Marine springs and components
Lesjöfors supplies marine springs and components for boatbuilders, shipyards, retrofit teams, and marine equipment manufacturers. Our parts support controlled movement on offshore structures and a range of vessels, including leisure boats, cruise liners, cargo ships, rescue craft, and military vessels.
Marine springs for boats, ships, cruise liners, military vessels, and more
Marine springs play a vital role in managing movement, controlling force, and protecting essential systems across all types of vessels. At Lesjöfors, we supply marine springs and related components for leisure boats, cruise liners, cargo ships, rescue craft, military vessels and offshore structures, designed for reliable performance in harsh saltwater environments.
These components are engineered for steady, long-term use in doors, hatches, panels, and other key access points, as well as in marine propulsion systems. Whether for new builds or retrofit projects, our experts work closely with you to ensure the right spring is matched to each application, managing loads even under extreme sea conditions.
Custom marine-grade springs and components
Lesjöfors designs custom marine-grade springs and components built to perform in the toughest sea conditions. Our engineers review drawings, load requirements, and space constraints to develop gas springs and other parts tailored to each onboard system. The result is reliable motion control that keeps your equipment operating safely and efficiently, even in the most extreme conditions.
Precision motion in the harshest marine conditions
Marine gas springs ensure smooth, controlled movement across vessels, lifting hatches, stabilizing panels, and supporting access points exposed to saltwater, vibration, and constant use. Every unit is engineered from marine-grade materials for durability in harsh environments, with our engineers tailoring each design to match real-world loads and the demands of daily operations at sea.
Trusted by shipbuilders and retrofitters across the marine industry
Lesjöfors partners with shipbuilders and marine retrofit specialists to deliver reliable boat springs that enhance movement control and access across a wide range of vessels. Every design is engineered for long-term performance at sea, backed by expert guidance from concept to installation.
Why choose Lesjöfors for marine-grade springs and components?
Engineered for marine performance
Our marine springs ensure smooth, controlled motion on vessels of all sizes. Each component is designed for durability and consistent operation in demanding marine environments.
Built for saltwater resistance
Many of our marine components are made from AISI 316 stainless steel, a marine-grade alloy known for its high resistance to saltwater corrosion and pitting, even in harsh coastal conditions.
Custom pressure and fittings
We tailor marine gas springs to your required pressure range and offer a variety of custom fittings, end mounts, and locking options to ensure a perfect fit for each onboard system.
Consistent quality for daily use
Every spring is manufactured with precision and verified through strict quality control. This ensures long-lasting performance, even under constant motion and exposure at sea.
Co-creating seamless cruising experiences
Types of springs used in marine industry applications
Explore Stainless Steel Gas SpringsStainless steel gas springs
- Types: Available in hydraulic, pin-locking, and traction configurations
- Built for: performance in corrosive or washdown environments
- Materials: Stainless steel construction for maximum corrosion resistance
- Ideal for: food, medical, marine, and outdoor applications
- Stock & custom options available
Explore disc springsDisc springs
Explore compression springsCompression springs
- All types: Cylindrical, convex, conical, concave, variable pitch
- Wire diameter: 0.03 mm to 80 mm
- Features: Round, square, or rectangular wire profiles
- Materials: Carbon steel, stainless steel, and alloys
- Stock and custom options available
Explore extension springsExtension (tension) springs
- Designed for: Static, quasi-static, and dynamic loads
- Wire diameter: 0.1 mm to 65 mm
- Features: Hooks, loops, screw plugs, shackles, and custom ends
- Materials: Carbon steel, stainless steel, and alloys
- Stock and custom options available
Explore torsion springsTorsion springs
- Designed for: Torque with rotating movement
- Wire diameter: 0.1 mm to 65 mm
- Features: Legs can be straight, bent, or custom‑formed
- Materials: Carbon steel, stainless steel, and alloys
- Stock and custom options available
Explore stamped partsStamped parts
Explore constant force springsConstant force springs
- Stable, consistent pull from engineered strip geometry
- Flexible installation for partial or full extension
- Wire and coil dimensions tailored to specification
- Materials include stainless steel and spring steel with protective finish
Marine applications of Lesjöfors’ springs and components
Hatch and watertight door systems
Our gas springs provide controlled lifting and stabilization, while disc and compression springs maintain sealing preload and reliability in hatches and watertight doors exposed to vibration and seawater.
Pump, valve, and fluid handling systems
Our compression and disc springs support valves and pumps, with gas springs assisting safe, controlled access for inspection and maintenance in fuel, ballast, and bilge systems.
Propulsion and drivetrain assemblies
Disc springs maintain bolt preload in propulsion systems, and gas springs support safe, controlled access to drivetrain service panels and enclosures.
Deck machinery, winches, and lifting equipment
Gas springs stabilize moving panels and absorb shock, while disc, torsion springs, and stampings support braking, overload protection, and controlled movement in deck machinery.
Access panels, lockers, and control mechanisms
Gas springs enable smooth, controlled opening. Extension and torsion springs, as well as stampings, provide return force, retention, and reliable latch operation.
Electrical, safety, and auxiliary equipment
Gas springs enable controlled access, with stampings and constant force springs used for cables, covers, and deployable components in corrosive marine environments.
Marine-grade stainless steel: the highest quality materials
Stainless steel AISI 316 is the industry standard for marine springs and gas springs, offering excellent corrosion, pitting, and wear resistance in saltwater environments. Its strength and durability ensure consistent performance under harsh marine conditions. Lesjöfors relies on AISI 316 for many of our marine components to deliver safe, long-lasting service at sea.
Engineering excellence and world-class manufacturing
Our teams shape and test marine springs for safe use at sea. Every step, from early design to final checks, is handled in-house.
We offer:
- Advanced coiling, wire forming, pressing, and stamping for marine systems
- Material testing and certification for saltwater use
- CNC machining and in-house tooling for precise marine parts
- Careful assembly and finishing for long service life
- Quality systems that support safe, reliable use on board
Internationally recognised quality standards
Lesjöfors manufactures marine springs and components to strict global standards. Each part is checked for safe, steady use at sea with processes that support leisure, commercial, rescue, and military vessels.
- ISO 9001
- ISO 14001
- ISO 45001
- IATF 16949 (where applicable)
- PED68/2014/EU
We also follow DIN and other international marine specifications. All products come with clear traceability and full documentation for marine projects.
Marine-grade springs manufacturers: Co-creating the future of marine performance
Lesjöfors collaborates with shipbuilders and retrofit teams to advance the performance of modern marine vessels. Our marine-grade stainless steel springs and gas springs are engineered for safer access, smoother movement, and reliable protection of onboard systems.
Each component is carefully tested to meet real-world marine conditions, and our experts provide ongoing support through every stage of your project. Together, we shape the future of marine performance.
Our cases
Marine gas springs protect lives at sea
Explore our collaboration with the SSRS’s Victoria Class of rescue vessels, designing and gifting marine-grade springs for rescue hatches that withstand every extreme of the Scandinavian environment.
Marine springs for Sargo’s award-winning boats
Discover how we’ve been working with Sargo for nearly a quarter of a century, supplying marine-grade quality gas springs for exceptional modern cruising experiences.
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