150X100X100 cm Pneumatic Rubber Fender with Tyres and Chains for Marine

Pneumatic Rubber Fender with Tyres and Chains for Marine

Product Description:

Material Advantages:

### I. Product Description

- Core Positioning: A flexible buffer device specifically designed for ship berthing and dock protection. Through a structure of "rubber fender body + tire chain sheath," it absorbs the impact energy of ships, reducing impact damage to the hull and dock.

- Core Characteristics: High energy absorption, low surface pressure, and performance does not decrease during tilting and compression. It can float with the tides and ship movement, adapting to multi-directional berthing needs. Easy to install, resistant to marine environmental aging, and strong resistance to repeated impact fatigue.

- Typical Specifications: Specifyed in "diameter × length" (e.g., 500mm × 1000mm to 4500mm × 12000mm), initial inflation pressure is typically 0.05-0.08MPa, energy absorption is 6-9037KJ, and reaction force is 64-10490KN (specific details vary depending on specifications). - Structural Form: The main body is a cylindrical inflatable rubber bladder, with metal flanges at both ends (including inflation valves and safety valves). The outer layer is evenly wrapped with wear-resistant tires, secured by high-strength chains, forming a double protective layer.

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### II. Core Material Composition

#### 1. Rubber Fender Body Material

- Inner Layer Rubber: Primarily natural rubber, combined with styrene-butadiene rubber and neoprene rubber, with added sealing agents. Its core function is to prevent gas leakage and ensure airtightness.

- Outer Layer Rubber: A blend of natural and synthetic rubber, with added wear-resistant, anti-aging, and salt spray-resistant additives. Used to resist marine environmental corrosion and external scratches, protecting the internal structure.

- Reinforcing Frame: Utilizes rubber-coated fabric (polyester or nylon), wound and laid at specific angles. Improves the fender's tensile and impact resistance, preventing deformation and cracking.

- Metal Fittings: End flanges and coil rings are made of carbon steel or stainless steel. The surface is treated for rust and corrosion prevention, ensuring strong adhesion to the rubber and a long service life.

#### 2. Tire and Chain Materials

- Tires: Marine-grade wear-resistant tires are used. The tire body is made of rubber, and the tires are polished after the inner tube is removed. They possess high elasticity and tear resistance, enhancing cushioning and outer wear resistance.

- Chains: High-strength alloy steel chains with galvanized or powder-coated surfaces for corrosion protection. The chain strength matches the fender specifications, ensuring the tires are securely fixed and able to withstand the pulling and impact forces during berthing.

- Connectors: Stainless steel shackles or alloy steel clips are used. This ensures the stability of the connection between the chain and the fender and tires, preventing them from falling off.

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Manufacturing Process:

### I. Overview of Core Production Process

1. Raw Material Preparation and Pre-treatment

2. Rubber Fender Body Molding (Core Step)

3. Body Vulcanization and Initial Quality Inspection

4. Tire and Chain Assembly

5. Overall Performance Testing

6. Packaging and Shipment

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### II. Key Details of Each Step

#### 1. Raw Material Preparation and Pre-treatment

- Core materials include natural rubber, synthetic rubber (styrene-butadiene rubber, neoprene rubber, etc.), tire cord fabric (for strength enhancement), steel wire rings, and valve stems (for inflation).

- Rubber needs to be mixed, with vulcanizing agents, reinforcing agents, and other additives added to ensure elasticity and weather resistance; tire cord fabric and steel wire rings need to be rust-removed and coated with adhesive to improve adhesion to the rubber.

#### 2. Rubber Fender Body Molding

- Employs "winding molding": First, lay the inner layer of rubber in the mold, then wrap the cord fabric layer by layer (arranged at the designed angle to enhance impact resistance), and finally cover with the outer layer of rubber.

- Embed and secure the valve stem to ensure a sealed inflation channel; after the mold is closed, perform preliminary compaction to remove internal air.

#### 3. Body Vulcanization and Initial Quality Inspection

- Place the mold into a vulcanizing tank and vulcanize at 140-160℃ and a certain pressure for 4-8 hours to allow the rubber to cross-link and solidify.

- After vulcanization, open the mold and inspect the body's appearance (no bubbles, cracks, or missing rubber), and pass the airtightness test (inflate to the rated pressure and hold for 24 hours without leakage).

