Yokohama Dock Rubber Fender/Pneumatic Floating Rubber Fender/Pneumatic ribbed fender

Qingdao Henger Marine Supplies Co., Ltd. specializes in the production of marine airbags and inflatable rubber fenders. We have established long-term cooperative relations with many domestic shipyards, shipowners and trading companies. We also export to Russia, Turkey, Indonesia, Singapore, Philippines, Vietnam and many other countries in the world.

We have provided our company's products for the Bangladesh Navy and the Malaysian Navy. Many friends have traveled thousands of miles to visit our company. They have a very good impression of our company!

If you want to cooperate with us, please contact me:

WhatsApp: +86 15662503695

WeChat: Lxc667381

Email: sales1@hengergroup.com

Qingdao henger pneumatic rubber fender structure

Qingdao henger pneumatic rubber fender consists of four parts.

1. Inflatable rubber fender outer layer glue

The rubber layer covering the outer side of the fender protects the cord layer and the inner lining rubber from abrasion and other external forces, greatly improving the use mission of the product, and also increasing the durability of the product!

2. Line layer

The cord fabric made of high-quality nylon cords, each nylon cord can bear a weight of 50kgs, and each layer of cord fabric is composed of thousands of nylon cords, which greatly improves the durability of the product and also maintains the fender. The internal pressure of the product does not need to be inflated within 60 days!

3. Inner rubber

As for the lining of the rubber membrane, the content of natural rubber in our products is as high as 60%, which is more flexible and puncture resistant. At the same time, it is used to seal the pressurized air in the fender to prevent the product's internal gas from leaking!

4. Flange opening

All of our products are equipped with safety valve devices for the steel flanges installed on the mudguards. After the product is under unbearable pressure, the safety valve opens automatically to prevent product damage.

1. Pneumatic Rubber Fender Features

1. Guaranteed energy absorption
2. Chain tyre net and sling type
3. Thick skin construction
4. Good angular performance
5. Less surface pressure onto the side wall of ships. (The capability of accepting surface pressure of the fender is up to 14 ton/m2).
6. No reduction on the performance of compression when inclined.
7. Suitable for areas with large or small tides.
8. Suitable in cold weather because the compressed air as buffering medium.
9. Especially in mooring of large scale ships in sea docks and lightering.
10. Maintains large clearances between hull and structure

2. Pneumatic Rubber Fender Features

• Meet the requirements of ISO17357:2002
  2. More secure and reliable
  3. Smaller parking force
  4. Adapt to the tide
  5 Low maintenance costs
  6. Low reactivity and Hull pressure
  7. The most cost-effective system
  8. Advantages of reducing shear force
  9. Simple installation and low cost
  10. There are many optional accessories.

3. Pneumatic Rubber Fender Application

1. Oil and gas tankers
2. Fast ferries and aluminum vessels
3. Temporary and permanent installations
4. Rapid response and emergencies
5. In ports with extreme tidal variations
6. For ship-to-ship lightering operations
7. For all navy vessels due to low hull pressure and the advantage of a proportional increase of reaction force and energy absorption

4. Pneumatic Rubber Fender Application

1. large crude oil carrier, VLCC

2. container vessel

3. offshore sea task platform

4. large shipyard and dock

5. large ship and cruise ship

6. army harbor dock

7. large bridge pier

5. Pneumatic Rubber Fender Application

Pneumatic Rubber Fender is constructed of synthetic-cord-reinforced rubber sheets with compressed air inside to keep floating over the water surface and work as a shock absorber between two ships or between ships and berthing structure when they come alongside each other on the water.

Pneumatic Rubber Fender is a leading anti-collision device for marine application in the world today. Pneumatic Fender has become an idea ship protection medium used extensively by large tankers, LPG vessels, ocean platforms, large docks, harbors and wharves.

6. Pneumatic Rubber Fender Application

Pneumatic Rubber Fenders are suitable for many applications including:

1. Tankers, Gas Carries and Bulk Cargo Ships;

2. Fast ferries and aluminum hulled vessels;

3. Temporary of permanent installations;

4. Rapid response and emergency fendering;

5. As stand-off fenders to realign ships with shore facilities.

 

7. Pneumatic Rubber Fender Application

 

4. Product Applications

The are two typical installation type: ship to ship operation and ship to dock operation.

a. ship to ship operation

Generally speaking, two contact points are enough for the light duty ship to ship operation. But 1 or 2 extra pneumatic rubber fender should be used as the primary fender to absorb the berthing energy for the heavy duty ship to ship operation, and keep proper stand-off distance between two ships. Meanwhile, two or more small-size fenders can be hung on the ship hull as the secondary fender.

b. ship to dock operation

Pneumatic fenders are often used for the ship to quay operation because of its excellent performance. The pneumatic fenders are anchored with quay by the guy chain and shackles. Meanwhile, the pneumatic fender can be floated on the water surface depend on the change of tide.

