✅ 316 Marine Grade: Premium stainless steel construction offers ultimate resistance to saltwater corrosion & rust.
✅ Heavy Hatch Lift: High-pressure force (100N-2500N) easily lifts heavy fiberglass deck hatches & engine covers.
✅ Salt Spray Tested: Certified to withstand 1000+ hours of salt spray without pitting or seizing.
✅ Marine Seals: Special Viton seals prevent seawater ingress, ensuring long life in wet environments.
Colewell Stainless Steel Gas Struts for Boat Hatches are engineered to survive the harshest marine environments. Unlike standard steel springs that rust and seize within months at sea, our struts are manufactured from premium 316 Marine Grade Stainless Steel, offering superior resistance to saltwater, humidity, and UV exposure.
Designed specifically as a boat hatch spring lift, they provide effortless assistance for lifting heavy fiberglass deck hatches, engine room covers, and livewell lids. With marine-grade sealing technology, they ensure smooth operation and safety on yachts, fishing boats, and commercial vessels.
| Force Capacity | 100N - 2500N. High-pressure nitrogen charge allows for lifting heavy engine hatches and teak-covered decks with ease. |
| Material Grade | 316 Stainless Steel (Cylinder & Rod). The highest standard for marine corrosion resistance, preventing pitting and rust stains. |
| Sealing Tech | Marine Viton Seals: Chemically resistant to saltwater and cleaning agents, preventing gas leakage in humid conditions. |
| Operating Temp | -40℃ to +80℃. Reliable performance in both arctic freezing waters and tropical heat. |
Tested to endure 1000+ hours of continuous salt spray exposure (ASTM B117) without functional degradation or structural corrosion.
Available with optional external locking tubes to rigidly hold heavy engine hatches open, ensuring mechanic safety during maintenance.
ISO 9001 certified manufacturing. Meets global marine safety standards for watertight integrity and load bearing.
• Fittings: 316 SS Eyelets or Ball Studs.
• Dimensions: Custom lengths to replace discontinued struts on older vessel models.
Wet Storage: Ideal for anchor lockers, rope lockers, and fish boxes where water exposure is constant. Prevents rust stains on your deck.
Heavy Lift: Supports heavy sound-insulated engine covers. 316 SS construction ensures functionality even in the hot, humid engine room environment.
316 Grade Stainless Steel guarantees no rust, even when submerged or in salt spray.
Designed to handle the heavy weight of fiberglass hatches and teak decks.
Electropolished mirror finish looks great on yachts and resists water spots.
Self-lubricating design requires no greasing, keeping your deck clean.
We adjust pressure and fittings to match specific boat models and hatch weights.
Hydraulic damping prevents heavy hatches from slamming shut.
Colewell is a specialized supplier for the marine industry. We understand that salt water is unforgiving. That's why we use only certified 316 stainless steel for our marine line.
From small center consoles to superyachts, our boat hatch springs deliver the durability and aesthetic appeal that boat owners demand.
A: Yes, they are made from 316 Stainless Steel, the industry standard for marine corrosion resistance, far superior to 304 stainless or regular steel.
A: You need to weigh your hatch at the lifting point. Contact us with the hatch weight and dimensions, and our engineers will calculate the exact force needed.
A: Yes, our seals are rated up to 80°C, and the stainless steel construction handles the humidity and heat of engine bays perfectly.
A: We offer a range of 316 stainless steel mounting brackets and ball studs that can be purchased separately or as a kit.
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