Sling Type Pneumatic Fender

NANHAI PNEUMATIC FENDER

Sling type pneumatic fender is without chain tire net compare to Net type pneumatic fender. Its advantage is lighter weight and easier operation. Sling type pneumatic fender also have different initial internal pressure in 50kPa and 80kPa which manufactured should be according to ISO 17357-1:2014.

Sling type pneumatic fender Diameter from 0.5m-4.5m, Length from 1m-12m. Above 2.5m diameter fender will equipped safety valve. Traditional pneumatic fender structure has outer rubber layer part,synthetic tire cord part and inner rubber layer part. Based on actual application scenarios and improving the safety factor, NANHAI not only strives for perfection in raw materials, but also optimizes the structure and production technology to make it have higher safety and reliability.

Nearly 20 years of R&D and production of pneumatic fenders, adhering to the spirit of craftsmanship, focusing on details, pursuing excellence no matter where customers can see or not, in order to make better products.

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NANHAI PNEUMATIC FENDER

Pneumatic Fender Classification

Pneumatic Fender Series: Sling Type I Chain Tyre Net Type I Hydro Pneumatic Fender.

Pneumatic Fender-Sling Type

Initial internal pressure 50kPa/80kPa
Diameter:500-5000mm (Fender Body Only)
Length:500-9000mm (Fender Body Only)
Diameter ≥ 2500mm equipped with safety vlave

Pneumatic Fender-Heavy Duty Chain Tyre Net Type

Initial internal pressure 50kPa/80kPa
Diameter:500-5000mm (Fender Body Only)
Length:500-9000mm (Fender Body Only)
Truck/Aircraft Tires Optional
Diameter ≥ 2500mm equipped with safety vlave

Hydro Pneumatic Fender

The Hydro pneumatic Fender is a special version of the Pneumatic Fender developed for submarines. Hydro pneumatic Fenders are partially ﬁlled with water and air and are equipped with a counterweight in order to keep them in a vertical position. This ensures that the submerged hull is properly protected by the fender at all times.Know More...

NANHAI PNEUMATIC FENDER

Advantages and Benefits

“Invisible Sight” still maintain ingenuity. NANHAI always insists on producing advanced quality products to fully protect the safety of hulls.

ISO 17357-1:2014

ISO 17357-1:2014 specifies the material, performance, and dimensions of high-pressure floating pneumatic rubber fenders. It also specifies the test and inspection procedures for pneumatic rubber fenders. NANHAI pneumatic fender performance fully comply and exceed ISO 17357.

Safety and Reliability

The safety factor adopted in the design of NANHAI pneumatic fender is based on accepted theory and has been proven by extensive experimentation. NANHAI Pneumatic fender safety factor exceed 7 times.Higer than ISO17357 standard

Inclined Berthing

In the case of solid rubber fenders or foam fenders rated reaction force and energy absorption decreases considerably at inclined compression compared with parallel compression.But for pneumatic fenders energy absorption does not decrease at inclined compression up to 15 degrees.

Soft Reaction Force

The reaction force of pneumatic fenders does not increase sharply even under excess load conditions .Protect ships and mooring facilities. In contrast the reaction force of solid rubber fender increases sharply under excess load conditions.This often leads to damage of the ship and mooring facilities.

Lower Mooring Force

The reaction force and deflection of rubber fenders under rough weather conditions easily reaches their respective maximums.Therefore repeated compression with shearing force resulting from the movement of ships causes fatigue and often damages rubber fenders.But the reaction force and deflection of pneumatic fenders do not easily reach the maximum because the reaction force increases slowly and allowable deflection is wide.

Shearing Force Absorbed

Ship is usually shifted to the correct mooring position.The shifting exerts shearing and compression forces on the fenders.This combined force is very severe in the case of rubber fenders because they are not reinforced against such force. In contrast, pneumatic fenders are adequately reinforced using strong tire-cord to cope against such forces as well as internal pressure.

Tide Adaptable

Pneumatic fenders basically float on the water in an unrestricted vertical plane corresponding to the tidal range and ship's vertical movement.This means that energy absorption always takes place at the most suitable position.

Easier installation

The weight of pneumatic fender is supported by the water on which it floats.Therefore, the fender can be moored simply by means of a guy rope or chain requiring minimal extra cost.

Low Maintenance Cost

Maintenance cost is very low.Although the internal pressure will vary with seasonal changes, the air leakage is so minimal that it is sufficient to check the air pressure only once a year.

