Long 1M-12M Diameter 0.5M-4.5M Certificate CCS,BV,GL,ISO9001 Tire and Chain Yokohama Rubber Dock Fender Pneumatic Rubber Fender

Long 1M-12M Diameter 0.5M-4.5M Certificate CCS,BV,GL,ISO9001 Tire and Chain Yokohama Rubber Dock Fender Pneumatic Rubber Fender

Product Description:

Material Advantages:
 
- Composite Rubber Base Material: Utilizes a blend of natural rubber and nitrile rubber. Natural rubber ensures exceptional elasticity and cushioning resilience, while nitrile rubber enhances oil and solvent resistance, making it suitable for specialized environments like oil terminals. The base material features high density and tear strength exceeding 25MPa, resisting swelling and aging even after prolonged seawater immersion.
- Reinforced skeleton layer: Incorporates 6-12 layers of polyester cord fabric in an interwoven structure. The cord fabric undergoes rubber impregnation for seamless bonding with the base material, boosting tensile strength by 30%. This design withstands instantaneous impact forces during heavy vessel berthing, preventing deformation or damage to the fender body.
- Tire Chain Protection Layer: Outer layer wrapped with high-density recycled tire cut-and-sewn layer. Tire rubber hardness exceeds Shore A 85, delivering excellent scratch resistance. The tire layer is further wrapped with high-strength manganese steel chains (8-16mm diameter), hot-dip galvanized for rust and corrosion resistance. This effectively defends against scraping and impact from ship anchor chains and protruding structures, safeguarding the core fender body.
- Precision Connectors: Includes stainless steel lifting rings and high-pressure inflation valves. Lifting rings are forged from 304 stainless steel with a load capacity of 5-20 tons. Inflation valves feature copper valve cores + nitrile rubber seals, ensuring superior airtightness with a leakage rate below 0.01 MPa/month.

Manufacturing Process:
 
Precision Cutting: Utilizing CNC laser cutting technology, precise cutting of the material fabric is carried out to ensure a dimensional error of ≤ 1%, meeting the requirements for the formed shape after inflation.
Reinforced Double Stitching: At key seams, double-thread sewing combined with heat-pressed edge sealing technology is employed to enhance the sealing performance and tear resistance, preventing air leakage or thread breakage after inflation.
High-Pressure Heat Bonding: The fabric seams undergo high-temperature and high-pressure heat bonding treatment, achieving high fusion and enhancing the overall structural strength to withstand collisions and impacts in marine environments.
Multi-Layer Coating Treatment: The surface is sprayed with UV protection layer and wear-resistant coating for dual protection, isolating ultraviolet rays and seawater erosion, and prolonging the service life.
Strict Air-Tightness Testing: The finished product undergoes a 24-hour high-pressure inflation test, with a pressure retention rate of ≥ 98%, ensuring no hidden leaks and stable sealing.
Edge Reinforcement Molding: The edges are treated with thickened edge wrapping and reinforced fastening design to strengthen the stressed points and prevent wear and deformation over long-term use.

Features:

- Triple Protection, Enhanced Damage Resistance: The tire layer combined with manganese steel chains forms dual physical barriers. Paired with the rubber body's tear resistance, it achieves a protective logic of “scratch and impact prevention first, shock absorption second.” Compared to standard Yokohama fenders, scratch and puncture resistance improves by 60%, extending service life to 8-12 years.
- Efficient Cushioning, Complete Impact Absorption: Building on Yokohama's “inflation-pressure transfer-elastic recovery” cushioning principle, combined with the high elasticity of composite rubber, it absorbs over 90% of impact forces during vessel berthing. Collision pressure is dispersed below 0.3MPa, effectively protecting both wharf concrete structures and vessel hull coatings.
- Structurally stable for high-load applications: Tire chain layers and fender bodies are secured with specialized adhesives and steel clips, achieving over 95% adhesion with no relative displacement during berthing. Operating pressure remains stable at 0.05-0.2MPa after inflation, with burst pressure ≥0.5MPa, accommodating vessels from 100,000 to 300,000 DWT.
- Flexible installation and easy maintenance: Supports multiple mounting methods including floating, suspended, and fixed configurations. Custom installation plans can be tailored to dock structures (e.g., caisson docks, gravity docks). Routine maintenance requires only periodic checks of chain tightness and inflation pressure. Individual tire sections can be replaced after wear, reducing maintenance costs.
- Strong environmental adaptability: Withstands extreme temperatures from -30°C to 80°C with excellent UV resistance. After 5,000 hours of UV exposure, rubber elasticity retention exceeds 85%. Suitable for harsh environments including seawater, oil contamination, and salt spray, with no special usage restrictions.
 

Technical Parameters:

Material: Natural rubber + synthetic rubber composite base material, with built-in polyester cord reinforcement layer, paired with high-strength polyester slings.
Specifications: Diameter 400mm–4000mm, length 1200mm–10000mm (custom sizes available).
Working Pressure: 0.03~0.16MPa, Burst Pressure ≥0.35MPa.
Accessories: Anti-leak inflation valve, pressure test port, stainless steel shackle, wear-resistant protective sleeve (optional).

Applications:

- Heavy-duty port terminals: Busy ports such as container terminals, crude oil terminals, and iron ore terminals, providing berthing protection for vessels over 100,000 DWT to handle high-frequency, high-load berthing demands.
- Industrial-specific terminals: Chemical terminals, LNG terminals, coal terminals, and other specialized scenarios. Leveraging oil-resistant and corrosion-resistant properties to ensure safe berthing for vessels transporting hazardous cargo.
- Large Ship Repair and Construction Yards: Provides side protection during ship docking for repairs, preventing damage from collisions with dock walls while accommodating frequent movement requirements throughout the repair process.
- Cross-sea engineering structures: Collision protection for fixed installations like bridge piers, subsea tunnel portals, and offshore lighthouses, withstanding accidental impacts from passing vessels.
- Emergency protection scenarios: Temporary safeguards for port expansion zones or damaged wharf repairs, enabling rapid installation to provide interim safety assurance.

Support and Services:

After-sales consultation: We provide 24/7 customer service to answer customer questions , such as specification selection, usage methods, and maintenance points.
Regular follow-up visits: The manufacturer may conduct regular follow-up visits to customers to understand the usage and collect customer feedback in order to continuously improve product quality and service levels.
Maintenance guidance: The manufacturer or professional organizations will provide customers with maintenance guidance, including regularly checking for deformation, rust, ; applying rust-preventive oil or corrosion inhibitors after cleaning; and lubricating .

 
 
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