Top 10 Rubber Fenders Commonly Used In Docks

Rubber fenders are very useful. They provide excellent protection to vessels. Have you ever noticed a ship colliding with a dock during docking? The rubber fenders absorb the impact of the collision. Without those, collisions would damage vessels.

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Even during ship-to-ship docking, rubber fenders save both ships from big collisions. However, different types of rubber are used, and they all vary in performance. This guide will discuss the top 10 rubber fenders commonly used in docks. So, let’s get started!

Overview of Rubber Fenders

Rubber fenders act as a cushion to absorb kinetic energy. Ships are usually big in size and weight. When they berth, the boat collides with the docking structure. The fenders absorb the impact of this collision, saving the ship from potential damage.

Rubber fenders are among the most critical components of ship docking. Synthetic rubber is usually used to make them. It is flexible, strong, and durable. As I said, there are different types, each using a different kind of rubber.

They are made to compress when colliding with the dock. They absorb the shock or impact produced by the collision. The capacity of compression and absorption also varies from fender to fender.

Top 10 Rubber Fenders Commonly Used In Docks

All the rubber fenders absorb the shocks. However, their shock absorption capacity varies from one type to another. There are multiple varieties of fenders used by the ships. Here is the list of the top 10 rubber fenders:

• Cylindrical Rubber Fenders
• Cell Rubber Fenders
• Super Cone Rubber Fenders
• V-shaped (Arch) Fender
• D-Type Rubber Fenders
• DO Type Rubber Fenders
• Pneumatic Rubber Fenders
• Rotating or Roller Fenders
• Tug Boat Fenders
• W-Type Rubber Fenders

All these differ from each other in many ways. However, their primary functionality is the same: protecting the vessel. I will introduce these different rubber fenders in the section below.

1- Cylindrical Rubber Fenders

Cylindrical fenders are standard and one of the most used types. They are very affordable and offer optimal longevity. Their maintenance cost is also low. As the name suggests, they look like cylinders. Regarding installation, they require no hard work or specialized techniques for setup.

Cylindrical rubber fenders are usually suspended on the hull and hang around the ship. Their height can be altered or adjusted according to the ship’s requirements. They can be used with vessels of any size or shape. This is due to their versatility.

Let’s discuss their power and capacity. They are reasonably strong and can easily absorb small to mid-range impacts. These fenders are cheap. So, many ship owners customize them to fit their needs. Their cost-effectiveness and ease of usability are their key features.

2- Cell Rubber Fenders

The rubber cell fenders have many hollow chambers. The chambers or cells connect across the ship’s length. The cells are compressible, so they absorb the impact during its compression. They are ideal for big vessel berthing as they absorb high impacts.

In some conditions, ships dock with relatively higher velocity. Even in the tidal variation, the ship’s speed can be slightly higher. In such situations, cell fenders come in handy. When ships collide with the dock, these cells absorb the impact force effectively. What makes these fenders popular is their low reaction force.

Due to their higher impact absorption capacity, they are also more expensive. People with smaller ships don’t prefer them due to the high cost. Their initial setup is also complex. However, professional ships that operate on a larger scale use these supercell fenders. Thanks to their higher energy absorption capability.

3- Super Cone Rubber Fenders

The cone rubber fenders have a conical shape. They have a rubber body and steel frame at the front. The steel frame makes these fenders solid and durable. Not only this but its rubber body and steel frame also improve deformation.

Experts say these fenders improve the deformation from 52% to 70%. This deformation does not add any additional reaction force. What makes these fenders prominent is their excellent impact absorption. Their shock absorption capacity is double that of the other types. Both small and large vessels use them, all thanks to their power and low reaction force.

4- V-shaped (Arch) Fender

These V-type fenders are very simple by design. Their compact and user-friendly design facilitates easy installation. They have a V or arch shape. Their absorption of extreme impacts could be better. The simple design is the culprit behind lagging absorption capacity.

For low to mid-range impact, this fender works fine. Their performance goes down when the vessel approaches the dock at high speed. The reason is that they don’t adjust or accommodate different angles. You never know which part of the vessel will collide with the dock when it is at high speed.

