Rubber SD-Fenders

Rubber SD-Fenders are square shaped fender units designed for marine fendering applications. They are manufactured from elastomeric materials to provide a resilient contact surface between vessels and berthing structures. The square fender profile offers a broad contact area to distribute loads and reduce localised stress on hulls and quay structures. These fenders are used where durable, repeatable impact absorption is required and are compatible with common mooring and fendering systems.

Square fenders are used to protect ships, barges and quay structures during berthing and mooring operations. Their geometry provides a large contact area that helps to spread berthing forces across the hull and dock face, reducing concentrated loads. Common applications include vessel-to-berth and vessel-to-vessel contact points, piers, quays and jetties where predictable energy absorption and structural protection are needed. Selection depends on operational conditions and the expected berthing energy.

SD fenders absorb impact through material deformation and controlled compression of the rubber compound. On contact, the rubber compresses and converts kinetic energy into strain energy, then dissipates it as heat as the material rebounds. The square shape increases the contact area, which reduces peak pressures and spreads forces more evenly across the fender and the protected structure. Design considerations include rubber compound properties, shape and mounting arrangement to achieve the required energy absorption characteristics.

Installation methods for square shaped fenders typically include bolting or fastening to backing plates, frames or direct mounting to the quay or vessel hull, ensuring correct alignment and secure attachment to handle operational loads. Routine maintenance involves visual inspections for wear, cuts or extrusion, checking mounting hardware and replacing damaged components. Cleaning to remove debris and monitoring for changes in material condition are recommended. Contact our team for technical advice on suitable mounting options and maintenance practices for specific applications.