How Do Marine Airbags Work? A marine airbag works by inflating a cord-reinforced rubber cylinder with compressed air to lift a vessel off its keel blocks, then acting as a giant roller that carries the ship’s weight on its curved surface while the hull glides down a slipway into the water. The ship’

How Do General Surface Support Buoys Work? A general surface support buoy works by displacing water with a permanently buoyant closed-cell polyethylene (PE) or EVA foam core to support the submerged weight of mooring chains, ropes, hoses, or cables—while an internal steel frame carries the tensile l

How Do Pneumatic Rubber Fenders Work? A pneumatic rubber fender works by compressing trapped compressed air inside a reinforced rubber cylinder to convert a ship’s kinetic berthing energy into increased internal air pressure and elastic rubber deformation. Because air is highly compressible, the fen

How Do Foam Fenders Work? A foam fender works by converting a ship’s kinetic berthing energy into reversible compression of a closed-cell foam core wrapped in a tough elastomer skin. There is no compressed air inside—so the fender cannot deflate, keeps floating after skin damage, and needs no pressu

Cell rubber fenders are high-performance compression-type marine rubber fenders installed on quay walls, wharves, and terminal berths to absorb vessel berthing energy and protect both the ship hull and the dock structure. Their name comes from the hollow, cell-like cylindrical rubber body that compr

Quick Answer: What Are Pneumatic Rubber Fenders? A pneumatic rubber fender—often called a Yokohama fender—is a floating, cylindrical marine fender inflated with compressed air that acts as a shock absorber between two vessels (STS) or between a vessel and a dock (STD). Its reinforced-rubber body com