These arch fenders are matchless in durability. They will easily stay with you for many years. Keep in mind that they also require regular maintenance. Better durability does not mean they are not prone to wear and tear. With proper maintenance, they will be with you for years to come.

5- D-Type Rubber Fenders

D-type fenders are getting more and more famous day by day. The reason is that they are affordable and durable. Due to lower costs, they are the go-to option for small boat owners. All these fenders are made with marine-grade flexible PVC.

This material is solid and durable. So, using it for fenders enhances strength, durability, and longevity. One disadvantage, however, is that they don’t have a high energy absorption capacity. Due to this, these rubber fenders are not recommended for use with bigger ships or vessels.

Like other types, D-type fenders are versatile and easy to install. Many modern D-type fenders come with pre-drilled mounting holes. Those holes enhance their ease of installation and usability.

6- DO Type Rubber Fenders

It is a subtype of D-type rubber fenders. However, it has better energy absorption capacity. As said above, the D-types are usually used in smaller boats and ships. But that is not the case with these DO-type fenders. Thanks to their high energy absorption.

Many ships use these to protect their ships’ stern and bow. Along with high energy absorption capabilities, they also don’t produce high reaction force. Its presence in the market gives ship owners the choice. Small boat owners use D-type, and big vessel owners use DO types.

Quick Information: Their shape and design are similar to D-types. As the name suggests, they are identical to the alphabet D, which has a D-shaped cross-section.

7- Pneumatic Rubber Fenders

Pneumatic Rubber Fenders, also known as air fenders, are very common. They are usually used in ship-to-ship mooring. They consist of a hollow structure and rubber layers around it. High-pressure air is filled in the hollow structure, helping these fenders absorb shocks.

It is important to note that these fenders are very easy to use and install. They are inflated with air. If you want to relocate them, remove the air and relocate them. They are relatively simple and don’t need complex techniques. 

Different sizes of pneumatic rubber fenders are available. Those include diameters ranging from 400 mm to mm and lengths ranging from 500 mm to 9,000 mm. However, many manufacturers also make custom-size rubber fenders. You can order the size that you need for your ship or boat.

8- Rotating or Roller Fenders

Rotation fenders are also known as roller fenders. They use a rotating rubber roller to control and absorb the impact. This roller is solid and works effectively to control the ship’s speed. As you know, a controlled speed or movement of a boat is necessary for safe docking.

This fender type is usually used in shipyards, docks, and ro-ro wharves. It also provides optimal energy absorption capacity. However, these fenders are rare. The reason is that they are costly. Not only this but their installation and disassembly are also complex. People still use them due to their low reaction force and high energy absorption.

9- Tug Boat Fenders

They are also known as corner fenders. Their usability is common when pushing and racking of tugboats is required. Generally, they are applied at the bow or stern. The good thing is that they don’t affect the ship’s maneuverability. The captain doesn’t get any disturbance in his views.

Their energy absorption is optimal. However, they are not designed for larger ships or vessels. The installation of these fenders is a bit tricky. The reason is that they are made to stick firmly to the sides of tugboats. So it keeps them from slipping off while towing other ships.

10- W-Type Rubber Fenders

As the name suggests, these fenders have a W-shaped design. Some people also call them an M-shaped fender. They are well known for their excellent energy absorption and stability. Even when a big vessel collides with the dock, W-type fenders effectively absorb the impact.

Due to this stability, it can easily handle wharves above 10,000 tons. As the stress is evenly distributed on the fenders, they also quickly reduce the piling effect. W-shaped fenders work well for different docking situations. However, they’re great when you need extra protection for a boat’s front and back.

