D0.5L1.0m Marine Sea Polyurethane Foam Filled Solid Floating Fender

D0.5L1.0m Marine Sea Polyurethane Foam Filled Solid Floating Fender

Product Description:

Material Advantages:

(Marine polyurethane foam-filled solid floating fenders) are mainly composed of the following materials:

Foam core material: Typically made of closed-cell EVA (ethylene-vinyl acetate copolymer) foam or closed-cell polyethylene foam. This foam is lightweight and highly elastic, capable of absorbing a large amount of impact energy under compression. Its closed-cell structure also gives it excellent hydrophobicity; even if the fender surface is damaged, it will not absorb water, thus ensuring the fender's buoyancy and preventing it from sinking.

Outer protective layer: Generally a polyurea coating. Polyurea is a new material with an adjustable high elastic modulus, possessing excellent wear resistance, impact resistance, corrosion resistance, water resistance, and UV protection. It effectively protects the internal foam core material, extending the fender's service life. Its smooth surface and low coefficient of friction minimize damage to the hull, and it is colorfast and non-foaming.

Reinforcing layer: Between the foam core material and the outer protective layer, there is usually a reinforcing layer made of nylon or fiber mesh. This layer increases the fender's strength and toughness, enabling it to better withstand external forces and preventing the outer protective layer from separating from the foam core material. End fittings: The two ends of the fender are usually equipped with hot-dip galvanized steel flanges or chain links, etc., to fix the fender to the dock or hull, which facilitates installation and use and has good corrosion resistance.

Manufacturing Process:

The core of the production process is "core material molding → structural reinforcement → outer layer protection → accessory assembly → inspection and shipment," with each step interconnected to ensure product strength, buoyancy, and weather resistance:

1. Raw Material Pretreatment and Preparation
The foam core material raw material (EVA or polyethylene granules) must be dried to remove moisture and prevent pores after molding.

The outer protective layer raw material (polyurea resin, curing agent) is mixed and stirred in a specific ratio to ensure uniform composition; the reinforcing layer (nylon fiber mesh) is cut to specifications matching the fender dimensions.

End accessories (hot-dip galvanized steel flanges, chain links) undergo surface cleaning to remove oil and impurities, ensuring sealing during subsequent assembly.

2. Foam Core Material Molding
The pretreated foam raw material is placed into a specialized mold and heated and pressurized through molding or injection molding processes to melt, foam, and solidify the material.

During the molding process, temperature (typically 80-120℃) and pressure are strictly controlled to ensure the foam forms a uniform closed-cell structure, guaranteeing buoyancy and elasticity.

After curing, demold the core material and trim the edges to remove excess material and ensure dimensional accuracy meets design requirements.

3. Reinforcing Layer Coating: Evenly wrap or cover the cut nylon fiber mesh onto the foam core material surface, ensuring a complete, wrinkle-free fit.

Some products have a special adhesive applied between the fiber mesh and the core material to enhance adhesion, prevent separation during subsequent use, and improve overall structural strength.

4. Outer Protective Layer (Polyurea) Spraying/Casting: Using high-pressure airless spraying equipment, evenly spray the mixed polyurea material onto the reinforcing layer surface to form a dense protective film.

During spraying, control the coating thickness (typically 3-5mm) to ensure no missed areas, pinholes, or other defects; some large fenders use a casting process to ensure uniform outer layer thickness.

After spraying, cure at room temperature (or accelerate curing at low temperature) to form a complete, wear-resistant, and corrosion-resistant protective structure.

5. End Fitting Assembly
Drill holes at both ends of the cured fender and secure the hot-dip galvanized steel flanges or chain links with bolts, adding sealing gaskets at the bolt connections.

Perform a secondary sealing treatment on the assembled parts by applying anti-corrosion sealant to prevent seawater from seeping into the interior and corroding the fittings or core material.

6. Finished Product Inspection and Finishing
Buoyancy Test: Submerge the fender in water to test its floating state, ensuring there are no issues such as sinking or tilting, and that the buoyancy meets design standards.

Strength Test: Simulate ship impact through impact testing to test the fender's elastic recovery capacity and structural integrity.

