open position. The controlled compression allows for gentle closing without slamming. Unlike traditional mechanical springs or hinges, gas springs provide consistent force throughout their range of motion, making them ideal for marine environments where corrosion resistance and reliable performance are critical.
Common Applications
In marine settings, gas springs are commonly found supporting engine compartment hatches, fish box lids, helm seat storage, and cabin access doors. The constant exposure to moisture, salt spray, and temperature variations means marine-grade gas springs must feature corrosion-resistant construction with stainless steel rods and protective coatings. Proper installation and occasional maintenance—such as cleaning salt buildup and checking mounting hardware—will maximize the service life of your gas springs.
Choosing the Right Gas Spring
Selecting the appropriate gas spring requires considering several factors: the weight of the panel being lifted, the mounting angle, the desired opening height, and the available mounting space. Gas springs are rated by force (typically measured in pounds or newtons), and choosing the correct force rating ensures smooth operation without over-assisting or under-supporting the load. Always verify mounting dimensions and end fittings to ensure compatibility with your existing hardware.
Top Brands for Gas Springs
When shopping for gas springs, trusted manufacturers make all the difference in durability and performance. Sierra offers a comprehensive selection of marine-grade gas springs engineered specifically for the harsh saltwater environment, with corrosion-resistant finishes that stand up to years of use. Sea-Dog Line is renowned for their premium marine hardware and provides gas springs designed for reliable operation in demanding boating conditions.