Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Your message must
be between 20-3,000 characters!
Submit Requirement
Thank You！
Your requirement has been sent. we will contact you quickly!
{"title":"Submarine Fenders Marine Fenders Custom Size Available Top Level Natural Rubber","imgUrl":"https:\/\/img.chinax.com\/nimg\/6f\/03\/8300182388a84d700700986e5b86-200x200-1\/submarine_fenders_marine_fenders_custom_size_available_top_level_natural_rubber.jpg","attrs":{"Brand Name":"Hongruntong Marine","Model Number":"HM-SF19","Certification":"ISO, BV, ABS, DNV, LR, SGS, CCS, RMRS","Place of Origin":"China"}}
{"title":"Submarine Hydro Pneumatic Fenders with High Energy Absorption Stable Vertical","imgUrl":"https:\/\/img.chinax.com\/nimg\/de\/f9\/1a073211a5761e10765c0bdc9369-200x200-1\/submarine_hydro_pneumatic_fenders_with_high_energy_absorption_stable_vertical_floating_and_corrosion_resistant_for_marine_docking.jpg","attrs":{"Brand Name":"Hongruntong Marine","Model Number":"HM-SF981","Certification":"ISO, BV, ABS, DNV, LR, SGS, CCS, RMRS","Place of Origin":"China"}}
{"title":"50kpa Submarine Fender Hydropneumatic Submarine Rubber Fender Dock Sling Type","imgUrl":"https:\/\/img.chinax.com\/nimg\/3f\/37\/7c272d95d7c9fd6e9dfb7babef29-200x200-1\/50kpa_submarine_fender_hydropneumatic_submarine_rubber_fender_dock_sling_type.jpg","attrs":{"Brand Name":"Hongruntong Marine","Model Number":"DF-4500*12000","Certification":"BV, ABS, PIANC, DNV","Place of Origin":"CHINA"}}
{"title":"Submarine Fenders with Low Reaction Force Wear Resistant Shock Buffer Performanc","imgUrl":"https:\/\/img.chinax.com\/nimg\/51\/bb\/452fc0a3ea849a47a1f505a33ede-200x200-1\/submarine_fenders_with_low_reaction_force_wear_resistant_shock_buffer_performance_for_marine_docking.jpg","attrs":{"Brand Name":"Hongruntong Marine","Model Number":"HM-SF16","Certification":"ISO, BV, ABS, DNV, LR, SGS, CCS, RMRS","Place of Origin":"China"}}
{"title":"ISO17357 Submarine Fender Sling Type Inflatable Pneumatic Fender","imgUrl":"https:\/\/img.chinax.com\/nimg\/a4\/8d\/9bda20ed2deb14b603475c19a439-200x200-1\/iso17357_submarine_fender_sling_type_inflatable_pneumatic_fender.jpg","attrs":{"Brand Name":"Hongruntong Marine","Model Number":"DF-4500*12000","Certification":"BV, ABS, PIANC, DNV","Place of Origin":"CHINA"}}
{"title":"Submarine Fenders with High Energy Absorption, Marine-Grade Rubber, and Custom","imgUrl":"https:\/\/img.chinax.com\/nimg\/de\/a2\/4990aea16c3c2ed17c5ed0d52500-200x200-1\/submarine_fenders_with_high_energy_absorption_2c_marine_grade_rubber_2c_and_custom_design_capability.jpg","attrs":{"Brand Name":"Hongruntong Marine","Model Number":"HM-SF795","Certification":"ISO, BV, ABS, DNV, LR, SGS, CCS, RMRS","Place of Origin":"China"}}
Submarine Fenders Perfect Dock Berthing Protection Anti Collision Custom Size Available
Hongruntong Marine Submarine Fenders are high-performance marine protection systems designed for submarine docking operations, offshore maintenance facilities, shipyard berthing areas, and specialized marine engineering platforms. Manufactured using premium marine-grade rubber compounds with reinforced synthetic elastomers, these fenders deliver excellent energy absorption, low reaction force, and long-term structural stability in demanding ocean environments.
The fender design focuses on protecting submarine hull integrity by distributing berthing impact forces evenly across the contact surface. This prevents localized stress concentration that could damage sensitive coatings, sonar-related surfaces, and external structural components. Compared with conventional marine fenders, submarine fenders provide more controlled deformation behavior, higher durability under repeated compression, and improved performance stability under varying tidal conditions.
Hongruntong Marine offers customized submarine fender solutions in multiple sizes, hardness grades, and structural configurations. These systems are suitable for fixed quays, floating docks, dry docks, offshore platforms, and underwater maintenance bases. Optional enhancements such as corrosion-resistant chains, stainless steel fittings, and reinforced steel cores further improve durability and extend service life.
These fenders are widely applied in submarine berthing stations, large-scale ship repair yards, offshore engineering projects, and marine logistics terminals where operational safety, docking precision, and long-term reliability are essential requirements.
Case Study
A coastal shipyard in East Asia upgraded its submarine docking infrastructure after facing repeated issues with uneven load distribution and accelerated wear on hull coatings during maintenance operations for 3,800-ton submarines. Hongruntong Marine provided a customized submarine fender system with enhanced elastic recovery performance and optimized cylindrical geometry. After installation, docking stability improved significantly, hull contact stress was reduced, and maintenance efficiency increased due to smoother vessel positioning and reduced adjustment time during berthing operations.
