Inflatable floating pneumatic yokohama marine rubber fender – Popular updated fender products in the international shipping industry today
The inflatable ship rubber fender, also known as the inflatable rubber bumper, is a hollow bladder-type anti-collision device made from high-strength synthetic rubber and special skeleton materials. It uses compressed air as the cushioning medium to absorb ship impact energy, achieving collision prevention.
Inflated floating yokohama ship rubber fenders possess comprehensive performance characteristics such as low reaction force, high energy absorption efficiency, and fatigue resistance durability. Their features include significant impact energy absorption, minimal reverse force on vessels, simple installation, excellent elasticity, and lightweight. The products are primarily categorized into types like 50kPa and 80kPa based on inflation pressure, and are widely used in various scenarios such as ships, offshore platforms, port terminals, and bridge piers.

Definition and Working Principle

Inflatable rubber fender is a hollow bag type anti-collision device made of high-strength synthetic rubber and special skeleton materials, which forms a buffering system with specific pressure and elastic modulus by filling compressed air.
Its working principle is based on the synergistic effect of gas compressibility and rubber deformation characteristics, which can effectively absorb the kinetic energy of ship collisions through its own deformation, and evenly distribute the impact load. At the same time, it has comprehensive performance such as low reaction force, high energy absorption efficiency, and anti fatigue durability. According to the type, fenders can be divided into two types: 50kPa (0.05MPa) and 80kPa (0.08MPa)

Structure and Material

Inflatable rubber fenders are mainly composed of hollow rubber airbags made of high-strength synthetic rubber and special skeleton materials. Its basic structure includes outer layer adhesive, inner layer adhesive, curtain fabric layer (skeleton material), winding ring, end flange, as well as components such as inflation pipe, deflation valve, one-way valve, etc. The outer layer of adhesive protects the skeleton material and the inner layer of adhesive from external damage; The inner layer of adhesive prevents gas leakage and maintains air pressure; The curtain fabric layer serves as the skeleton material to provide structural strength.
Referring to the patent “An Inflatable Rubber Fender Structure” (CN202320874102.0), its structure also includes a buffering anti-collision mechanism and a sealing mechanism. The buffer anti-collision mechanism (such as fixed blocks, connecting ropes, and anti-collision tires) cooperates with the inner sealing plate to enhance the buffering and shock absorption effect; Sealing mechanisms, such as flanges and hemispherical sealing shells, can prevent components such as inflation pipes, deflation valves, and check valves from being corroded by water mist, thereby improving their service life.
According to the form of external protection, fenders can be divided into unsheathed and sheathed types. Sheath type (such as tire chain mesh, rope tire, wire rope tire mesh, etc.) extends the service life of the fender by wrapping the sheath (such as tire rope mesh) outside the bag