8. Pneumatic Rubber Fender Features

 

1. Safety and Reliability

Boat Rubber Fender are constructed of several layers of strong tire-cord, and are thus resistant to pressure and cutting. The safety factor adopted in the design of this fender is based on accepted theory and has been proven by extensive experimentation. large-size fenders are equipped with a safety valve to release the inside air in the event of accidental over-pressure.

 

2. No Deterioration or Variation in Performance

Boat Rubber Fender utilize the compressive elasticity of air, therefore performance deterioration due to fatigue is absent.

 

3. Advantages at Inclined Berthing

Boat Rubber Fender, energy absorption does not decrease at inclined compression up to 15 degrees.

 

4. Most Cost Competitive System

The utilization of the compressive elasticity of air provides completely uniform surface pressure on contact, making Boat Rubber Fender ideal. The surface pressure of the Boat Rubber Fender is equal to the internal air pressure. Due to low and uniform surface pressure properties, the Henger Pneumatic Rubber Fenders are popular at LNG-ship terminals.

 

5. Soft Reaction Force for Ship and Jetty Structure

The reaction force of Henger Pneumatic Rubber Fenders does not increase sharply, even under excess load conditions. Therefore, the Boat Rubber Fender perform well in such cases, and protect ships and mooring facilities.

 

6. Lower Mooring Forces under Rough Weather Conditions

The reaction force and deflection of Boat Rubber Fender do not easily reach the maximum because the reaction force increases slowly and allowable deflection is wide. Thus, the Henger Pneumatic Rubber Fenders safely protect ships and mooring facilities even under rough weather.

二．Specification and size of inflatable rubber fender

1. Pneumatic rubber fender Parameter

Ship Tonnage(T)	Recommendation SizeD×L(m)	Ship Type
50	0.5*1.0	Fishing ship
100	0.7*1.5~1.0*1.5	Fishing ship
200	1.0*1.5~1.2*2.0	Fishing ship,towing ship
300-500	1.2*2.0~1.5*2.5	Fishing ship,towing ship
1000	1.5*2.5~1.5*3.0	Towing ship,cargo ship
3000	2.0*3.0~2.0*3.5	cargo ship,ocean trawler
10000	2.0*3.5~2.5*4.0	cargo ship

 

 

 

 

2. Pneumatic rubber fender Parameter

 

Pneumatic 50 fender size and performance requirements
Nominal size diameter x length mm	Initial internal pressure kPa	Guaranteed energy absorption (GEA)	Reaction force at GEA deflection(R)	Hull pressure (Internal pressure) at GEA deflection (P)
		Minimum value at deflection 60±5% kJ	Tolerance±10 % kN	Reference value kPa
500 x 1000	50	6	64	132
600 x 1000	50	8	74	126
700 x 1500	50	17	137	135
1000 x 1500	50	32	182	122
1000 x 2000	50	45	257	132
1200 x2000	50	63	297	126
1350 x 2500	50	102	427	130
1500 x 3000	50	153	579	132
1700 x 3000	50	191	639	128
2000 x 3500	50	308	875	128
2500 x 4000	50	663	1381	137
2500 x5500	50	943	2019	148
3300 x 4500	50	1175	1884	130
3300 x 6500	50	1814	3015	146
3300 x 10600	50	3067	5257	158
4500 x 9000	50	4752	5747	146
4500 x 12000	50	6473	7984	154

 

3. Pneumatic rubber fender Parameter

 

Pneumatic 80 fender size and performance requirements
Nominal size diameter x length mm	Initial internal pressure kPa	Guaranteed energy absorption (GEA)	Reaction force at GEA deflection (R)	Hull pressure (Internal pressure) at GEA deflection (P)
		Minimum value at deflection 60±5% kJ	Tolerance±10% kN	Reference value kPa
500 x 1000	80	8	85	174
600 x 1000	80	11	98	166
700 x 1500	80	24	180	177
1000 x 1500	80	45	239	160
1000 x2000	80	63	338	174
1200 x 2000	80	88	390	166
1350 x 2500	80	142	561	170
1500 x 3000	80	214	761	174
1700 x 3000	80	267	840	168
2000 x 3500	80	430	1150	168
2500 x 4000	80	925	1815	180
2500 x 5500	80	1317	2653	195
3300 x 4500	80	1640	2476	171
3300 x 6500	80	2532	3961	191
3300 x 10600	80	4281	6907	208
4500 x 9000	80	6633	7551	192
4500 x 12000	80	9037	10490	202

