Ship hatch cover gas struts are hydraulic or pneumatic devices used to assist in the smooth opening and closing of heavy hatch covers. They provide controlled movement, reducing manual effort and enhancing operational safety. Hatch systems integrate these struts to ensure secure and efficient sealing of ship compartments.

Size: Typically range from 500 mm to 3000 mm in length, with diameters from 20 mm to 100 mm.

Grade: High-strength steel (ASTM A572 or equivalent), stainless steel (AISI 316), or aluminum alloys.

Viscosity: Hydraulic fluid viscosity ranges between ISO VG 15 to ISO VG 68, depending on operating temperature.

Buoyancy: Designed to be neutral or slightly positive buoyancy to prevent sinking if detached.

Material: Piston rods often chrome-plated steel, cylinders made of hardened steel or aluminum, seals from nitrile rubber (NBR) or fluorocarbon (FKM).

Pressure Rating: Operating pressures typically between 50 bar to 300 bar, depending on application.

Corrosion Resistance: Coatings like zinc plating or powder coating for marine environments.

Load Capacity: Supports hatch cover weights from 500 kg to 5000 kg per strut.

Temperature Range: -30°C to +80°C for standard models, with specialized variants for extreme conditions.

Mounting: Swivel or fixed ends with threaded or clevis attachments.