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The BV Certificated Gray D-Type Rubber Fender DD350 is a top-tier marine protection product engineered to safeguard vessels, docks, and marine structures from collision damage. As a flagship model in the DD-series (double-D center bore) of extruded rubber fenders, it combines a compact, robust design with exceptional impact absorption—making it a preferred choice for frame docks, tugs, workboats, and small craft operations. Manufactured by China Marine Rubber (Qingdao) Industrial Co., Ltd., a specialist in rubber fender systems, this product adheres to international marine standards and delivers reliable performance in harsh saltwater, freshwater, and industrial marine environments. Whether for inland waterways, marinas, or commercial ports, the DD350 D-Type Rubber Fender balances functionality, durability, and ease of use to meet the diverse needs of marine protection projects.
Specification | Details (Unit: mm/kg/m) |
Model | DD350 |
A (Core Dimension) | 350 |
B (Core Dimension) | 350 |
C (Thickness) | 175 |
D (Center Bore) | 175 |
h (Height) | 87.5 |
øE (Outer Hole Diameter) | 80 |
øF (Inner Hole Diameter) | 38 |
G (Mounting Range) | 100-250 |
H (Installation Span) | 300-600 |
Flat Bar | 130x16 |
Bolt Size | M33 |
Weight | 107 |
Note: The DD-series also includes models like DD100, DD200, and DD500, while the DC-series (cylindrical center bore) offers additional options for different load requirements.
Align the DD350 fender with the mounting surface (dock edge, vessel hull, or pontoon).
Secure the fender using the provided 130x16 mm flat bar and M33 bolts, ensuring a tight fit within the 100-250 mm mounting range.
Verify that the installation span (300-600 mm) matches the project’s structural requirements to optimize impact absorption.
Clean the fender surface quarterly to remove marine growth, debris, or chemical residues.
Inspect bolts annually for tightness and replace any corroded hardware promptly.
Avoid contact with sharp objects or abrasive materials that may damage the rubber surface.
For custom pre-curved fenders, check for structural deformation annually and contact the manufacturer for repairs if needed.
Beyond BV Certification, the DD350 D-Type Rubber Fender complies with ISO marine rubber standards, ensuring consistency in material quality and performance. China Marine Rubber maintains strict quality control throughout the production process—from raw material selection to extrusion and finishing—guaranteeing that every unit meets or exceeds customer expectations. The product also comes with a 12-month warranty against manufacturing defects, providing additional peace of mind for buyers.
Standard colors are black and gray (Navy). Custom colors are available upon request with a minimum order quantity.
Yes. The high-grade synthetic rubber material is resistant to saltwater corrosion, UV radiation, and marine chemicals, making it ideal for coastal ports and saltwater applications.
Absolutely. Pre-curved designs are available for custom orders—simply provide your dock’s curvature radius, and our team will engineer a fender that fits perfectly.
More Details about D Fender
The BV Certificated Gray D-Type Rubber Fender DD350 is a top-tier marine protection product engineered to safeguard vessels, docks, and marine structures from collision damage. As a flagship model in the DD-series (double-D center bore) of extruded rubber fenders, it combines a compact, robust design with exceptional impact absorption—making it a preferred choice for frame docks, tugs, workboats, and small craft operations. Manufactured by China Marine Rubber (Qingdao) Industrial Co., Ltd., a specialist in rubber fender systems, this product adheres to international marine standards and delivers reliable performance in harsh saltwater, freshwater, and industrial marine environments. Whether for inland waterways, marinas, or commercial ports, the DD350 D-Type Rubber Fender balances functionality, durability, and ease of use to meet the diverse needs of marine protection projects.
Specification | Details (Unit: mm/kg/m) |
Model | DD350 |
A (Core Dimension) | 350 |
B (Core Dimension) | 350 |
C (Thickness) | 175 |
D (Center Bore) | 175 |
h (Height) | 87.5 |
øE (Outer Hole Diameter) | 80 |
øF (Inner Hole Diameter) | 38 |
G (Mounting Range) | 100-250 |
H (Installation Span) | 300-600 |
Flat Bar | 130x16 |
Bolt Size | M33 |
Weight | 107 |
Note: The DD-series also includes models like DD100, DD200, and DD500, while the DC-series (cylindrical center bore) offers additional options for different load requirements.
Align the DD350 fender with the mounting surface (dock edge, vessel hull, or pontoon).
Secure the fender using the provided 130x16 mm flat bar and M33 bolts, ensuring a tight fit within the 100-250 mm mounting range.
Verify that the installation span (300-600 mm) matches the project’s structural requirements to optimize impact absorption.
Clean the fender surface quarterly to remove marine growth, debris, or chemical residues.
Inspect bolts annually for tightness and replace any corroded hardware promptly.
Avoid contact with sharp objects or abrasive materials that may damage the rubber surface.
For custom pre-curved fenders, check for structural deformation annually and contact the manufacturer for repairs if needed.
Beyond BV Certification, the DD350 D-Type Rubber Fender complies with ISO marine rubber standards, ensuring consistency in material quality and performance. China Marine Rubber maintains strict quality control throughout the production process—from raw material selection to extrusion and finishing—guaranteeing that every unit meets or exceeds customer expectations. The product also comes with a 12-month warranty against manufacturing defects, providing additional peace of mind for buyers.
Standard colors are black and gray (Navy). Custom colors are available upon request with a minimum order quantity.
Yes. The high-grade synthetic rubber material is resistant to saltwater corrosion, UV radiation, and marine chemicals, making it ideal for coastal ports and saltwater applications.
Absolutely. Pre-curved designs are available for custom orders—simply provide your dock’s curvature radius, and our team will engineer a fender that fits perfectly.
More Details about D Fender
