Yokohama Fender | Pneumatic Rubber Fender Manufacturer

Jerryborg Yokohama-type Pneumatic Fenders

A pneumatic fender is also called a Yokohama rubber fender. It was developed by the Japanese Yokohama Rubber Company in 1958. So, it has other names: 横浜フェンダー または 横浜空気式フェンダー. Yokohama fenders are advanced protective devices used to protect ships and terminal facilities. These Yokohama floating fenders are widely used in marine collision avoidance. When the Yokohama rubber fender is inflated, high-pressure air is injected into it, which allows the inflatable fender to float on the water. These fenders can absorb energy during ship-to-ship (STS) operations or mooring. They provide softer reaction forces to the vessel. And Yokohama fenders are lightweight and easily deflated. Their installation and redeployment are simple.

Unlike traditional elastic rubber fenders such as scrap tires or solid ラバーフェンダー. Yokohama marine fenders have significant advantages. Such as wear-resistant, high energy absorption, low pressure per unit area of the ship, excellent impact resistance, and easy installation. The Yokohama rubber fender has a long service life and low maintenance cost. It is suitable for harsh environments. All Jerryborg Yokohama fenders are fully ISO 17357-1:2014 compliant.

Each Yokohama marine fender is equipped with a tire net and either a sling type or heavy duty chain. It is available in diameters from 500 mm to 4,500 mm and lengths from 1,000 mm to 12,000 mm, and can also be in custom sizes. They can be configured as sling-type or equipped with a heavy-duty chain and tire net for enhanced durability.

原産地	中国・山東省
素材	Natural Rubber
製品名	空気圧ラバーフェンダー
カラー	Black or custom
使用方法	Boats Mooring and Ship Protection
サイズ	カスタマイズサイズ
Initial Internal Pressure	50Kpa 80Kpa
証明書	ISO 17357、BV、SGS、CCS、DNV、ABS、LR
Processing Service	Vulcanization technology
保証	24ヶ月
MOQ	1セット
Packing & Delivery	Vacuum-packed, folded, and transported in containers or on pallets

packing-and-delivery-of-Yokohama-Rubber-Fenders

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Yokohama Fender Structure

A Pneumatic fender mainly includes inner rubber, outer rubber, steel wire mesh, and air valve. All components of Yokohama Fender are combined into a whole after high-temperature vulcanization. So, the pneumatic marine fender has high strength, fatigue, and impact resistance. Also, Yokohama pneumatic Fenders have the advantages of thermal stability and good adhesion.

As a leading Yokohama fender manufacturer in China, Jerryborg Marine also provides custom pneumatic fender design services.

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Rubber Outer Layer: The outer layer of Yokohama Fender is usually made of wear-resistant rubber. It has good corrosion resistance and UV resistance. This layer of rubber skin can effectively absorb and disperse collision energy and reduce impact.

Inner Leak-proof Layer: Inside the rubber, the outer layer is usually leak-proof. Its purpose is to prevent gas leakage. This inner layer is usually made of corrosion-resistant materials with good sealing properties.

Air Valve: The pneumatic fender is equipped with an air valve inside. We use gas valves to regulate and maintain internal gas pressure. You can control the hardness and elasticity of the fender by adjusting the gas pressure. This allows adaptation to different vessel and environmental conditions.

Connectors: The Yokohama pneumatic fender is often equipped with connectors. This makes it easier to connect to a dock or other structure. These connections may be chains, cables, or other suitable connecting devices.

Advantages of Jerryborg Marine yokohama rubber fender

Safety and reliability: Jerryborg Yokohama Rubber Fenders are designed with safety in mind and have a robust construction. This ensures reliable performance in a wide range of mooring conditions and greatly reduces the risk of accidents or damage to vessels and docking structures.

No degradation or change: Our pneumatic fenders perform consistently throughout their service life, providing predictable and continuous protection. What’s more, they are not affected by aging or environmental factors.

Good berthing inclination: Jerryborg rubber fenders offer great flexibility and are particularly suitable for complex berthing situations, such as vessels that need to berth at an angle. It ensures the vessel is protected from damage even if it cannot vertically berth.

Soft reaction force: Jerryborg Yokohama fenders are designed to absorb and disperse the energy of the berthing vessel, reducing the impact on the vessel and the quay. This soft reaction force is essential to prevent damage and maintain the structures’ integrity.

Reduced mooring forces: Our marine pneumatic rubber fenders perform very well in challenging weather conditions. They reduce the stress on mooring equipment, ensuring the safety and stability of moored vessels during storms or high winds.

Against shearing force: in dynamic marine environments, the transverse motion of a ship can place significant shear stresses on a fender system. The design and materials of Jerryborg Yokohama Rubber Fenders make them highly resistant to shearing forces.

