Port Fenders Robust Design High Energy Dissipation Superior Weather Resistance

Port Fenders Robust Design High Energy Dissipation Superior Weather Resistance

Description

The Cylindrical Marine Fender remains one of the most trusted and widely applied fender types in the maritime industry due to its simple structure, excellent performance, and flexible mounting options. Designed for high energy absorption and low reaction force, this fender effectively minimizes damage during berthing operations for a wide variety of vessels.

Hongruntong’s Cylindrical Fenders are produced from top-grade natural and synthetic rubber blends through advanced extrusion and continuous vulcanization. Each fender undergoes strict dimensional and hardness testing to ensure stable compression response and long-term performance in both cold and tropical marine environments. The result is a durable, cost-efficient solution for shipyards, offshore terminals, and heavy-duty berths.

Unlike flat-type fenders, cylindrical fenders deform uniformly along their length, creating a gentle contact area that reduces pressure on the ship hull. Their rounded design allows for smooth rolling motion during contact, making them ideal for berths that accommodate vessels of varying freeboard levels.

Case Study – Zhoushan Shipyard, China

In 2022, a major shipyard in Zhoushan carried out a drydock upgrade project to accommodate a new series of 50,000 DWT bulk carriers. The existing square panel fenders could not handle repeated berthing impacts during repair and launching cycles, causing hull scratches and requiring frequent replacement.

Hongruntong Marine was contracted to design and supply a custom cylindrical fender system for the shipyard’s refit docks. The selected fenders (Ø1200 × 4000 mm) were made with enhanced wear-resistant rubber compounds and fitted with galvanized mounting chains for vertical suspension. The installation was completed within two weeks with minimal structural modification.

After six months of operation, the shipyard reported a 55% reduction in hull contact damage and a significant decrease in maintenance costs. The flexible fender design allowed smooth hull alignment during launching operations, improving safety and efficiency.

This project demonstrated how Hongruntong’s engineering expertise and customized fender systems can optimize shipyard productivity and reduce operational risks while maintaining long-term reliability.

Specifications

Features

High Resilience Rubber Structure
Hongruntong’s Cylindrical Fenders are made from a balanced composition of natural and synthetic rubbers, ensuring superior tensile strength, elongation, and tear resistance. The vulcanized surface layer protects against seawater, UV, and ozone degradation, ensuring performance stability over years of continuous use.

Adaptable Design and Mounting Options
These fenders can be installed horizontally or vertically depending on berth requirements. Chain-suspended systems allow for rolling motion during vessel contact, reducing shear stress. The modular design also enables easy replacement or extension, providing flexibility in both permanent and temporary installations.

Outstanding Energy Absorption with Minimal Hull Stress
The circular profile distributes load evenly and deforms predictably under pressure, providing controlled energy absorption and reducing localized hull damage. This makes them particularly suitable for shipyards where multiple vessel types frequently berth at the same dock.

Cost Efficient Operation and Longevity
With their simple structure and high durability, Cylindrical Fenders require little maintenance over their service life. The absence of metal inserts eliminates corrosion risk, while the homogeneous rubber body ensures uniform performance even after thousands of impact cycles.

Applications

Shipyards and Repair Docks
Ideal for protecting vessels during maintenance, retrofitting, and launching operations.

Bulk Carrier and Ro Ro Berths
Provides consistent energy absorption for high-berthing-frequency environments.

Floating and Temporary Berthing Facilities
Lightweight, easily suspended, and quickly installed for multipurpose docking areas.

Why Choose Hongruntong Marine

Precision Engineering and Material Control
All fenders are produced in ISO-certified facilities using automated extrusion systems. Each batch of rubber compound is tested for hardness, tensile strength, and aging resistance to ensure consistent mechanical properties.

Tailor-Made Fender Solutions
Our design team collaborates closely with shipyards and port engineers to tailor fender dimensions, mounting structures, and hardware configurations. Hongruntong’s customization ensures optimal performance even in non-standard berth designs or retrofitted facilities.

Strong Global Supply and Fast Delivery
With production bases in Northern China and partnerships across Asia and Europe, we maintain a large stock of standard fender sizes and accessories. Efficient logistics enable on-time delivery for urgent marine projects worldwide.

Professional After-Sales and Inspection Support
Hongruntong provides complete lifecycle service—from technical drawing to installation supervision and post-delivery inspection. Clients receive continuous support to maintain fender performance and compliance with safety standards.