Specifications
Product Name
Submarine Fenders
Material
SBR, NR
Size Available
3.3*10.6M
Tensile Strength
=> 18 MPA
Density
90+/-5
Colour
Black
Application
Submarine, ferry, oil rigs and so on
Hardness
40-70 Shore A
Elongation
=> 400
Tear Strength
=> 400 N/cm
Breaking Strength
>310
Chemical Resistance
Fuel A: No deterioration Oil 3: No deterioration Lubricating oil: No deterioration Cutting oil: No deterioration Dilute HCL: No deterioration
Diameter x Length
Initial Internal Pressure
Ship Radius
Water Ratio
Guaranteed Energy Absorption
Reaction Force at GEA
Hull Pressure at GEA
Deflection at GEA
1500 x 6100
50
3000
60%
131
562
140
51%
80
186
754
188
1700 x 7200
50
4000
65%
167
682
137
47%
80
239
918
184
2000 x 6000
50
4000
70%
135
544
131
41%
80
194
736
177
2500 x 5500
50
4500
65%
225
769
135
41%
80
322
1035
182
2500 x 7700
50
4500
70%
326
1016
136
41%
80
470
1368
183
3300 x 6500
50
4500
75%
307
887
127
35%
80
442
1203
173
3300 x 10600
50
5000
65%
1003
2137
142
47%
80
1429
2863
190
4500 x 9000
50
5000
60%
1439
2401
138
46%
80
2059
3228
185
4500 x 12000
50
6000
65%
1977
3198
141
46%
80
2819
4277
189
Characteristics
Stable Energy Absorption Performance
Hongruntong Marine Submarine Fenders are engineered to deliver stable and predictable energy absorption during submarine docking operations. The internal rubber structure is designed to compress gradually under impact, ensuring that kinetic energy is evenly distributed across the fender body. This reduces sudden force transmission to submarine hulls and minimizes structural stress during berthing. The stable energy absorption system helps maintain consistent performance even under varying tidal conditions and repeated docking cycles, improving operational safety and reducing the risk of hull damage in sensitive marine environments.
High-Strength Marine Rubber Construction
The fenders are manufactured using high-quality natural rubber combined with advanced synthetic elastomer materials that provide excellent resistance to seawater corrosion, UV exposure, ozone aging, and long-term mechanical fatigue. Hongruntong Marine applies precise vulcanization technology and optimized material formulation to enhance elasticity, tensile strength, and wear resistance. This ensures that the fenders maintain structural integrity and performance stability even in harsh offshore environments with continuous exposure to extreme weather and high-frequency operational loads.
Flexible Engineering Customization
Each submarine docking project has unique operational requirements, including vessel size, displacement, docking speed, tidal variation, and berth structure. Hongruntong Marine provides fully customized engineering solutions tailored to these conditions. The engineering team conducts detailed load analysis and performance calculations to determine optimal fender dimensions, hardness levels, and installation configurations. Customers can choose from various mounting systems such as chain suspension, fixed bolt installation, and modular support structures. Optional accessories like UHMW-PE facing pads, corrosion-resistant hardware, and reinforced internal steel cores are available for enhanced performance.
Extended Service Life and Low Maintenance Design
Submarine docking systems require long-term reliability with minimal maintenance interruption. Hongruntong Marine Submarine Fenders are designed for extended operational life, maintaining stable performance under repeated compression and harsh environmental exposure. The rubber material resists cracking, deformation, and aging, ensuring consistent energy absorption over many years of service. This low-maintenance design reduces inspection frequency, lowers replacement costs, and supports efficient long-term operation for shipyards and offshore facilities.
Applications
Submarine Berthing and Maintenance Facilities: Submarine fenders are widely used in dedicated berthing stations where precise vessel positioning and hull protection are required during docking, inspection, and maintenance operations. Their low-reaction force design ensures safe and stable contact with submarine hull surfaces.
Shipyard Dry Dock Systems: Dry dock facilities use submarine fenders to stabilize vessels during repair, overhaul, and maintenance procedures. The fenders help reduce structural stress caused by tidal variations and improve docking efficiency during maintenance cycles.
Offshore Engineering and Support Platforms: Offshore platforms and underwater support bases rely on submarine fenders to ensure safe transfer and docking operations under wave-influenced and variable environmental conditions. The system provides reliable cushioning performance and structural protection in offshore environments.
Why Choose Hongruntong Marine
Deep Expertise in Marine Fender Engineering: Hongruntong Marine specializes in the design and manufacturing of advanced marine fender systems with a strong focus on submarine docking applications. The company has extensive experience working with global shipyards, offshore platforms, and marine engineering contractors.
Strict Quality Control and Premium Materials: All submarine fenders are manufactured using carefully selected natural rubber and synthetic elastomer materials that meet strict marine engineering standards. The production process includes comprehensive quality control at every stage.
Advanced Customization and Engineering Support: Hongruntong Marine provides full customization services including structural design optimization, hardness adjustment, mounting system configuration, and reinforcement solutions.
Reliable Global Service and Technical Assistance: The company offers complete technical support throughout the project lifecycle, including consultation, design assistance, installation guidance, and after-sales service.
FAQ
1. What types of submarines can use these fenders?
Hongruntong Marine Submarine Fenders can be customized for different submarine sizes and classes, with specifications adjusted according to displacement and docking conditions.
2. Are the fenders suitable for floating dock systems?
Yes. The fenders can be installed in both floating and fixed dock environments, including areas with significant tidal movement and wave influence.
3. How do the fenders perform in harsh marine environments?
The rubber materials are designed to resist seawater corrosion, UV exposure, ozone aging, and long-term mechanical stress in offshore conditions.
4. What customization options are available?
Customization includes size, hardness, structural reinforcement, mounting systems, and corrosion-resistant accessories based on project requirements.
5. What is the expected maintenance requirement?
The system requires minimal maintenance, with periodic inspection and basic cleaning being sufficient to ensure long-term stable performance.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
1988
Total Annual:
7,462,700-11,940,300
Employee Number:
300~500
Ecer Certification：
Verified Supplier
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 e... 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 e...
