Floating Yokohama Pneumatic Rubber Fender With Chain And Net

Floating Yokohama Pneumatic Rubber Fenders with Chain and Tire Net

Product Overview

FLORESCENCE Yokohama Pneumatic Rubber Fenders are high-performance, floating anti-collision systems manufactured in strict accordance with the ISO 17357-1:2014 international standard. Utilizing the high elasticity of compressed air as a buffer medium, these floating fenders are engineered for critical maritime operations, including Ship-to-Ship (STS) transfers at mid-sea, double banking operations, and vessel-to-berth (STB) transfers at docks, jetties, and ocean terminals.

Due to their progressive energy absorption and low reaction force characteristics, Yokohama type pneumatic fenders are uniquely suited for protecting liquid cargo vessels (LNG/LPG tankers) and naval defense vessels carrying highly sensitive electronic and structural equipment.

Three-Layer Structural Architecture

The core body of our Yokohama pneumatic marine fender is constructed through a precision high-pressure vulcanization process that seamlessly integrates three distinct functional layers:

Outer Rubber Layer: Formulated from a heavy-duty, high-tensile compound designed to withstand severe external impact forces, shear stresses, and harsh marine weathering. This layer protects the inner layers from structural abrasion and ozone degradation under extreme weather conditions.

Reinforced Synthetic Cord Layer: Utilizing multi-layered, high-tensile polyamide fiber (synthetic tire-cord) arranged at optimized, innovative angles. This interlocking twine technology evenly distributes external loads and operational stresses, ensuring the hull maintains structural integrity and uniform energy absorption under compression.

Inner Rubber Layer: Engineered with premium airtight elastomeric compounds specifically designed to seal the compressed air inside completely, minimizing long-term pressure drop and air leakage.

Technical Specifications & Performance Matrix

The following matrix details our standard Yokohama pneumatic rubber fender sizes verified at a 60% compression deflection limit for both 50 kPa and 80 kPa initial internal pressures. Custom dimensions and non-standard profiles can be engineered upon request.

Fender Classification & Pressure Ratings

Structural Configurations

Chain-and-Tire Net Type (CTN): The fender body is fully enclosed within a protective lattice network composed of heavy-duty chains, wire ropes, and high-durability tires. Each terminal end is securely linked together using specialized single or double towing rings. This configuration shields the rubber core against extreme friction from concrete quay walls and jagged ship hulls.

Sling Type: A streamlined configuration designed to be deployed without an external chain-and-tire net. The smooth rubber exterior minimizes fender weight, facilitates rapid deployment, and is highly recommended for hull protection on naval ships where non-marking performance is essential.

Initial Pressure Designations

Pneumatic 50 (Initial Internal Pressure: 50 kPa): Engineered for standard operations requiring a lower, gentler reaction force profile to safeguard delicate structural hulls.

Pneumatic 80 (Initial Internal Pressure: 80 kPa): Formulated for high-load offshore operations requiring maximum energy absorption capacities to withstand severe wave agitation.

Primary Application Environments

Mid-Sea Ship-to-Ship (STS) Transfers: Safe lightering and bunkering operations for oil tankers, dry bulk carriers, and maritime supply vessels in open waters.

Double Banking Operations: Securing parallel moored vessels at anchorage or within restricted port boundaries.

Vessel-to-Berth (STB) Transfers: Providing dynamic standoff distances at specialized jetties, concrete wharves, and high-tidal-range docks.

High-Risk Cargo Protection: Specialized berthing setups for LPG, LNG, and crude chemical tankers that require minimal localized hull stress to avoid structural cracking.

Corporate Credentials & Quality Assurance

Founded in 1992, Qingdao Florescence Co., Ltd. operates as one of China's largest, fully integrated marine fender manufacturing enterprises. We maintain a long-standing position as an approved global defense supplier, delivering high-specification pneumatic systems to the France Navy, Bangladesh Navy, and other international naval forces. All manufacturing stages are audited under ISO 9001 systems, and our product inventory carries official type-approval certifications from CCS, BV, ABS, and RS.

Pneumatic Fender FAQ

Technical Selection & Performance

Q1: Why are pneumatic rubber fenders recommended for LNG/LPG tankers?

A: Liquid cargo ships have highly sensitive hull structures. Unlike rigid solid fenders, pneumatic fenders use compressed air to deliver a soft, progressive load-deflection profile. This ensures uniform, low contact pressure even during angled berthing, protecting the hull and avoiding spark risks near cryogenic tanks.

Q2: What is the technical difference between 50 kPa and 80 kPa internal pressure?

A: It dictates the initial stiffness and energy capacity. 80 kPa fenders are pre-pressurized higher to absorb massive kinetic energy, making them ideal for large-scale ships and rough open seas. 50 kPa fenders offer a softer contact with lower reaction forces, protecting smaller or naval vessel frames from high structural stress.

Q3: What specific data is required for proper fender model selection?

A: To calculate the exact model, we need your vessel type, deadweight tonnage (DWT), design berthing velocity, berthing angle, local tidal variations, and the dock/jetty structural drawings.

Configurations & Standards

Q4: What is the difference between Sling Type and Chain-and-Tire Net (CTN) Type?

A: Sling Type fenders have a bare rubber skin with lifting eye rings, making them lightweight, economical, and ideal for clean dock or ship-to-dock applications. CTN Type fenders are wrapped in a heavy-duty tire-and-chain mesh. This net acts as sacrificial armor, absorbing all hull friction, slicing, and punctures during rugged ship-to-ship (STS) operations.

Q5: Which international quality standards do your fenders comply with?

A: All our pneumatic rubber fenders are manufactured, tested, and fully certified in strict compliance with the ISO 17357-1:2014 standard, utilizing multi-layer high-tensile synthetic tire cords for ultimate pressure retention.

Operations & Logistics

Q6: Are your pneumatic fenders suitable for Ship-to-Ship (STS) transfers?

A: Yes. They are specifically optimized for open-sea STS transfers, offshore bunkering platforms, remote oil & gas terminals, and temporary marine docking maneuvers.

Q7: How are pneumatic fenders packed and shipped?

A: To maximize container utilization and minimize your ocean freight costs, we typically ship them deflated and tightly folded. However, they can also be delivered semi-inflated or fully assembled upon request for immediate deployment.

Q8: Can pneumatic fenders be repaired on-site if punctured?

A: Yes. Minor surface cuts or punctures can be repaired using professional hot/cold vulcanizing materials. We can supply complete repair kits along with step-by-step guidance directly with your cargo shipment to ensure a service life exceeding 10 years.