D Rubber Fender Strong Compression Strength Long Lasting Elasticity Reliable Dock Protection

Description

The D Type Fender is a heavy-duty rubber protection system designed to absorb high energy impacts during vessel-to-vessel and vessel-to-dock contact. Its signature “D” shape combines a flat mounting base with a semi-circular compression surface, providing excellent energy absorption with minimal hull pressure. Manufactured from high-performance marine rubber, this fender demonstrates superior resistance to impact fatigue, ozone, seawater corrosion, and mechanical wear.

For tugboats and offshore support vessels, D Type Fenders are critical components that safeguard hulls during pushing, towing, or mooring operations. Hongruntong Marine’s advanced compounding and extrusion technology ensures uniform rubber density, exceptional tensile strength, and excellent resilience under dynamic loading.

Case Study – Offshore Supply Fleet, Singapore

An offshore logistics company in Singapore reported excessive hull damage on its supply vessels due to constant berthing and side-pushing during cargo transfers. The existing flat fenders deformed unevenly and failed prematurely under continuous impact. Hongruntong Marine supplied a customized Heavy-Duty D Type Fender with reinforced internal structure and synthetic rubber compound designed to operate in tropical marine conditions.

After 24 months of service, no structural cracks or performance loss were recorded. Inspection data indicated a 42% improvement in compression recovery, 35% reduction in hull paint damage, and zero unscheduled replacements compared to the previous setup. The client standardized Hongruntong’s D Type Fender design across its entire fleet, citing superior resilience, simplified mounting, and reduced maintenance costs.

Specifications

Features

Reinforced Compression Strength
Engineered with optimized rubber compounds and thick wall geometry, the D Type Fender withstands heavy lateral pressure from tugs and support vessels. The internal hollow design balances flexibility and rigidity, ensuring consistent energy absorption even under repeated high-load cycles.

Superior Fatigue and Tear Resistance
The rubber formulation includes reinforcing fillers that enhance resistance to tearing and permanent deformation. The fender retains its original shape and elasticity even after prolonged exposure to tidal movements and vessel impacts.

Customizable Lengths and Profiles
Hongruntong Marine offers a wide range of D Fender profiles and sizes (D100–D800) to match hull curvature or dock dimensions. Continuous extrusion options allow long-length installation with minimal joint gaps, improving structural integrity.

Ease of Installation and Replacement
The fender’s flat back surface simplifies bolting or welding to vessel sides or quay walls. Modular segments can be replaced individually, minimizing downtime during maintenance or retrofit.

Applications

Tugboats and Push Boats
Installed along bow and sides to absorb repeated impact during berthing, pushing, and towing.

Offshore Supply and Support Vessels
Provides reliable hull protection during supply transfers and side contact with rigs or barges.

Cargo Barges and Workboats
Ensures smooth berthing and prevents structural stress in frequent loading operations.

Why Choose Hongruntong Marine

Marine Grade Rubber Compounding Expertise
Each fender uses a specialized blend of natural and synthetic rubbers formulated for maximum tensile and tear strength. Laboratory testing ensures stable hardness, impact elasticity, and deformation recovery.

Precision Extrusion and Curing Process
Hongruntong utilizes advanced continuous extrusion and high-pressure curing to achieve uniform wall thickness, ensuring even deflection behavior and reliable energy absorption.

Proven Offshore Application Record
Our D Type Fenders are in service on offshore fleets in Southeast Asia, the Middle East, and Europe. Customers report extended service life and lower maintenance costs compared to conventional products.

Comprehensive After-Sales Support
From design consultation to mounting guidance and lifecycle monitoring, Hongruntong provides complete technical support. Clients receive detailed drawings, inspection reports, and performance documentation.

FAQ

1. Can D Type Fenders be installed on curved hull surfaces?
Yes, the flexible structure and customized profiles allow mounting on both flat and curved vessel surfaces.

2. What materials are used in the fender?
A blend of high-grade natural and synthetic rubber ensures excellent impact resistance and long-term elasticity.

3. How are the fenders attached to tugboats?
Common methods include bolting, U-channel steel inserts, or welded mounting brackets, depending on hull design.

4. Do they require regular maintenance?
Only periodic inspection and cleaning. The material resists oil, salt, and UV, minimizing upkeep.

5. Can Hongruntong customize colors or dimensions?
Yes, lengths, diameters, and colors can be customized according to vessel or dock requirements.

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.