Adaptable to the tide: Regardless of the water level, our Yokohama rubber fenders are able to adapt to changes in tide level and maintain their protective function. This self-floating ability will always provide good protection without the need for manual replacement.

Low installation cost: Jerryborg yokohama fenders are designed to be easy to install and extremely low maintenance. This simplicity reduces their overall cost, making them an economical choice for many harbors and marinas.

Low delivery cost: Our Yokohama pneumatic fender fenders are typically shipped folded in containers or pallets. This method of packaging adds to the overall economy of the Fender and gives our products a logistical advantage.

Pneumatic-Yokohama-Rubber-Fenders-Watermark version

Pneumatic-Fender-With-Tire-Watermark-version

Contact Jerryborg for Durable yokohama pneumatic fender !

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Pneumatic Rubber Fender Applications

In a port with dramatic tidal changes
Ship-to-ship ignition operations
Oil and Gas (Typical FSRU)
Temporary berth

Large oil tankers, large dock, large pier
Large dockyards
Offshore platforms, ocean platform
Liquefied gas vessels

Submersible docks
Container ship
Yacht
Military port

Two Main Production Technology of Pneumatic Fender

Integrative Twining Technology

Wrapped pneumatic rubber fenders are manufactured using monolithic winding technology and may not have as smooth a surface as molded pneumatic fenders. As a result, these fenders are also much less expensive, but they still meet the performance standards set forth in ISO 17357. In addition, they are available in sling, chain, and tire mesh types. You can mount truck or aircraft tires on the body of the fender.

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Molded Production Technology

Unlike wrapped Yokohama fenders, molded pneumatic rubber fenders are made using a unique mold. This production technique mirrors the method used by the Yokohama Rubber Company. These fenders have a very smooth surface that improves performance and extends service life, but they are priced higher. They also have a different safety valve than regular pneumatic fenders.

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Standard Yokohama pneumatic rubber fender Sizes

As a professional Yokohama fenders manufacturer, we produce pneumatic fenders with initial pressures of 50kPa (pneumatic 50) and 80kPa (pneumatic 80). All pressure values of our Yokohama rubber fenders fully comply with the requirements of ISO 17357.

Yokohama Pneumatic Fender 50kPa Standard Sizes

IP50	パフォーマンス			Pressure (at GEA) kPa			Pressures		Body Thickness mm	Mooring Chain Diameter mm
Dia. × Length (mm)	Energy (GEA) kJ	Reaction (at GEA) kN	Pressure (at GEA) kPa	Body Only kg	Chain Net (e×cl body) kg	Sling Type	Relief Valve kPa	Proof Test kPa	Body Thickness mm	Mooring Chain Diameter mm
Ø300 × 600L	Energy (GEA) kJ	0.5	24	134	15	–	20	–	200	12	13
Ø500 × 1000L	6	64	132	24	121	35	–	200	12	16
Ø600 × 1000L	8	74	126	28	132	39	–	200	12	16
Ø700 × 1500L	17	137	135	50	165	60	–	200	13	16
Ø800 × 1500L	24	158	132	64	280	72	–	200	14	16
Ø1000 × 1500L	33	182	122	80	220	107	–	200	14	16
Ø1000 × 2000L	46	257	132	97	242	124	–	200	14	16
Ø1200 × 3000L	109	482	134	250	435	280	–	200	14	16
Ø1350 × 2500L	104	427	130	220	385	264	–	200	15	16
Ø1500 × 2500L	125	464	126	243	484	287	–	200	16	19
Ø1500 × 3000L	156	579	132	275	583	319	–	200	16	19
Ø1500 × 4000L	230	815	130	330	690	380	–	200	16	19
Ø1700 × 3000L	195	639	128	319	638	363	–	200	16	19
Ø1700 × 7200L	516	1621	133	760	該当なし	810	–	200	16	22
Ø2000 × 3000L	260	727	122	403	990	469	–	200	16	22
Ø2000 × 3500L	314	875	128	445	1056	502	–	200	17	22
Ø2000 × 4000L	361	1020	125	490	1150	540	–	200	16	22
Ø2000 × 6000L	611	1631	136	658	1650	720	–	200	16	26
Ø2500 × 4000L	676	1381	137	992	1364	1188	175	250	18	26
Ø2500 × 5500L	962	2019	148	1199	2035	1452	175	250	18	32
Ø2500 × 9100L	1631	3482	140	2150	3467	2230	175	250	18	32
Ø3000 × 5000L	1136	2021	154	1520	1800	1640	175	250	19	32
Ø3300 × 4500L	1198	1884	130	1606	1881	2024	175	250	20	36
Ø3300 × 6500L	1850	3015	146	2057	2827	2475	175	250	20	38
Ø3300 ×10600L	3128	5257	158	2816	5126	3366	175	250	22	48
Ø4500 × 7000L	3302	3796	133	3740	4290	3880	175	250	24	48
Ø4500 × 9000L	4847	5747	146	4334	5929	–	175	250	24	50
Ø4500 ×12000L	6602	7984	154	5269	7689	–	175	205	24	58

The data in the table adheres to the ISO 17357 standards.
The Yokohama fender body and net weight can vary by up to ±10%. The net weights reflect Jerryborg’s standard design.
Upon request, we can provide pneumatic fenders in special sizes.