 

4. Pneumatic rubber fender Parameter

 

Ship Tonnage(T)	Recommendation Size D x L ( m)	Ship Type
50	0.5 x1.0	Fishing ship
100	0.7 x 1.5~1.0 x 1.5	Fishing ship
200	1.0 x 1.5~1.2 x 2.0	Fishing ship, towing ship
300-500	1.2 x 2.0~1.5 x 2.5	Fishing ship, towing ship
1000	1.5 x 2.5~1.5 x 3.0	Towing ship, cargo ship
3000	2.0 x 3.0~2.0 x 3.5	cargo ship, ocean trawler
10000	2.0 x 3.5~2.5 x 4.0	cargo ship
For Small & Middle Size Ship

 

 

 

 

 

 

 

 

 

 

 

 

5. Pneumatic rubber fender Parameter

 

Ship Tonnage (DWT)	Assumed Boarding Speed (M/S)	Effective Kinetic Energy (KN.M)	Fender Size D*L (m)
200000	0.15	1890	3.3 x 6.5
150000	0.15	1417	3.3 x 6.5
100000	0.15	945	3.0 x 5.0
85000	0.17	1031	3.0 x 6.0
50000	0.18	680	2.5 x 5.5
40000	0.20	672	2.5 x 5.5
30000	0.22	609	2.5 x 4.0
20000	0.25	525	2.5 x 4.0
15000	0.26	425	2.5 x 4.0
10000	0.28	329	2.0 x 4.0
5000	0.33	228	2.0 x 3.5
For Large-tonnage Ship

 

6. Pneumatic rubber fender Parameter

 

Fender Size		Compression Amount(60%)		Noumenon Weight (kg)	Weight with Protective Jacket (kg)
D (mm)	L (mm)	Reaction (KN)	Energy Absorption (KNM)
500	1000	64	6	23	35
600	1000	74	8	28	40
700	1000	137	17	58	52
1000	1500	182	32	82	100
1000	2000	257	45	148	152
1200	2000	297	63	167	200
1350	2500	427	102	220	298
1500	2500	499	134	270	300
1500	3000	579	153	318	450
1700	3000	639	191	380	482
2000	3500	875	308	580	890
2000	4000	1000	352	680	1000
2500	4000	1381	663	1064	1180
2500	5500	2019	1131	1268	1380
3000	5000	2422	1357	1980	2388
3000	6000	2906	1293	2400	2690
3300	4500	1884	1175	2380	2617
3300	6500	3015	1814	2980	3000
There are pneumatic rubber fender of 0.05Mpa & 0.08Mpa internal pressure for choice, kindly contact our service consultant for more details and competitive prices. Pneumatic rubber fender size could be customized according to customer requirement. All accessories could be customized according to customers’ requirement or drawings.

 

 

 

RFQ 

 

 

1. "I have a boat, but I don't know how to choose the size of the dock bumper, can you help me?"

Answer: Don't worry. We have more than 20 years of experience. We have a professional technical team that can recommend products suitable for your use according to your needs! You only need to tell me your purpose and your ship's information, and we can recommend the appropriate size and quantity of dock bumpers for you.

 

 

2. "I want to try your dock bumper, but I have never used it, and I don't know how to use it. Can you help me?"

Answer: Please don’t worry, we have a professional service department to serve you. If you have never used it before, we can use online video calls to help you complete the use. At the same time, we also ship the product with the instruction manual. Can solve a big difficulty for you.

 

 

3. "What is the minimum order quantity for your dock bumpers?"

Answer: We do not have a minimum order quantity. We can provide it as long as you need it. If the product you need is one, we can also provide it for you. If you need a lot of products, we will give you a big discount!

 

 

4. "What is the service life of your dock bumper?"

Answer: The design life of our dock bumpers is 6 to 10 years under the condition of product usage specifications.

 

 

5. "How long is the warranty period for your dock bumpers?"

Answer: The warranty period of our dock bumpers is 2 years. If it proves to be our quality problem, we will be responsible for repairing or replacing you with a new dock bumper, and the costs incurred during the replacement will be borne by us!

 

 

6. "What kind of certificates can you provide for dock bumpers?"

Answer: Our dock bumpers can provide CCS, SGS, BV and other certificates.