Donut Fender: Circular Defense for Modern Mariculture & Ports

The ​Donut Fender is an innovative circular-shaped maritime protection system designed to safeguard aquaculture cages, fishing vessels, and port infrastructure from impacts, collisions, and environmental stressors. Its unique donut geometry and advanced material composition offer superior shock absorption, stability, and adaptability to diverse aquatic environments.

Key Features:

• ​Toroidal Shock Absorption: The hollow, ringed structure distributes impact forces evenly across the circumference, reducing localized damage to nets, hulls, or docks.
• ​High-Density Elastomer Material: Reinforced with natural rubber and synthetic polymers, it withstands UV, ozone, and saltwater corrosion for over 10 years in harsh marine conditions.
• ​Modular Installation: Lightweight, interlocking units fit various cage sizes or dock configurations; quick-deployment clamps simplify maintenance in remote areas.
• ​Buoyancy Assistance: Integrated foam cores provide passive flotation, preventing cages from sinking during storms or anchor strikes.
• ​Eco-Friendly Design: Non-toxic, biodegradable materials and smooth surfaces minimize marine ecosystem disruption.

Applications:

• ​Mariculture Farms: Protects offshore fish cages, shrimp farms, and mussel beds from vessel collisions or floating debris.
• ​Coastal Ports: Safeguards small fishing boats and moored yachts in crowded harbors with limited space.
• ​Oil Rig Platforms: Guards against anchor drags or subsea pipeline impacts in deepwater operations.
• ​Research Vessels: Provides reliable fending for oceanographic drones and submersibles during dives.
• ​Emergency Response: Rapid deployment aids in disaster recovery, such as securing floating debris after hurricanes.

The Donut Fender redefines maritime safety with its circular engineering and sustainable approach, offering cost-effective protection for both industrial and ecological marine applications.