Things to Consider Before Choosing Rubber Fenders 

Many manufacturers produce top-notch rubber fenders. But their selection depends on you. Choosing the wrong fender is like putting your investment at risk. There are a few factors that must be checked before making a decision. In the section below, we will explore those essential factors:

• Durability and Lifespan: Fenders are expensive. So compromising on the build quality will give you regret. Therefore, you should choose rubber fenders that are both durable and strong. If any company sells those at a low price, you should understand that the product will be low quality.
• Vessel Size & Impact Energy: How big is your boat or ship? Knowing and understanding the size will help you buy the suitable one. Bigger-sized fenders are expensive. If you have a smaller vessel or boat, choose the smaller-sized fenders. In this way, you can save some bucks.
• Maintenance Needs: Wear & tear in the rubber fenders is common. Proper maintenance and regular checks ensure the longevity of those fenders. Before buying a fender, check how pricey it would be to maintain it. I prefer the rubber fender with a lower maintenance cost.
• Installation Requirements: Different rubber fenders have different installation processes. Some of them are very complex. Their installation requires a lot of time. I don’t recommend buying those, even if they are cheap. The simple, quick, and easy installation of fenders is preferred.
• Supplier Reputation: Manufacturing rubber fenders requires time and expertise. Therefore, you should be patient and wise when deciding on a supplier. Expect quality from the suppliers instead of quick turnaround. We also provide different types of rubber fenders. You can trust us and get the work done quickly.

Frequently Asked Questions

What are rubber fenders?

Rubber fenders are like cushions. They absorb kinetic energy during ship berthing and docking. This prevents damage to both the vessel and the berthing structure.

What are the types of rubber fenders?

There are several rubber fenders, including Pneumatic, cylindrical, cone, cell, and arch fenders. Each type is designed for specific berthing conditions and vessel requirements.

How long do rubber fenders last?

The lifespan of rubber fenders varies depending on various factors. Generally, well-maintained rubber fenders can last for 12 to 15 years.

Can rubber fenders be recycled?

Yes, rubber fenders can be recycled. Once used utterly, they can be processed again. This makes them usable in various applications and products.

Can rubber fenders be customized for specific applications or vessel requirements?

Yes, rubber fenders can be customized with some effort. You can customize their size, shape, material composition, and mounting configurations. This customization can enhance performance and efficiency in various maritime applications.

Conclusion

Rubber fenders are super helpful. They protect vessels and docking platforms. However, different types are available, each offering distinct performance and features. Therefore, it is crucial to analyze them carefully.

Remember that your ship’s size also impacts decision-making. Smaller boats require smaller, inexpensive fenders, and vice versa. If you need a rubber fender of any type, contact us. We, as Fender manufacturers, have 15 years of experience. You’ll get your work done with 100% satisfaction guaranteed.

As professionals in the maritime industry, you know how crucial marine protection solutions are. Ever thought about what makes these pneumatic fenders cost more? Is it just the size or material?

Experts like us know it’s more complex. It involves quality, size, and pressure needs. In this guide, we’ll dive into what affects the price. This will help you make better choices for your marine work.

Understanding Pneumatic Fenders and Their Importance

Pneumatic fenders are key for keeping marine vessels and places safe. They absorb energy well, with little pressure on the ship. This makes them a top pick for protecting ships.

Definition and Primary Functions

Pneumatic rubber fenders soak up a ship’s energy when docking. This protects both the ship and the docking spots. Their main job is to cushion the ship during docking.

Applications in Marine Industries

Pneumatic fenders are used in many marine areas. This includes big tankers, LPG ships, ocean platforms, and bulk carriers. They also protect major docks, harbors, and wharves. They prevent expensive hull damage during loading and unloading.

• Pneumatic rubber fenders protect large tankers and LPG vessels during docking.
• Ocean platforms and bulk carriers use floating pneumatic fenders for safety.
• Major ports and harbors worldwide use pneumatic fenders as key safety tools.

The Basic Construction of Pneumatic Fenders

Pneumatic fenders are built with important parts that work together for safety. They’re made to take in a ship’s energy, keeping both the ship and the docking area safe.

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Outer Rubber Layer

The outer rubber layer is tough against abrasion and punctures. It’s made from high-quality rubber to last in harsh sea conditions.

Synthetic Tire Cord Layer

The synthetic tire cord layer gives the fender strength and flexibility. It’s key to keeping the fender strong under different conditions.