NANHAI PNEUMATIC FENDER

Unique Fender Structure

Pneumatic Fender Structure Fender Body Structure I Chain Tyre Net Structure

Basic pneumatic fender body construction consists of three parts: Outer rubber layer part, Cord layers part and inner rubber layer part. On the basis of the normal fender structure, NANHAI innovates and upgrades fenders, optimizes the structure to four parts,an air-tightness layer part is added (Reinforcement Layer Part).Greatly improved the airtightness performance and strength of pneumatic fender.

1Outer Rubber Layer Part

I Mechanical protection (Friction)
I Chemical Resistance (Environment)
I Energy dissipation

2Synthetic Tire Cord Layer Part

I Carry load of membrane force
I Keep the geometry stable

3Rubber Matrix Part

I Adhesion to reinforcement material
I Distance layer of fabric plies
I Shearing force loading

4Air Tightness Layer Part

I Strengthen air tightness
I Reinforces rubber & tire cord plies

5Inner Rubber Layer Part

I Pressure transfer
I Ensure air tightness
I Provides chemical resistance

A. Fender Sling Part
B. Fender Sling Part
1. Fender Flange System
2. Shackle
3. Swivel Ring

NANHAI PNEUMATIC FENDER

Advantage Analysis Report

which is helpful for users to quickly and accurately understand market products.

High Strength Tire Cord Material

The strength of pneumatic fender mainly comes from synthetic tire cord layer. NANHAI adopt 3-Strands tire (General adopt 2-Strands) as skeleton material to ensure fender strength.“Invisible Sight” NANHAI still maintain ingenuity. Provide high-strength support and bearing force for fenders.

Safety Valve Structure

Unreasonable safety valve design cannot quickly release pressure in emergency situations, which can easily lead to serious consequences of fender bursting. NANHAI self-developed and designed safety valve has a number of unique patents, as a vital insurance measure which can quickly and accurately release pressure in emergency situations.

Chain Tire Net Structure

Pneumatic fender chain tire net has many difference in design and structure, but the reasonable structure design and quality of all accessories determines whether the fender under truly protected. NANHAI chain tire net arrangement even and reasonable no matter fender head or body.Net density reach at least 70% of fender.

Combined Inflatable Valve

Diameter is bigger,at least 50% increase in inflation efficiency. More importantly,even if valve core is damaged due to improper operation by the user, it is only necessary to replace the top accessories.The design and structure of inflation valve are often overlooked by users.Once the inflation valve is damaged (One-piece Inflatable Valve Structure), fender will be unusable any longer.

NANHAI Pneumatic Fender Advantage Analysis_PDF_file 2

Pneumatic Fender Advantage Analysis Report

Pneumatic fenders developed in 1950s, with a history of more than 60 years, NANHAI has been deeply engaged in the field of pneumatic fenders for nearly 20 years. In the past 20 years, continued to focus on the production crafts and continuously improve the performance of fenders, thus deriving THIRD- GENERATION of fender products and applying them to market.

For the THIRD-GNERATION pneumatic fender of NANHAI, we compared and analyzed them with various products on the market, and summarized the "NANHAI Pneumatic Fender Advantage Analysis", which is helpful for users to quickly and accurately understand market products.

NANHAI PNEUMATIC FENDER

Fender Technical Parameter

50kPa,80kPa Pneumatic Fender Technical Parameter I Fender Rubber Physical Properties

Initial internal pressure 50kPa

DxL (mm)	GEA (KJ)	Reaction force at GEA (kN)	Hull pressure at GEA (kPa)
500 x 1000	6	64	132
700 x 1500	17	137	135
1000 x 1500	32	182	122
1000 x 2000	45	257	132
1200 x 2000	63	297	126
1350 x 2500	102	427	130
1500 x 3000	153	579	132
1700 x 3000	191	639	128
2000 x 3500	308	875	128
2000 x 4500	/	/	/
2500 x 4000	663	1381	137
2500 x 5500	943	2019	148
3300 x 4500	1175	1884	130
3300 x 6500	1814	3015	146
3300 x 10,600	3067	5257	158
4500 x 9000	4752	5747	146
4500 x 12,000	6473	7984	154

Initial internal pressure 80kPa

DxL (mm)	GEA (KJ)	Reaction force at GEA (kN)	Hull pressure at GEA (kPa)
500 x 1000	8	85	174
700 x 1500	24	180	177
1000 x 1500	45	239	160
1000 x 2000	63	338	174
1200 x 2000	88	390	166
1350 x 2500	142	561	170
1500 x 3000	214	761	174
1700 x 3000	267	840	168
2000 x 3500	430	1150	168
2000 x 4500	/	/	/
2500 x 4000	925	1815	180
2500 x 5500	1317	2653	195
3300 x 4500	1640	2476	171
3300 x 6500	2532	3961	191
3300 x 10,600	4281	6907	208
4500 x 9000	6633	7551	192
4500 x 12,000	9037	10490	202

NANHAI PNEUMATIC FENDER

Selected References

Parts of Pneumatic fender projects. If want to know more,please contact us.

