Differences Between Extruded Fenders and Molded Fenders

Extruded fender systems typically absorb a minimum amount of energy. Therefore, they are typically used at the wale elevation of fender pile systems. They have also been used as festoon fenders, rub strips and as an energy absorbing element in a separator.

Extruded fenders are elements typically manufactured in a long length by an extrusion process. After manufacture, the elements are cut to length. These fender elements are typically used as fenders for small craft, rub strips on marine structures, and energy absorbing elements at the wale.

Examples of extruded fender shapes are ‘Side Mounted Hollow Bore’, ‘Cylindrical Fenders’, ‘D Type Fenders’, ‘Square Type Fenders’, ‘W Type Fenders’, ‘M Type Fenders’ and ‘Wing Type Fenders’.

Molded fenders are typically mounted to the vertical face of a marine structure. These systems are used to berth ships of similar size and hull curvature. Therefore, they are usually found in commercial ports.

Molded fenders are elements manufactured by the molded process. They typically have embedded metal plates cast into the molds. The fender elements are typically used as fenders for medium to large, flat sided vessels. The elements can be used as stand-alone fenders, combined with multiple fenders and a face panel, and energy absorbing elements at the wale. They include the shear fenders which absorb energy by deflecting parallel to the attachment plane.

Examples of molded fender shapes are ‘Arch Fender’, ‘Circle Fender’, ‘Circular Dock’, ‘Fender Bars’, ‘Hexagonal’, and the ‘buckling fender’ types, such as ‘UE Leg’ and ‘V Section’.

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