Inner Rubber Layer

The inner rubber layer keeps air in, affecting the fender’s performance and price. It needs to seal well to avoid air leaks. High-quality rubber here helps with air tightness and handling pressure changes.

LayerMaterialFunctionOuter LayerHigh-quality rubberAbrasion and puncture resistanceSynthetic Tire Cord LayerSynthetic tire cordsStructural integrity and flexibilityInner LayerSpecialized rubber compoundsAir retention and sealing properties

Key Factors That Determine the Price of Pneumatic Fenders

Many things influence the cost of pneumatic fenders for marine use. Knowing these factors helps buyers make smart choices. They balance cost with how well and long the fenders last.

Material Quality and Composition

The materials used in making pneumatic fenders affect their price. High-quality rubber and strong reinforcements make them more expensive.

Size and Dimensions

The size of pneumatic fenders also matters. Bigger fenders need more materials and complex manufacturing, which raises their cost.

Manufacturing Standards

How fenders are made impacts their price. Following international standards like ISO : and getting certifications from CCS, DNV, GL, LR, and BV means better quality. This quality comes at a higher price.

• ISO-certified pneumatic rubber fenders cost more because of strict quality checks.
• Fenders that meet international standards need more testing and paperwork, which adds to the cost.
• Making high-standard fenders involves many quality checks, special equipment, and material tests. These steps increase the price.
• Top manufacturers use advanced methods and precise tools for quality. This requires a lot of money, which is reflected in the price.
• Cheaper fenders might skip some standards to save money. But, this can lead to poor performance and a shorter life. So, investing in well-made fenders is better in the long run, even if they cost more upfront.

Size Specifications and Their Impact on Cost

The size of pneumatic fenders used in the sea affects their price. Different sizes need different materials, making, and uses, which changes the cost.

Standard Size Ranges

Pneumatic fenders come in various sizes for different sea uses. Sizes range from small to large, depending on how much energy they can handle during docking.

Diameter (mm)Length (mm)

Custom Dimensions and Pricing Considerations

Custom-dimensioned pneumatic fenders are needed for certain jobs. They cost more because of the special tools needed and the less efficient production.

• Custom fenders are 15-30% pricier than standard sizes because of their unique needs.
• It’s important to think if the extra cost of custom fenders is worth it.
• Non-standard sizes might need more engineering work, which increases the cost.
• Custom fenders take 30-50% longer to make, which can be a hidden cost.
• Some makers can offer good prices on custom fenders by using their existing lines.

Internal Pressure Requirements and Price Variations

Internal pressure greatly affects pneumatic fender prices. It impacts their safety and how well they work. Fenders work best at certain pressures, which changes their cost.

50kPa vs 80kPa Pressure Options

Fenders can work at 50kPa or 80kPa. The choice affects their performance and price. Higher-pressure fenders might need more safety features.

Operating PressureSafety Valve Activation PressureImpact on Price50kPa175kPaBase Cost + 5-8%80kPa230kPaBase Cost + 5-8%

Safety Valve Requirements for Larger Fenders

Larger fenders have safety valves to prevent damage from too much pressure. These valves kick in at specific pressures, making the fenders safer and potentially saving money in the long run.

Adding safety valves to big fenders makes them more expensive upfront. But it makes them much safer. This is key for those in the maritime field who want to balance costs with reliability.

Energy Absorption Capabilities and Pricing

The cost of pneumatic rubber fenders depends on how well they absorb energy. They also need to keep the ship’s hull pressure steady. High-performance fenders are made to keep hull pressure between 122-148 kPa, no matter their size.

Hull Pressure (kPa)Energy AbsorptionReaction Force132HighMinimal126HighMinimal135HighMinimal122HighMinimal148HighMinimal

Relationship Between Energy Absorption and Cost

The ability of pneumatic rubber fenders to absorb energy affects their cost. Premium fenders, which absorb more energy and keep hull pressure steady, need advanced engineering. This makes them more expensive.

