Solid rubber fender (non-floating type) is a historically early and widely applied collision protection equipment for docked ships. It can be categorized into shear-type, rotational-type, and compression-type based on the stress condition of the fender. According to the structure of the fender, solid rubber fenders can be further divided into D-type, cone-shaped, drum-shaped, fan-shaped, rectangular, cylindrical fenders, and so on.
Floating rubber fender can float freely on the water surface and is categorized based on its internal buffer medium into: inflatable rubber fender and filled rubber fender.
The inflatable rubber fender operates by using compressed air as a medium, dissipating collision energy through the work of compression air.
Foam-filled fender, also known as solid polyurethane fender, is internally filled with a buffering medium primarily consisting of closed-cell foam materials, such as foam EVA, foam polyurethane, and foam rubber, among others.
