Dock Fender Easy Installation Corrosion Resistant Stable Protection
Description
The Pneumatic Rubber Fender is a compressed-air energy absorption system engineered to protect marine vessels and structures during berthing and mooring operations. By utilizing internal air as the energy-dissipating medium, the fender delivers consistent and gentle cushioning, reducing impact loads between contacting surfaces. The design ensures uniform stress distribution, resilience, and resistance to fatigue, even under repeated compression cycles.
Hongruntong Marine’s pneumatic fenders are constructed with a rubber outer layer reinforced by several layers of high-tensile synthetic tire-cord fabric. This configuration ensures stability under high internal pressure, while the fender’s flexible structure adapts to dynamic sea movements.
Case Study – Offshore Oil Terminal, Brazil
In 2024, a Brazilian offshore oil company selected Hongruntong 1000 × 2000 mm, 80 kPa fenders for a new single-point mooring (SPM) system located 25 km offshore. The challenge was to provide a lightweight yet high-performance fender that could accommodate constant movement caused by waves and current.
Hongruntong engineers conducted a dynamic simulation to model the contact behavior between the tanker and the mooring buoy. The analysis guided the selection of 80 kPa internal pressure to achieve optimal deformation. Field results showed the fenders absorbed up to 180 kN·m of energy with reaction forces under 700 kN, exceeding ISO17357-1 requirements. After 10 months of continuous use, pressure loss remained below 2%.
The project demonstrated the reliability of Hongruntong’s pneumatic fenders in harsh offshore environments. The client praised their stability, fast installation, and long-term cost efficiency, resulting in repeat orders for other deepwater terminals.
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Place of Origin
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China
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Brand Name
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Pneumatic Rubber Fender
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Material
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Natural Rubber
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Color
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Black
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Application
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In Ports with Extreme Tidal Variations
Ship-to-Ship Lightering Operations
Oil Gas (Typically Fsru)
Temporary Berthing
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Feature
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Heat Resistance
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Sample
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Usually Free
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Production Method
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Moulding
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Temperature
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-40℃~300℃
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Packing
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Pallets
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Lead time
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7-14 days
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Diameter x Length
[mm]
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50kPa
Performance Data
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80kPa
Performance Data
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Hull Pressure
at GEA
/ kN / m2
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Reaction Force
/ kN
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Energy Absorption
/ kNm
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Hull Pressure
at GEA
/ kN / m2
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Reaction Force
/ kN
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Energy Absorption
/ kNm
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1000 x 1500
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122
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182
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32
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160
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239
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45
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1000 x 2000
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132
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257
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45
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174
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338
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63
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1200 x 2000
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126
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297
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63
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166
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390
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88
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1350 x 2500
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130
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427
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102
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170
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561
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142
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1500 x 3000
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153
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579
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153
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174
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761
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214
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1700 x 3000
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128
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639
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191
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168
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840
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267
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2000 x 3500
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128
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875
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308
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168
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1150
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430
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2500 x 4000
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137
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1381
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663
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180
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1815
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925
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2500 x 5500
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148
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2019
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943
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195
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2653
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1317
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3300 x 4500
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130
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1884
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1175
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171
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2476
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1640
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3300 x 6500
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146
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3015
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1814
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191
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3961
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2532
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3300 x 10600
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158
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5257
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3067
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208
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6907
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4281
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4500 x 9000
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146
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5747
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4752
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192
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7551
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6633
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* Other size can be produced follow client's requirements.
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Features
Optimized Pressure Technology
Advanced pressure calibration ensures maximum energy absorption and uniform compression across the entire surface. Each fender is pre-tested and fine-tuned for consistent behavior under variable loads.
High Fatigue Resistance
The multi-layer cord fabric design prevents delamination and structural fatigue under cyclic loads, providing outstanding resilience during long-term use.
Modular Tire Chain Protection Net
Each fender is fitted with a heavy-duty chain and tire net to resist abrasion and impact. The modular design allows quick replacement of worn tires without disassembly.
Environmentally Adaptive Material
The rubber compound formula is optimized for UV, ozone, and seawater resistance. Fenders maintain flexibility and air retention from–40 °C to+70 °C, ensuring global operational compatibility.
Applications
Offshore Oil and Gas Platforms
Used for floating production storage and offloading (FPSO) units and single-point mooring systems, providing reliable impact absorption in open-sea environments.
Shipyards and Drydocks
Protects hulls during maintenance, testing, and retrofitting operations where frequent repositioning is required.
Military and Coast Guard Bases
Ensures secure berthing for high-value naval and patrol vessels operating under rapid docking conditions.
Why Choose Hongruntong Marine
Decades of Field Experience
Over 25 years of continuous R&D in fender technology enable us to deliver proven solutions across 60+ countries and all marine environments.
Rigorous Quality Assurance
Every batch of raw rubber undergoes hardness, elongation, and tensile-strength testing. Finished fenders are inspected with ultrasonic and hydrostatic tests to ensure ISO 17357-1 compliance.
Engineering Customization
Hongruntong’s engineering team provides 3D modeling, finite element simulation, and technical drawings for each project, supporting EPC contractors and shipyard designers.
After Sales Commitment
We maintain a 24/7 service response with spare parts, on-site supervision, and digital manuals for pressure monitoring and inflation management.
FAQ
Q1: How do pneumatic fenders differ from foam-filled fenders?
A: Pneumatic fenders use compressed air to absorb impact, allowing greater elasticity and lighter weight, while foam-filled types rely on solid energy absorption.
Q2: Can these fenders be installed permanently?
A: Yes. They can be fixed using chain systems for long-term berthing or used as floating mobile units for temporary operations.
Q3: What inflation equipment is required?
A: Standard air compressors and gauges are sufficient. Hongruntong provides complete inflation kits and valves for quick setup.
Q4: How are fenders stored when not in use?
A: They can be deflated and stacked for compact storage, minimizing space and shipping costs.
Q5: What is the warranty period?
A: All fenders come with a 24-month manufacturing warranty, extendable under maintenance contracts.
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