• Hull pressure ratings are key in setting the price of pneumatic rubber fenders.
• Premium fenders keep hull pressure steady across different sizes, needing advanced engineering.

Performance Metrics That Influence Price

Several performance metrics affect the price of pneumatic rubber fenders. These include how they react to force, how they bend, and how much energy they return. All these need special testing and engineering skills.

• The reaction force must be just right to protect both the vessel and the berthing structure.
• Advanced performance metrics need special testing equipment and engineering skills.
• Ship protection performance under different compression scenarios requires a lot of R&D.

Yokohama Type vs. Sling Type: Price Comparisons

The type of pneumatic fender also affects its price. Yokohama type and sling type pneumatic fenders do the same job but differ in structure and performance. Knowing these differences helps you choose the right one for your needs and budget.

Structural Differences

Yokohama type fenders are built stronger with a cylindrical body. Sling type fenders use chains or slings for securing.

Performance and Cost Variations

Yokohama type and sling type fenders have different performance levels. This affects their value and price. Key points to consider include:

• Yokohama type fenders have better abrasion resistance and last longer, making them 15-25% more expensive than sling type fenders.
• Yokohama type fenders often absorb more energy than sling type fenders, offering better value despite being more expensive upfront.
• Sling type fenders might be cheaper for temporary use or specific needs where their performance fits perfectly.
• When comparing prices, consider the total cost over time, including maintenance, service life, and reliability in your environment.

Hardware Components and Accessories

The success of pneumatic fenders relies on their hardware, like chains, shackles, and swivel joints. These ensure they’re installed and work correctly.

Chains, Shackles, and Swivel Joints

Standard galvanized chains, shackles, and swivel joints are key for securing pneumatic fenders. They must handle the harsh marine environment.

Additional Hardware and Its Cost Impact

Adding custom mounting brackets and reinforced points can raise the price by 10-20%. Using marine-grade materials and special coatings boosts costs. But, it also makes the product last longer.

Important points to think about are:

• Specialized mounting hardware can greatly increase the total cost.
• Custom brackets and connections offer big benefits in use.
• Marine-grade parts need to be resistant to corrosion.

Durability Factors That Justify Premium Pricing

The cost of pneumatic fenders is tied to their durability and performance. Their long life is key for maritime work, affecting their cost-effectiveness and reliability.

Abrasion Resistance

Pneumatic rubber fenders with high abrasion resistance can handle harsh marine environments. This means they need less frequent replacements. Their ability to last long is crucial for their integrity.

Weather and UV Resistance

Weather and UV radiation can harm pneumatic fenders. Premium products resist these effects, lasting longer.

Expected Lifespan and Return on Investment

The lifespan of pneumaticfenders affects their price. Premium fenders last 8-12 years, while economy ones last 3-5 years. Buyers should think about the total cost, including installation, downtime, and disposal.

• Factors like reinforcement, material quality, and precision in manufacturing increase costs.
• Premium fenders are more cost-effective over time due to fewer frequent replacements.

Maintenance Requirements and Long-term Cost Considerations

The long-term value of pneumatic fenders depends on maintenance and repair costs. Low maintenance is key for their cost-effectiveness.

Routine Maintenance Procedures

Regular checks and maintenance extend pneumatic fender lifespan. This includes wear checks, inflation, and cleaning. These steps prevent small issues from becoming big problems.

Repair Costs vs. Replacement Expenses

Repairability of pneumatic rubber fenders affects their cost over time. Premium fenders are easier to repair, potentially adding 2-3 years to their life. While they cost more upfront, the savings over time are significant.

• Repairability improves their value and lifespan.
• Premium fenders are made for easy repairs, cutting down on downtime and costs.
• When damaged, high-quality fenders retain value, with parts available for reuse or recycling.
• Manufacturers offering repair services and support can charge more while saving on costs over time.

By considering these factors, we can make informed decisions about pneumatic fender investments. This balances initial costs with long-term value.

Volume Purchasing and Wholesale Pricing Benefits

Buying lots of pneumatic fenders can save a lot of money. Ports and shipping companies always need these fenders.