FAQ

1. What is the main difference between cylindrical and arch-type fenders?
Cylindrical fenders provide more uniform pressure distribution and are easier to install in multiple orientations.

2. Can the fenders be used in cold-weather ports?
Yes, the rubber compounds maintain elasticity and performance in temperatures as low as -40°C.

3. What maintenance is recommended?
Periodic cleaning and chain inspection are sufficient. Rubber surfaces should be kept free from sharp debris.

4. Is customization available for color or mounting system?
Yes, both black and colored fenders are available, and mounting accessories can be fully customized.

5. How long is the typical service life?
With normal use and inspection, Hongruntong Cylindrical Fenders typically last 10–15 years.

HONGRUNTONG MARINE

Welcome to Hongruntong Marine, your trusted source for professional rubber fender solutions. With expertise in manufacturing high-quality marine fenders, we are committed to providing reliable protection for your vessels during berthing operations. Our dedication to excellence ensures that our fenders are durable, resilient, and tailored to meet the specific requirements of your maritime needs. We take pride in our innovative approach, continuously improving our products to guarantee customer satisfaction.

Choose Hongruntong Marine as your partner for top-notch rubber fenders and experience the difference in safety, performance, and peace of mind. Trust us to deliver exceptional quality and service for all your marine protection needs.

So Why Choose HONGRUNTONG Group?
One simple reason… A trustworthy brand!

At Hongruntong Marine, you’ll instantly notice our confident and enthusiastic attitude to a fender challenge. We work hard to keep things as simple and straightforward as possible. Even though your requirements may be varied, complex and challenging, we think you’ll quickly recognize the importance we put on creative thinking and our ability to problem solve: And that excellence in design doesn’t have to come at an unaffordable price.

You can be confident in the many decades’ experience of our technical team and our refined expertise but reassured by our modest approach. We know the importance of listening and respecting our customers’ input. You won’t find us telling you that there is only one way to solve the problem and we’re always willing to take a new perspective to find you the most elegant solution.

We’re pleased of our broadminded, enlightened attitude and understand the frustration that lack of choice and imaginative thinking can stifle a project. Whether it is a challenge of system performance or budget, our innovation in design or supply of fender systems only comes through persistence and tenacity.

We don’t believe you should accept the status-quo and we know that you’ll be invigorated and satisfied by our inspired and enthusiastic approach. So if you want to experience what it feels to have a fender solution from us, why not give our team a call to discuss your particular requirement.

Our Vision

A global leader in brands and technologies – Our vision gives us a sense of direction and destination. It captures our aspiration of being the best in everything we do. It is the basis for what we all stand for as one company. Our vision and our values guide the choices and decisions our employees make every day.

Values

We put our customers at the center of what we do.

We value, challenge and reward our people.

We drive excellent sustainable financial performance.

We are committed to leadership in sustainability.

Strategy

Our strategy is built on the foundation of our corporate values and will drive our successful development in the coming years in order to achieve our long-term vision for Hongruntong Marine: to become a global leader in brands and technologies.

In order to steer the focus of the entire organization toward our strategy and ensure its successful implementation, we have defined four strategic priorities: Outperform – Globalize – Simplify – Inspire.

The basis for our strategy was a detailed analysis of major long-term market trends. We identified three megatrends, which will affect our different businesses over the next years: consolidation, emerging markets and speed.

• Consolidation in our supplier, manufacturer and customer base as well as in our competitive environment will continue. Size will become a critical success factor in the future. Consequently, we need to grow our businesses.
• We expect the shift of growth from mature to emerging markets to continue. As a result, we need to expand our already strong footprint in these markets over the coming years.
• We anticipate highly dynamic market evolution, and faster decision-making by suppliers, customers and competitors. In addition, further digitalization will lead to changes in our market environment. We therefore need to continue simplifying our processes and increasing our operational excellence.

Financial targets 2023

We have defined ambitious financial targets for our company. By 2023, Hongruntong Marine aims to grow sales to 600 million dollars, of which 300 million dollars will come from emerging markets. For adjusted earnings per preferred share (EPS), Hongruntong Marine targets a compound annual growth rate (CAGR) of 10 percent between now and 2023. These financial targets are based on organic growth, including continuous portfolio optimization, that is, small and mid-sized acquisitions as well as divestment or discontinuation of nonstrategic activities. Potential major acquisitions or divestments are not built into our financial targets.