#### 4. Tire and Chain Assembly

- Tire selection: Select wear-resistant and anti-aging marine tires, remove the inner tube, and clean and polish the tire tread.

- Fixing Method: High-strength chains are used to evenly connect and wrap the tires at the pre-set steel lugs or grooves on the fender body.

- Tightening Treatment: Chain joints are locked with shackles. Tire spacing is adjusted according to design requirements to ensure even force distribution and avoid excessive local friction.

#### 5. Overall Performance Testing

- Perform a second airtightness test to verify no leakage after assembly.

- Impact Resistance Test: Simulate ship berthing impact to test the fender's deformation recovery ability and tire/chain strength.

- Dimensional Verification: Check that the fender diameter, length, tire coverage density, etc., meet customer requirements.

#### 6. Packaging and Shipping

- Deflate the fender to normal pressure, wrap it with a waterproof cloth, and protect the chain joints to prevent wear during transportation.

- Includes product certificate and instruction manual (inflation pressure range, maintenance cycle, etc.). Packed in boxes or shipped unpackaged according to sea freight requirements.

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### III. Key Quality Control Points

- Rubber compounding uniformity: Directly affects the fender's elasticity and service life.

- Vulcanization parameter control: Deviations in temperature, pressure, and time can lead to a decline in rubber performance.

- Chain and tire assembly: Chain strength must match the fender specifications, and tires must be securely fixed to prevent them from falling off during berthing.

- Air tightness: A core indicator; leakage will directly lead to fender failure.

Features:

Technical Parameters:

Applications:

Marine inflatable rubber fenders with tires and chains are primarily used in **ship berthing and dock protection scenarios**, featuring strong impact resistance and friction protection, suitable for various water facilities and vessels requiring cushioning and protection.

### I. Core Application Areas

#### 1. Port and Dock Protection

- Suitable for various port berths such as container terminals, bulk cargo terminals, oil terminals, and LNG terminals.

- Protects dock walls (concrete, steel structures, pile-based dock walls) from impacts and friction during ship berthing, while reducing ship hull damage.

#### 2. Ship Mooring and Operation Protection

- Used by large vessels such as ocean-going freighters, container ships, tankers, and LNG carriers when mooring alongside each other in anchorages or docks.

- Used for small and medium-sized vessels such as fishing boats, engineering vessels, and ferries when mooring alongside mother ships or work platforms, providing cushioning protection to prevent hull collision deformation.

#### 3. Offshore Platforms and Special Facilities

- Perimeter protection for oil drilling platforms, wind power installation platforms, and offshore floating structures.

- Impact protection for fixed facilities such as bridge piers of cross-sea bridges, lighthouse bases, and port anti-collision piles.

#### 4. Special Operating Scenarios

- Shipyards: Buffering during ship entry/exit and docking to prevent hull scratches.

- Ferry terminals and Ro-Ro terminals: High-frequency berthing scenarios; tire + chain structure improves wear resistance and reduces maintenance frequency.

### II. Core Application Advantages and Applicable Scenarios

- High Impact Scenarios: Double buffering of tires and fenders for larger ships and heavy-load vessels, absorbing impact more effectively.

- High Friction Scenarios: Ports with frequent ship berthing and large waves; wear-resistant outer tire layer and chain fixation prevent displacement, extending service life.

- Harsh environments: Suitable for marine salt spray and ultraviolet radiation environments. The rubber fenders are weather-resistant, and the tires/chains are designed to resist corrosion, making them suitable for long-term outdoor use.

Support and Services:

After-sales consultation: We provide 24/7 customer service to answer customer questions regarding anchor chain usage, such as anchor chain specification selection, usage methods, and maintenance points.

Regular follow-up visits: The manufacturer may conduct regular follow-up visits to customers to understand the anchor chain 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 anchor chain maintenance guidance, including regularly checking for deformation, rust, and wear of the chain links; cleaning the anchor chain with special cleaning agents and brushes; applying rust-preventive oil or corrosion inhibitors after cleaning; and lubricating the chain link connections.

This high - strength alloy steel painted stud - link anchor chain, with its excellent quality and attentive service, builds a solid guarantee for your maritime career. Choosing us means choosing safety, efficiency, and worry - free operation. Embark on a new journey of navigation, starting from choosing our anchor chain!

Any question please let us know ,our JinCheng maritime will provide you the best service with 7*24 hours ~