Yokohama Pneumatic Fender 80kPa Standard Sizes

IP80	パフォーマンス			Fender Weight			Pressures		Body Thickness mm	Mooring Chain Diameter mm
Dia. x Length (mm)	Energy (GEA) kJ	Reaction (at GEA) kN	Pressure (at GEA) kPa	Body Only kg	Chain Net (e×cl body) kg	Sling Type	Relief Valve kPa	Proof Test kPa	Body Thickness mm	Mooring Chain Diameter mm
Dia. x Length (mm)	Ø300 × 600L	0.6			17	–	20	–	250	13	13
Ø500 × 1000L	8	85	174	26	121	37	–	250	13	16
Ø600 × 1000L	11	98	166	30	132	42	–	250	13	16
Ø700 × 1500L	24	180	177	52	165	63	–	250	14	16
Ø800 × 1500L	31	204	180	71	280	83	–	250	15	16
Ø1000 × 1500L	45	239	160	84	220	111	–	250	15	16
Ø1000 × 2000L	64	338	174	101	242	129	–	250	15	16
Ø1200 × 2000L	89	390	166	149	352	176	–	250	15	16
Ø1200 × 3000L	140	623	185	275	435	310	–	250	16	16
Ø1350 × 2500L	144	561	170	226	385	270	–	250	17	16
Ø1500 × 2500L	174	610	166	268	484	312	–	250	17	19
Ø1500 × 3000L	218	761	174	339	583	355	–	250	17	20
Ø1500 × 4000L	296	1053	176	363	690	378	–	250	17	20
Ø1700 × 3000L	272	840	168	348	638	392	–	250	17	20
Ø1700 × 7200L	668	2096	170	795	該当なし	845	–	250	18	22
Ø2000 × 3000L	363	955	160	413	990	479	–	200	19	22
Ø2000 × 3500L	438	1150	168	454	1056	520	–	250	19	24
Ø2000 × 4000L	520	1380	173	505	1150	535	–	250	19	24
Ø2000 × 6000L	791	2109	170	724	1650	810	230	300	18	28
Ø2500 × 4000L	944	1815	180	1111	1364	1309	230	300	20	30
Ø2500 × 5500L	1343	2653	185	1670	1800	1850	230	300	21	34
Ø2500 × 9100L	2293	4505	199	2360	3467	2450	230	300	20	38
Ø3300 × 4500L	1673	2476	171	1892	1881	2299	230	300	22	34
Ø3300 × 6500L	2583	3961	191	2420	2827	2827	230	300	22	42
Ø3300 ×10600L	4366	6907	208	3333	5126	3872	230	300	23	54
Ø4500 × 7000L	4608	4988	174	4136	4301	4350	230	300	26	54
Ø4500 × 9000L	6766	7551	192	4818	5929	–	230	300	26	58
Ø4500 ×12000L	9218	14490	202	5863	7689	–	230	300	26	58

The data in the table adheres to the ISO 17357 standards.
The Yokohama fender body and net weight can vary by up to ±10%. The net weights reflect Jerryborg’s standard design.
Upon request, we can provide pneumatic fenders in special sizes.

Properties of Outer and Inner Rubber Material

Yokohama pneumatic fenders based on ISO 17357-1:2014 standard

No.	テスト項目	試験方法	要求値
No.	テスト項目	試験方法	アウターラバー	インナーラバー
1	エイジング前	————-	————-
1-1	引張強度	ISO 37 : 2005	≥18 MPa	≥10 MPa
1-2	伸び	ISO 37 : 2005	≥400 %	≥400 %
1-3	Durometer 硬度 (A type)	ISO 7619 1 : 2004 ISO 7619-1 : 2004	60 ± 10 60 ± 10	50 ± 10 50 ±10
2	After Aging	ISO 188 : 2007	Air oven aging 70±1 , 96 h	Air oven aging 70±1 , 96 h
2-1	引張強度	ISO 37 : 2005	元の財産の80%以上	元の財産の80%以上
2-2	伸び	ISO 37 : 2005	元の財産の80%以上	元の財産の80%以上
2-3	Durometer Hardness (A type)	ISO 37 : 2005	Not to exceed the original property by more than 80%	Not to exceed the original property by more than 80%
3	Tear	ISO 34-1 : 2004	≥400 N/cm	必要なし
4	Compression Set	ISO 815 : 2008	30 % (70±1 for 22 h) or less	必要なし
5	Static Ozone Aging Test	ISO 1431-1 : 2004	No crack after elongation by 20% and exposure to 50 pphm at 40 for 96h	必要なし

