The Donut Fender is a specific type of Foam Fenders. It is designed to simply slip over a stationary monopile. Due to its construction, the fender floats up and down with the fluctuating water levels and rotates when vessels berth and slide along the fender. The Donut Fender is designed with a 100% closed cell cross-linked polyethylene foam core, a reinforced elastomeric skin and low friction pads at the internal steel core. Donut Fenders are available in diameters from 1,270 mm to 4,220 mm and a maximum pile diameter of 610 mm to 2,388 mm. Additionally, mooring crowns, counterweights (for sub-marine applications) or other features like protective nettings can be added. The foam hardness, skin thickness, pile/fender diameter and also the height of the fender can be changed on request.
Advantages and Features
Proportional load deflection curve
Low shear forces
Self-adjusting to changing water levels
Low installation costs
Generally maintenance free
Individual drafts can be controlled by counterweights
Application
Locks and dry dock entrances, corner protection, turning dolphins, areas with large tidal variations or bridge protections
Other monopile structures
Submarine jetties
Company Profile
Please let me know if you have any requirements, I am happy to work with you and I will do my best to provide the more professional suggestion and best price for you. Evergreen Maritime would be pleased to receive your design input allowing us to engineer the correct type, size and overall layout of the Donut Fender.
Audited Supplier 
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