Product Overview
Seawater destroys hydraulic cylinders from both sides: it corrodes the tube exterior and paint film, and — worse — a breather drawing damp salt air into the reservoir side contaminates the whole hydraulic system. Marine-duty cylinders therefore specify a protection stack rather than a single feature: multi-layer marine epoxy over blast-cleaned steel, protected rod surfaces with optional bellows, seal compounds tolerant of splash exposure, and filtered or desiccant breathers sealing the fluid side. Internal corrosion matters as much as external: cylinders that rest extended in humid air for long periods need internal coatings or oil-side protection agreed at specification time. Manufacturers listed here build welded and tie-rod cylinders to class-society-adjacent practice for deck machinery, hatch covers, winches and steering, with coating DFT records, salt-spray test reports on the paint system and pressure/functional testing per unit as standard documentation.
OEM & Customization Capabilities
- Coating Systems – paint specification and DFT matched to service zone (splash zone vs sheltered).
- Fluid-Side Sealing – breather, wiper and seal package engineered as one contamination-control system.
- Test Documentation – pressure, leak and functional tests per unit with traceable serial records.
Industry Applications
- Hydraulic Cylinders
- Marine & Offshore