Different sizes Pneumatic Rubber Fender

Pneumatic Rubber Fender Types

Type I: Sling Pneumatic Rubber Fender

Sling Pneumatic Rubber Fenders are made from layers of durable rubber. And we reinforce them with synthetic tire cords. This structure makes them resilient and robust. They are air-filled, effectively allowing them to absorb a berthing ship’s kinetic energy. This cushioning effect minimizes the risk of damage during impact. Jerryborg Sling pneumatic rubber fenders offer high energy absorption with a low reaction force. We make them suitable for protecting a wide range of vessel sizes.

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Type II: Pneumatic Fender With Tire & Chain Net

These fenders consist of a pneumatic rubber core. On the outside is a protective mesh made of tires connected by chains. Rubber core absorbs impact energy. The tires and chain mesh provide extra wear resistance. This combination ensures higher energy absorption capacity. It also allows pneumatic fenders to distribute impact forces more evenly. This fender is particularly suitable for harsh marine environments. It is also ideal for various ships, including large cargo ships and oil tankers.

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Type III: Hydropneumatic Fender

Hydropneumatic fenders use air and water in separate chambers to absorb impact energy. They are particularly effective at accommodating vessels that berth at an angle. They provide a softer and more controlled cushioning effect. Hydropneumatic fenders are ideal where a softer berthing process is required. Such as sensitive cargo or delicate hull structures.

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How To Choose a Suitable floating pneumatic rubber fenders For STS Operation?

The marine fender selection procedure for STS operations is outlined below.

First, Consider two ship’ types and sizes. Weather conditions such as Calm, Moderate, and Rough are initially confirmed.
Second: The selections are designed based on Calm weather conditions. If the weather is confirmed as Calm, the Fender system can be simply selected from the tables.

Quick Reference Guide to Yokohama Fender Selection for STS Operations

PETROLEUM, CHEMICALS and LIQUEFIED GASSES
Equivalent Displacement Coefficient (C)	Relative Velocity	Berthing Energy	Suggested Fenders
Tonnes	m / s	Tonnes.m	Diameter × Length (m)	Quanitity
1,000	0.3	2.4	1.0 × 2.0	3 or more
3,000	0.3	7	1.5 × 3.0	〃
6,000	0.3	14	2.5 × 5.5	〃
10,000	0.25	17	2.5 × 5.5	〃
30,000	0.25	40	3.3 × 6.5	4 or more
50,000	0.2	48	3.3 × 6.5	〃
100,000	0.15	54	3.3 × 6.5	〃
150,000	0.15	71	3.3 × 6.5	5 or more
200,000	0.15	93	3.3 × 6.5	〃
330,000	0.15	155	4.5 × 9.0	4 or more
500,000	0.15	231	4.5 × 9.0	〃

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Qualified Pneumatic Rubber Fenders

Jerruborg Marine is a professional Yokohama Fenders manufacturer. And our products meet third-party certifications.

Our certificates include: ISO 17357, BV, SGS, CCS, DNV, ABS, LR.

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repair policy Of our Yokohama Rubber Fender

When you buy our pneumatic fenders, we will equip them with free repair parts. And we provide a detailed maintenance manual. Of course, you can also send it back to us for repair.

How long is your warranty period?

We offer a comprehensive warranty on our pneumatic fenders. The standard warranty period is two years from the date of buy. We ensure that any issues under normal operating conditions will be resolved promptly and efficiently. Please see our Warranty Policy for specific warranty terms and conditions. Or you can contact our customer service team.

How does ISO 17357-1:2014 define?

ISO 17357-1:2014 specifies high-quality marine fenders’ material, performance, and testing requirements. The standard covers various aspects such as size, shape, internal pressure, and durability. These requirements ensure the safety and efficiency of pneumatic fenders. They are essential during mooring or berthing operations.

What's the difference between Yokohama Fenders and pneumatic fenders？

Yokohama Fenders is a specific brand of pneumatic rubber fenders. Yokohama Rubber Company originally manufactured it. This type of marine fender is widely used in offshore applications. Pneumatic fenders generally use air as the main component to absorb energy. It is suitable for ship berthing and terminal operations. Essentially, Yokohama fenders fall into the category of aerodynamic fenders. Both types of marine fenders are known for their quality and reliability in marine environments.

Were your pneumatic fenders made by model?

No, we use Integrative Twining Technology. This method often involves a complex web of reinforcing layers. It can enhance the strength and durability of the fender. This reinforcement makes the fender more resistant to wear, tear, and punctures. This design can be adapted to produce fenders of various sizes and shapes. It can meet specific requirements. These fenders can sometimes be easier to repair due to their layered construction.