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Home › Industries › Marine
Marine casters face constant salt-air and washdown corrosion on docks, marinas, shipyards, and vessels, where a plated caster rusts out in a season. The spec is corrosion resistance first: stainless rigs, poly-on-aluminum wheels, and sealed bearings that survive salt spray and moisture. Capacity follows the equipment, from light dock carts to heavy shipyard tooling. CasterHQ stocks stainless, poly-on-aluminum, and sealed-bearing casters rated for the marine environment, priced and in stock.
Stainless the whole caster, not just the wheel. We see poly-on-steel casters put on boats because the wheel looks corrosion-proof, and then the steel rig and the bearing rust solid in a season of salt air. For marine we spec stainless rigs and sealed bearings or poly-on-aluminum so nothing in the load path can corrode.
Bob Camp, Caster Application Specialist, 45+ years
Our team specs marine casters by load per caster, floor and environment, mount, and any compliance the application demands, then confirms fit before you order. We stock the range for same-day shipping from Mansfield, Texas, so replacements do not stall your equipment.
Stainless steel rigs with sealed bearings, or poly-on-aluminum wheels, resist salt-air and washdown corrosion. The entire caster, including hardware and bearings, must be corrosion-resistant, not just the tread.
Zinc plating slows corrosion but does not stop it in constant salt exposure. In marine environments plated steel rigs and unsealed bearings fail quickly, so stainless is the durable choice.
Yes. Poly-on-aluminum wheels give a corrosion-proof core with a non-marking tread, useful for vessel and dock equipment where weight and corrosion both matter.
U-boat casters fit the U-shaped platform carts used in yards and transport. We stock replacement u-boat casters and wheels sized for those platforms.
Yes. Non-marking tread with sealed bearings maintains grip and rolls smoothly on wet, sloped surfaces, and brakes hold equipment on gangways and ramps.
Yes. Stainless ranges cover light dock carts through heavier equipment, and shipyard tooling can use kingpinless heavy-duty casters where corrosion exposure is intermittent.
Standards & references: ASTM B117 salt-spray corrosion test · ASTM A240 stainless plate references · ICWM caster load standard (MHI)
