Pneumatic fender

2026-09-09 | Yifeng Qin

Types of Marine Fenders: How to Compare the Main Families

Specifying a marine fender without understanding which family fits your operating conditions leads to wasted time and unsuitable offers. Marine fenders are classified by mounting method, contact geometry, and operating medium. The main families include pneumatic, foam-filled, hydro-pneumatic, fixed rubber systems, extruded profiles, tugboat protection, rollers, and vessel-attached collars. Each family has distinct application boundaries. […]

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2026-09-08 | Yifeng Qin

What Is Berthing in Shipping? Process and Fender Inputs

Berth, berthing, mooring, docking, anchoring. Tender documents mix these words, and the wrong one sends a fender enquiry to the wrong engineering team. Berthing is the controlled movement of a vessel to its assigned berth, up to the point where it is secured alongside. The berth is the wharf space itself. Mooring, docking and anchoring […]

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2026-06-22 | Yifeng Qin

PIANC MarCom 211: LNG Terminal Fender Design Guide

LNG terminal owners and EPC engineers now have one practical issue to check: many fender specifications still refer to WG33, but PIANC has moved on. A specification can look familiar and still miss the current design basis for seagoing vessel berthing. PIANC MarCom 211 is the 2024 PIANC fender guideline (March 2024, code MarCom WG […]

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2026-06-21 | Yifeng Qin

Pneumatic Fender vs Cone Fender for LNG, FSRU, STS

Engineers planning an LNG berth, an FSRU mooring layout, or a ship-to-ship transfer station usually arrive at the same fork in the road: pneumatic fender or cone fender. The two products are not interchangeable, and picking by feature spec alone is the wrong starting point. The right question is what kind of berth you are […]

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2026-06-16 | Yifeng Qin

SIGTTO Fender Requirements for FSRU Berthing Count

For FSRU berthing, the first question is not always fender size. It is usually the count: how many pneumatic fenders should be arranged along the berthing side before the size calculation starts? Direct answer: SIGTTO fender requirements do not give one fixed number for every FSRU berth. In practice, use at least two pneumatic fenders […]

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2026-06-10 | Yifeng Qin

LNG Carrier Berthing Energy Calculation: Formula & Guide

How do you calculate berthing energy for an LNG carrier? A berthing energy calculation follows PIANC MarCom 211 (2024): Ek = (½ × M × V²) × Ce × Cm. M is laden displacement, V is berthing velocity, Ce is the eccentricity factor, and Cm is the added mass factor. A partial energy factor (γE) […]

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2026-05-24 | Yifeng Qin

Pneumatic Fender Size Chart: ISO 17357 Sizes & GEA/RF Data

Most fender inquiries start with a size question. The vessel class is known, the berthing energy is estimated, but the right fender size is not immediately obvious from a product catalog. Standard pneumatic fenders under ISO 17357-1:2014 range from 500×1000 mm to 4500×12000 mm in diameter × length. Performance is rated at 60% deflection and […]

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2026-05-24 | Yifeng Qin

ISO 17357 Pneumatic Fender Standard: Part 1, Testing & Specs

Most procurement specs reference “ISO 17357” without specifying which part, which fender type, or which inspection clauses apply. The result: ambiguity that leads to mismatched expectations between buyer and manufacturer. ISO 17357 is the international standard for floating pneumatic rubber fenders, published in two parts. Part 1 (ISO 17357-1:2014) governs high-pressure fenders at 50 kPa […]

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2026-05-22 | Yifeng Qin

OCIMF STS Fender Requirements — What Suppliers Must Meet

The OCIMF Ship to Ship Transfer Guide is the governing reference for STS fender selection. But the actual requirements — fender sizes, quantities, velocity assumptions, and calculation methods — are scattered across tables and formulas that many procurement teams never see in full. This article lays out those requirements clearly. The OCIMF STS Transfer Guide […]

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2026-05-21 | Yifeng Qin

How to Select a Pneumatic Fender for LNG Terminal Berthing

Select a pneumatic fender for an LNG terminal in five steps: calculate effective berthing energy using vessel displacement and PIANC MarCom 211 velocity tables, match energy absorption to an ISO 17357-1:2014 standard fender size, verify hull pressure stays within the vessel’s allowable limit, confirm OCIMF and SIGTTO guidance is met, and obtain BV, DNV, or […]

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