Welcome to Hongruntong Marine, a global manufacturer of high-performance marine fenders for ports, vessels, and offshore structures.
We offer a complete range of pneumatic fenders, foam fenders, donut fenders, and hydro-pneumatic fenders, designed to protect your vessel and dock from collision impact and ensure safe mooring in all sea conditions.
| Parameter | Range / Option | Description |
|---|---|---|
| Diameter | 300 mm – 2500 mm | Custom sizes for different vessel sizes |
| Length | 500 mm – 5000 mm | Adjustable for berthing needs |
| Compression Ratio | 10% – 30% | Defines impact energy absorption |
| Material | Neoprene, EPDM, PU Foam | Salt, UV, and wear-resistant |
| Temperature Range | -20°C – +60°C | Suitable for all climates |
| Lifespan | 8 – 15 years | Verified under ISO marine conditions |
Pneumatic fenders offer excellent energy absorption with low reaction force, making them ideal for ship-to-ship and ship-to-dock operations. Their air-filled design ensures flexibility and resilience, reducing the risk of damage during berthing.
Hydro-pneumatic fenders are engineered for high-load applications, providing consistent vertical alignment even under tidal changes. These fenders are especially suitable for submarines and specialized vessels requiring precise docking protection.
Foam-filled fenders are solid, non-floating, and maintenance-free solutions for long-term marine protection. The closed-cell foam core combined with a durable polyurethane skin ensures resistance to wear, weather, and marine conditions.
Donut fenders rotate freely around mooring posts, providing 360° protection. Their design adapts to tides and wave movements, making them perfect for docks and piers that experience frequent fluctuations.
Explore our premium selection of fenders for a boat, engineered to protect your vessels and docks under various marine conditions. Each type is crafted for durability, high energy absorption, and reliable performance.
| Product | Key Features | Typical Use | Learn More |
|---|---|---|---|
| Pneumatic Fender | - Air-filled design for high energy absorption - Low reaction force to protect vessels - Suitable for ship-to-ship and ship-to-dock berthing | Tankers, cargo ships, offshore mooring | View Product |
| Foam-Filled Fender | - Non-floating, maintenance-free - Closed-cell foam core with durable polyurethane skin - Resistant to wear, UV, and saltwater | Docks, terminals, marinas | View Product |
| Donut Fender | - 360° protection around mooring posts - Adapts to tidal changes and waves - Ideal for docks and piers | Pile protection, pontoons | View Product |
| Hydro-Pneumatic Fender | - Provides consistent vertical alignment - High-load capacity for submarines and special vessels - Durable in extreme marine environments | Submarines, offshore platforms | View Product |
Durable Materials: High-quality rubber and polyurethane ensure longevity and superior resistance to environmental conditions.
Reliable Performance: Engineered for maximum energy absorption and minimal reaction force.
Custom Solutions: Sizes, shapes, and mounting options can be tailored to meet your vessel’s requirements.
Global Applications: Widely used for ships, yachts, ports, and offshore facilities.
| Feature | Pneumatic Fender | Foam Fender | Donut Fender | Hydro-Pneumatic Fender |
|---|---|---|---|---|
| Energy Absorption | ★★★★★ | ★★★★☆ | ★★★☆☆ | ★★★★☆ |
| Maintenance | Moderate (air pressure check) | Minimal | Low | Moderate |
| Installation | Floating / chain type | Fixed | Around pile | Vertical / submerged |
| Cost | Medium | Medium | Low | High |
| Lifespan | 10–15 years | 12–15 years | 10+ years | 12+ years |
| Best For | Large vessels, tankers | Marinas, docks | Small boats, pontoons | Submarines, offshore rigs |
✅ Expert Tip: For large ships or oil tankers, choose pneumatic or hydro-pneumatic types. For low-maintenance docks, use foam fenders. For pile or pontoon applications, donut fenders are the best.
Determine Vessel Size & Weight – Larger ships need higher energy absorption capacity.
Assess Dock Type & Tidal Range – Select floating or fixed fenders accordingly.
Evaluate Maintenance Needs – Foam fenders are nearly maintenance-free.
Consider Environment Conditions – Saltwater, UV, and wave exposure levels affect lifespan.
Consult Our Engineering Team – We provide 3D modeling and mooring simulations for best fit.
Need professional selection support? Contact our engineers for a free fender consultation.
| Concern | Our Solution |
|---|---|
| Will the fender deflate or leak air? | Pneumatic models use heavy-duty valves and reinforced cords for long-term sealing. |
| How do I install it on my dock? | We provide full installation kits and chain/rope net options. |
| What if I need custom dimensions? | All fenders are fully customizable to your drawings or specifications. |
| How long will it last in saltwater? | Designed for >10-year life in marine conditions with UV and corrosion-resistant materials. |
A1: Consider your boat size, docking environment, and impact energy requirements. Our experts can help you select the ideal fender type. A general guideline is to use one fender for every 10 feet of boat length, with a minimum of three fenders per side for boats under 40 feet. For example, a 20-foot boat should have at least three fenders, and a 40-foot boat should have at least four. Ensure that fenders are placed at the widest part of the hull to provide optimal protection during docking.
A2: Yes. Our fenders are designed with premium materials resistant to UV, saltwater, and extreme temperatures.
A3: Absolutely. We provide tailored solutions in size, type, and mounting options to suit your specific marine application.
A4: With proper installation and maintenance, our fenders can last many years while maintaining optimal performance.
Common types include:
Pneumatic Fenders: Air-filled and suitable for ship-to-ship and ship-to-dock operations.
Foam-Filled Fenders: Solid and maintenance-free, ideal for long-term use.
Donut Fenders: Provide 360° protection around mooring posts.
Hydro-Pneumatic Fenders: Designed for submarines and vessels with low freeboards.
At a minimum, a boat should have three appropriately sized fenders, with a good rule of thumb being one fender for every 10 feet of waterline. For example, a 20-foot boat would need three fenders, and a 40-foot boat would need four. In rough conditions or when rafting, additional fenders are recommended.
Fenders should be placed at the widest part of the hull, as this area is most likely to come into contact with docks or other vessels. When rafting, position fenders at the maximum beam and distribute additional fenders fore and aft as needed. For boats under 40 feet, a minimum of three fenders per side is recommended.
Regularly inspect fenders for signs of wear, punctures, or air leaks. Clean them with fresh water after each use to remove salt and debris. For inflatable fenders, check the air pressure and ensure that valves are functioning correctly. Proper maintenance extends the lifespan of your fenders and ensures reliable protection.
Protect your dock and vessel with durable, proven Hongruntong Marine Fenders.
Contact our engineering team for custom designs, quotations, or installation guides.