Appearance and Dimensional Inspection: Inspect the outer surface for scratches and damage, ensure dimensional deviations are within allowable limits, and verify the secure installation of fittings.

Defective products are repaired by grinding, repainting, or reassembling; qualified products are cleaned and labeled (with specifications, load-bearing capacity, and other parameters).

7. Packaging and Shipment
Wrap the finished fenders with stretch film to prevent scratches on the outer protective layer during transportation.

Package is prepared in batches according to order requirements or shipped unpackaged, with installation instructions and test reports provided.

Features:

The core advantages of marine polyurethane foam-filled solid floating fenders lie in three dimensions: durability, safety, and practicality, meeting the long-term usage needs of complex marine environments:

1. Superior Durability and Longer Lifespan: The outer polyurea coating is wear-resistant, seawater corrosion-resistant, and UV-resistant, preventing cracking or fading, and resisting long-term erosion from marine salt spray and wave impact.

The closed-cell foam core does not absorb water or mold, maintaining structural integrity even if the outer layer is accidentally damaged, avoiding the leakage and failure problems of traditional inflatable fenders, resulting in a service life more than 30% longer than ordinary fenders.

2. Safe and Reliable with Excellent Protection: The solid structure eliminates the risk of tire blowouts and evenly absorbs impact forces during collisions, protecting the hull coating from scratches and preventing damage to the dock structure.

The lightweight and high-strength foam core provides stable buoyancy, ensuring the fender always floats in the designated position and will not sink due to water ingress, guaranteeing the safe positioning of the vessel during berthing.

3. Easy Installation and Low Maintenance Costs: The integrally molded structure requires no inflation or depressurization. Installation only requires fixing via end fittings, saving manpower and time.

No special daily maintenance is needed; there's no need for periodic airtightness checks or gas replenishment, reducing subsequent operation and maintenance investment and lowering operating costs.

4. Wide Adaptability and Flexible Applications: Sizes and load-bearing capacity can be customized according to dock specifications and ship tonnage, adapting to different types of vessels such as container ships, tankers, and yachts, as well as various scenarios including deep-water docks and offshore platforms.

The structure boasts high toughness, able to withstand impacts from different angles, and maintains good elasticity even in low-temperature environments, with no risk of brittleness.

Technical Parameters:

Applications:

The core application scenarios for this marine polyurethane foam-filled solid floating fender revolve around "ship berthing protection," covering various marine and waterfront scenarios and adapting to vessels of different tonnages and complex environmental requirements:

1. Port Terminal Scenarios: Suitable for various specialized terminals such as container terminals, bulk cargo terminals, and oil and gas chemical terminals, providing collision protection for berthing container ships, bulk carriers, tankers, and chemical tankers.

Adaptable to different terminal structures such as deep-water terminals, high-pile terminals, and gravity terminals, it can be fixed to the edge of the terminal or the sides of pontoons to withstand the impact forces when ships berth.

2. Offshore Platform and Engineering Scenarios: Used for offshore drilling platforms, wind power installation platforms, FPSOs (Floating Production Storage and Offloading Units), and other offshore facilities, protecting the platform structure from collision damage by supply vessels and work vessels.

Suitable for offshore construction scenarios, such as temporary docks or work vessel protection for projects like cross-sea bridge construction and subsea pipeline laying.

3. Ship and Yacht Scenarios: Provides hull protection for large ocean-going vessels and near-shore transport ships, and can also serve as a buffer device when ships are berthed, preventing hull scraping.

Suitable for yacht marinas, sailing clubs, and other recreational waters, providing flexible protection for small yachts and speedboats, balancing protection with hull paint protection.

4. Special Environments and Emergency Scenarios: Suitable for near-shore and offshore environments with high salt spray concentrations and large waves, and can also adapt to extreme climates such as low and high temperatures, maintaining stable performance.

Can be used as a temporary protective device in emergency rescue scenarios, such as ship grounding rescue, temporary berthing buffer during maritime accident handling, or rapid construction protection for temporary docks.

5. Other Waterfront Facility Scenarios: Used on both sides of port gates and locks to protect the gate structure from impacts when ships enter and exit; also suitable for freshwater scenarios such as inland river ports and lake docks, possessing corrosion resistance and antifouling properties.

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 ~