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The BV Certificated White D-Type Rubber Fender (DD500) is a specialized marine protection product designed by China Marine Rubber (Qingdao) Industrial Co., Ltd., tailored for frame docks, tugs, and other workboats. As an extruded rubber fender, it features a D-shaped outer structure—with the "DD" design indicating a D-shaped central bore—providing strong impact resistance while maintaining a compact bottom width. Certified by Bureau Veritas (BV), this white fender not only meets strict international quality standards but also offers high visibility in marine environments, enhancing operational safety.
Specification | A (mm) | B (mm) | C (mm) | D (mm) | h (mm) | Bolt Size | Weight (Kg/m) | Application |
DD100 | 100 | 100 | 50 | 50 | 25 | M16 | 8.7 | Small workboats |
DD200 | 200 | 200 | 100 | 100 | 50 | M24 | 34.8 | Medium tugs |
DD300 | 300 | 300 | 150 | 150 | 75 | M30 | 78 | Frame docks |
DD400 | 400 | 400 | 200 | 200 | 100 | M36 | 140 | Large tugs |
DD500 | 500 | 500 | 250 | 250 | 250 | M42 | 218 | Heavy-duty workboats |
DC100 | 100 | 100 | ø30 | ø20 | 25 | M16 | 10.7 | Small pontoons |
DC500 | 500 | 500 | ø250 | ø50 | 95 | M42 | 226 | Large pontoons |
Confirm the installation position on the vessel or dock; mark the bolt holes according to the fender’s "G" (100–250mm) and "H" (400–600mm) dimensions.
Fix the flat bar (e.g., 180×20mm for DD500) to the mounting surface using the specified bolts (M42 for DD500), ensuring tightness.
Align the DD500 Fender with the flat bar; secure the fender to the flat bar using stainless steel fasteners to prevent corrosion.
Check the installation for stability; adjust if there is any misalignment.
Inspect the bolts monthly for looseness; retighten if necessary to avoid fender displacement.
Clean the white surface every 2 weeks with mild detergent to maintain visibility and prevent dirt buildup.
Check the rubber for cracks or deformation quarterly; replace the fender if damage affects performance.
BV Certification: Validated by Bureau Veritas for compliance with international marine safety and environmental standards.
Raw material testing: Uses high-quality synthetic rubber with tensile strength ≥18 MPa, ensuring impact resistance.
Production control: Each fender undergoes pressure testing and dimensional inspection before delivery.
China Marine Rubber provides technical support for installation and a 24-month warranty for BV-certified fenders.
"DD" refers to the fender’s central bore shape—dual D-shaped (both outer and central structures are D-shaped). This design enhances impact absorption compared to "DC" models (cylindrical central bore).
Yes. The white color uses marine-grade UV-resistant pigments, which prevent fading even after long-term exposure to sunlight and saltwater, maintaining high visibility.
More Details about D Fender
The BV Certificated White D-Type Rubber Fender (DD500) is a specialized marine protection product designed by China Marine Rubber (Qingdao) Industrial Co., Ltd., tailored for frame docks, tugs, and other workboats. As an extruded rubber fender, it features a D-shaped outer structure—with the "DD" design indicating a D-shaped central bore—providing strong impact resistance while maintaining a compact bottom width. Certified by Bureau Veritas (BV), this white fender not only meets strict international quality standards but also offers high visibility in marine environments, enhancing operational safety.
Specification | A (mm) | B (mm) | C (mm) | D (mm) | h (mm) | Bolt Size | Weight (Kg/m) | Application |
DD100 | 100 | 100 | 50 | 50 | 25 | M16 | 8.7 | Small workboats |
DD200 | 200 | 200 | 100 | 100 | 50 | M24 | 34.8 | Medium tugs |
DD300 | 300 | 300 | 150 | 150 | 75 | M30 | 78 | Frame docks |
DD400 | 400 | 400 | 200 | 200 | 100 | M36 | 140 | Large tugs |
DD500 | 500 | 500 | 250 | 250 | 250 | M42 | 218 | Heavy-duty workboats |
DC100 | 100 | 100 | ø30 | ø20 | 25 | M16 | 10.7 | Small pontoons |
DC500 | 500 | 500 | ø250 | ø50 | 95 | M42 | 226 | Large pontoons |
Confirm the installation position on the vessel or dock; mark the bolt holes according to the fender’s "G" (100–250mm) and "H" (400–600mm) dimensions.
Fix the flat bar (e.g., 180×20mm for DD500) to the mounting surface using the specified bolts (M42 for DD500), ensuring tightness.
Align the DD500 Fender with the flat bar; secure the fender to the flat bar using stainless steel fasteners to prevent corrosion.
Check the installation for stability; adjust if there is any misalignment.
Inspect the bolts monthly for looseness; retighten if necessary to avoid fender displacement.
Clean the white surface every 2 weeks with mild detergent to maintain visibility and prevent dirt buildup.
Check the rubber for cracks or deformation quarterly; replace the fender if damage affects performance.
BV Certification: Validated by Bureau Veritas for compliance with international marine safety and environmental standards.
Raw material testing: Uses high-quality synthetic rubber with tensile strength ≥18 MPa, ensuring impact resistance.
Production control: Each fender undergoes pressure testing and dimensional inspection before delivery.
China Marine Rubber provides technical support for installation and a 24-month warranty for BV-certified fenders.
"DD" refers to the fender’s central bore shape—dual D-shaped (both outer and central structures are D-shaped). This design enhances impact absorption compared to "DC" models (cylindrical central bore).
Yes. The white color uses marine-grade UV-resistant pigments, which prevent fading even after long-term exposure to sunlight and saltwater, maintaining high visibility.
More Details about D Fender
