D Type Marine Pneumatic Rubber Fender For Boats Rubber Dock Fender

Introduction of inflatable rubber fender

Qingdao Henger Ship Supplies Co., Ltd.

1. Pneumatic rubber fender introduction

 

1 Outer rubber

The outer rubber layers that covers the outside of fender protects the cord layers and the inner rubber from abrasion and other external forces. This compound has sufficient tensile and tear strength to withstand any weather condition and hard usage. Standard color is black, but other colors are available on request.

 

2 Inner rubber

The liner of a rubber membrane seals the pressurized air inside the fenders.

 

 

3 Synthetic tire cord layers for reinforcement

The reinforcement layers, which are made of synthetic tire cord commonly used in tires, are arranged at ideal angles to hold the internal pressure and to distribute the stress evenly providing strong efficient reinforcement.

 

4 Beading ring

A steel ring is placed at one end (or both ends) of the fender and holds the end of cord layers.

 

5 Flange

A steel flange is mounted on the fender, to which an air valve or safety valve can be adapted.

 

6 Safety valve

Fenders of diameter 2500mm and larger shall be equipped with safety valve for releasing excess internal pressure when the fenders are over-compressed accidentally. Fender which are smaller than 2500mm in diameter, can be equipped with a safety valve if required.

 

7 Metal accessories

All the relevant metal accessories of pneumatic fenders, include shackles, towing rings, swivels, chain net, are made of stainless steel, which are resistant for sea water corrosion.

 

2. Pneumatic rubber fender introduction

Inflatable rubber fender (by ball) is a marine anti-collision product made of compressed air. Compressed air is mainly used as the buffer medium to absorb the impact energy of the ship, making the ship more flexible and soft when docking, so as to achieve the effect of collision and collision avoidance. Yokohama type ball is a kind of sheath type ball. Usually aircraft tires or engineering tires are used to wrap the ball. Both ends are equipped with shoulder straps, which are widely used for ship-to-ship transfer operations and ship berthing operations. Wait. The size is: D0.5m x L1.0m ~ D3.3m x L6.5m. Inflatable fenders (by ball) are produced in strict accordance with ISO17357-2002 and GB/T 21482-2002 international quality standards, and their products are exported to all over the world.

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

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

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.

Ship Tonnage (T)	Recommendation Size D X L (m)	Ship Type
50	0.5 x 1.0	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

Ship Tonnage (DWT)	Assumed Boarding Speed (M/S)	Effective Kinetic Energy (KNM)	Fender Size D x 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

 

3. 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

Comparison of Henger Pneumatic Rubber Fender​ and traditional elastic rubber fender:
1. High impact energy absorption, low impact force on the ship
2. Simple installation
3. Good elasticity, no deformation under the action of compression
4. Lightweight, practical and economical

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.

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

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.

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.

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.

5. Company Introduction

Qingdao Henger Marine Supplies Co., Ltd. has long been committed to the product development, production and sales of lifting and moving airbags, inflatable rubber fenders (by ball), and solid polyurethane fenders for the upper and lower discharges of ships. Testing equipment, strict quality management system, the product selection of high-quality materials and special explosion-proof technology, smooth appearance, wear resistance, aging resistance, good air tightness, high strength, long service life, excellent quality, and passed ISO9001: 2000 international quality management system certification, and China Classification Society (CCS) quality certification, and exported to the United Kingdom, Italy, Germany, Pakistan, Malaysia, Singapore, South Korea and other countries and regions, and provide product services for large-scale national construction (Rubber fender, handling air bag, air bag mandrel).
Rubber fender is one of the inflatable fender products and one of the most advanced fender products in the world. It uses compressed air as a buffer medium to absorb the impact energy of the hull, which is similar to the general compressed rubber fender products. It has a special air-impact function, so it is an ideal protective equipment for ships when berthing at sea and port terminals.

                                                         After-sale service

 

Quality is the cornerstone, service is the soul. We continue to provide our customers with stable & reliable quality pneumatic rubber fenders with a comprehensive system of technical support, meticulous and thoughtful after-sales service to win customers trust and satisfaction. Qingdao Henger Shipping Supplies Co., Ltd provides following services to all customers.

1. 24 hours instant online technical consultation and support.

2. 24 months warranty period(without any artificial damage) and free repairing service within warranty period.

3. lifetime reparing service.

 

 

 Company brief introduction

 

This is the main product of our company:

 

• Pneumatic rubber fender

2. Marine rubber airbag

3. Foam filled fender

4. D-type rubber fender

5. Cylindrical fender

6. Bollard

7. Highway road barrier

 

Choose our advantages:

 

• We have our own production workshop, the production time is decided by ourselves, so we can freely adjust the delivery time.
• As a factory, we can communicate with me directly on production technology issues, which improves the communication efficiency.

We are a manufacturer, no traders make the difference, and the price advantage is obvious.

 

If you have requirements please send the details:

 

• Product type and quantity
• Product size

• FOB or CIF is required, where is the destination port.

 

What I will offer you:

• The most competitive price
• The most active and professional service
• The most timely reply