Bulk Order Discounts

Buying in bulk gets you big discounts on pneumatic rubber fenders. These discounts can cut down the cost a lot.

Long-term Supply Agreements

Long-term deals for pneumatic rubber fenders can save 10-25% compared to buying on the spot. These deals offer fixed or formula-based prices. This protects buyers from price swings.

• Long-term deals are great for companies that always need these fenders.
• These deals help buyers plan their budgets better, even when raw material prices change.
• Manufacturers get to plan their production better and save on sales costs. This lets them offer better prices in these deals.
• Good deals include updates, reviews, and ways to keep improving. These add value beyond just the price.
• When looking at long-term deals, talk to several pneumatic fender manufacturers. This helps you find the best price before you negotiate the details.

Customization Options and Their Price Implications

Customizing pneumatic fenders affects their price. Different needs require different solutions.

Special Requirements for Unique Applications

Custom pneumatic fenders can be made for specific needs. This includes different sizes and pressure levels.

Branding and Color Customization

Branding and color changes for rubber fenders add 3-8% to the price. But they offer great benefits for identification and corporate identity.

• Custom colors need special pigments and extra quality checks. This ensures they last and look good.
• Adding a company logo adds complexity. This affects the final price.
• For big companies, the extra cost of custom fenders is worth it.
• Talk to manufacturers early to understand the pricing and what you need to buy.

Zhonghaihang Shipping Supply’s Competitive Pricing Advantage

Choosing Zhonghaihang Shipping Supply means you get great prices on pneumatic fenders. We offer quality without breaking the bank. Our prices are competitive because of our efficient processes, professional service, and quick delivery.

Quality Manufacturing Processes

We make our pneumatic fenders with high quality. This meets international standards and keeps costs down. We provide reliable products for ship protection and mooring.

Professional Customer Service

Our customer service team is ready to help. We answer questions, provide technical support, and make sure you’re happy. We always put our customers first.

Fast Delivery Times

We have a big stock of floating pneumatic fenders and fast logistics. This means we can deliver quickly, cutting down on delays and costs. Our global network helps us send goods to ports all over the world at good prices.

• Zhonghaihang Shipping Supply keeps a big stock of floating pneumatic fenders. This means we can deliver fast, cutting down on delays and costs.
• Our team works hard to make sure even custom orders are made and shipped quickly.
• For urgent needs, we have fast delivery options. These balance speed with cost.
• Our global network lets us send goods to ports worldwide at good prices.
• If you have a tight deadline, contact our sales team. We can talk about fast manufacturing and delivery for our marine protection products.

Conclusion

Understanding pneumatic fender prices is key. At Zhonghaihang Shipping Supply, we say the price is just part of the story. You also need to think about quality, performance, and how long they last.

The cost of owning a pneumatic fender goes beyond the initial price. Things like upkeep, lifespan, and how well they work are important. For important jobs, spending more on quality can pay off in the long run.

We offer clear prices that show real value. Our rates are competitive without sacrificing quality. Talk to our technical team about your needs. See how our marine protection solutions can add value to your operation.

FAQ

What is the typical lifespan of a pneumatic rubber fender?

A pneumatic rubber fender’s life depends on how it’s used, maintained, and the environment. They usually last 8 to 12 years.

How do I determine the correct size of a pneumatic fender for my vessel?

Think about your vessel’s size, how fast it docks, and the water conditions. Our experts can help pick the right size for you.

What is the difference between Yokohama type and Sling type pneumatic fenders?

Yokohama type fenders have more layers, while Sling type fenders are simpler. The choice depends on your needs and what you want from the fender.

Can pneumatic fenders be customized to meet specific requirements?

Yes, we can customize them. This includes special sizes, colors, and even branding to fit your needs.

What are the key factors that affect the price of pneumatic fenders?

Things like the material, size, standards, and pressure all affect the price. These are important to consider.

What maintenance is required for pneumatic fenders?

They need regular checks, cleaning, and oiling to keep them working well and lasting long.