by Sunhelmmarine
When two large ships come side by side to transfer oil, gas, or cargo, safety becomes everything. In this kind of ship-to-ship (STS) operation, even a small collision can lead to big damage. That’s why reliable fenders are so important. Many ship owners already know about Yokohama pneumatic rubber fenders — strong, air-filled cushions that protect both vessels from impact.
At Sunhelmmarine, we take this trusted design and make it even better. Our upgraded Yokohama type fenders are built to last longer, resist wear, and perform perfectly in rough sea conditions.
Why Yokohama Type Pneumatic Fenders Work Best for STS
During STS operations, ships move constantly because of waves, wind, and currents. The distance between two hulls changes every second. In this situation, a soft but powerful buffer is needed. Pneumatic fenders are perfect for this job.
They are filled with air, so they can absorb strong impact energy and return to shape quickly. Unlike solid rubber or foam fenders, pneumatic ones can float and move with the waves. This flexibility helps reduce pressure on both ship hulls and keeps the operation safe and stable.
That’s why the Yokohama type pneumatic fender has become the global standard for STS transfers, oil terminals, and large ship berthing.
Why Choose Sunhelmmarine Pneumatic Rubber Fenders
You already know the Yokohama standard. Now it’s time to see how Sunhelmmarine improves it.
We use new-generation rubber compounds that greatly increase wear resistance and service life. Our fenders can handle rough sea environments and constant contact without cracking or aging. Each unit is made with integral winding technology, which ensures a uniform thickness and high burst strength.
Before shipping, every fender goes through strict testing — including pressure, energy absorption, and aging tests — to make sure it meets international standards like ISO and PIANC.
We also offer customized sizes and pressure levels to match your vessel type and operation style. Whether you need fenders for a VLCC, chemical tanker, or a small STS support vessel, we can design one that fits your needs perfectly.
And most importantly, our production and service teams have supported projects in over 70 countries. This global experience gives us deep understanding of local operating conditions — from hot tropical climates to freezing Arctic waters.
Technical Overview
| Fender Type | Diameter (mm) | Length (mm) | Internal Pressure (kPa) | Energy Absorption (kJ) | Suitable For |
|---|---|---|---|---|---|
| 1000×1500 | 1000 | 1500 | 50 | 49 | Small ships, coastal STS |
| 1700×3000 | 1700 | 3000 | 80 | 320 | Medium tankers |
| 2500×4000 | 2500 | 4000 | 80 | 870 | Large tankers, oil STS |
| 3300×6500 | 3300 | 6500 | 80 | 3200 | VLCC, offshore operations |
Our pneumatic fenders are available with or without chain and tire nets. All metal fittings are galvanized or stainless steel for corrosion resistance.
Easy Installation and Daily Care
Installing Yokohama type fenders is simple and quick. You only need to fix the fender at the correct height using ropes or chains and then inflate it to the recommended pressure.
Before each operation, always check:
- Air pressure inside the fender
- Valve and nozzle condition
- Surface wear or cracks
- Chain net and tire cover status (if equipped)
Clean the surface regularly and avoid sharp contact with metal edges. With basic maintenance, Sunhelmmarine pneumatic fenders can work safely for 10 years or more.
Safe and Efficient STS Operations
STS transfers involve moving products between two ships while both are afloat. Even small mistakes can cause costly damage or pollution. A high-quality fender helps absorb energy and keeps both ships stable during loading or unloading.
Sunhelmmarine supports ship owners and STS operators with risk evaluation, fender selection, and on-site assistance. We help you choose the right size and quantity for your ship pair, sea condition, and cargo type.
With our reliable pneumatic rubber fenders, you can reduce downtime, save maintenance costs, and protect your crew and assets.
What Our Clients Say
“Sunhelmmarine fenders perform better than our old ones. We used them in rough sea STS operations, and they handled the pressure perfectly.” — STS Operator, Singapore
“The material feels thicker and stronger. After two years of use, still in great condition.” — Fleet Engineer, Greece
“Quick response and fast delivery. Very professional team.” — Ship Owner, UAE
FAQ
1. Why are pneumatic rubber fenders ideal for STS?
Because they absorb high impact energy and adapt to wave movements, keeping ships safe during side-by-side operations.
2. Can I replace my old Yokohama fenders with Sunhelmmarine ones?
Yes. Our products are fully compatible and offer better durability at a more competitive price.
3. How long do they last?
With normal care, they can last 8–12 years depending on usage frequency and sea conditions.
4. Can I order custom sizes or pressure ratings?
Of course. We design and manufacture fenders to match your ship size and operation type.
5. What happens if a fender leaks?
We provide repair kits, replacement valves, and remote support to help you fix it quickly.
Contact Sunhelmmarine Today
If you are planning an STS operation or looking for a reliable supplier of Yokohama type pneumatic fenders, Sunhelmmarine is your trusted partner.
We provide:
- Quick technical support
- Global shipping
- Custom-made solutions for all vessel types
Contact us today to get a quotation or a free technical evaluation for your next project.