RUSSIA I STS OPERATION I OIL

Application: Ship to Ship Operation
Quantity: 36 Pcs
Model: D.4.5m*L.9m
Type: Aircraft Tire Chain Net Type (50kPa)
Country: Russia
Year: 2022

CHINA I SHIP TO SHORE

Application: Ship to Shore
Quantity: 12 Pcs
Model: D.2.5m*L.4m
Type: Aircraft Tire Chain Net Type (50kPa)
Country: China
Year: 2019

TANZANIA I STS OPERATION I MINERAL

Application: Ship to Ship Operation
Quantity: 14 Pcs
Model: D.4.5m*L.6.5m
Type: Aircraft Tire Chain Net Type (50kPa)
Country: Tanzania
Year: 2021-2022

BRAZIL I STS OPERATION I OIL

Application: Ship to Ship Operation
Quantity: 25 Pcs
Model: D.4.5m*L.6.4m
Type: Truck Tire Chain Net Type (80kPa)
Country: Brazil
Year: 2020

NETHERLANDS I BERTHING

Application: Ship Berthing
Quantity: 10 Pcs
Model: D.2.5m*L.5.5m
Type: Sling Type (50kPa)
Country: Netherlands
Year: 2018

GREECE I BERTHING

Application: Ship Berthing
Quantity: 6 Pcs
Model: D.1.5m*L.3m
Type: Aircraft Tire Chain Net Type (50kPa)
Country: Greece
Year: 2016

NANHAI PNEUMATIC FENDER

Cooperation Partner

NANHAI sales network covers more than 70 countries from 7 continents, and has been highly praised by the market and customers. Which has become a world-class leading manufacturer of pneumatic fenders.

NANHAI PNEUMATIC FENDER

Certifications

DNV-GL ISO17357-1:2014

BV (Bureau Veritas)

ABS (American Bureau of Shipping)

LR (Lloyd's Register)

CCS (China Classification Society)

SGS

NANHAI PNEUMATIC FENDER (FAQ and Market info.)

1NANHAI is the manufacturer ?

NANHAI is the international leading pneumatic fender manufacturer. Nearly 20 years experience of design, research development and production. Own the high brand reputation.

2NANHAI pneumatic fender comply with ISO 17357-1:2014 ?

NANHAI fully comply and exceed the standard of ISO 17357-1:2014, has the third party certification from DNV-GL.

3How about the service life of NANHAI pneumatic fender ?

NANHAI pneumatic fender design life can reach 15 years. According to different application environments, the actual application life can reach 8-15 years.

4How about the fender delivery time ?

In order to satisfied the fastest delivery time of customers, NANHAI has the stocks for standard model, which can be shipped immediately.

5How do customers correctly understand the size of the fender ?

For example: 3.3m*6.5m pneumatic fender which means that only the size of fender body reaches 3.3m*6.5m, if chain tire net be added, it will exceed 3.3m*6.5m. Therefore, customer needs to make it clear in the technical drawing, in case the size of the purchased fender is insufficient.

6Does higher natural rubber content make the fender performance better ?

The senior rubber engineer made it clear that it is not higher natural rubber content make the rubber performance better,but to make the proportion of natural rubber reach the best ratio, so that the performance of production can reach the best state.

7Does heaviest pneumatic fender mean the higher performance ?

After long-term testing and application of fenders, not the heaviest product represents the highest quality performance.The factors that will cause the pneumatic fender to be much more heavy: (1) The content of natural rubber is insufficient.Use scrap to satisfied the weight of fender. (2) To achieve performance,the recycled rubber material content is high.We call it counterweight rubber. (3) Fewer tire cord layers, thus increasing the proportion of rubber.

8Why some fenders are covered with white powder and looks like used one ?

As we all know, talcum powder is widely used in chemical industries such as rubber, plastics, paints, and coatings. Talcum powder is used in the production process of pneumatic fenders by taking advantage of its slippery, soft and dry characteristics to prevent the adhesion between the layers and make it easier to operate and produce. So all manufacturers believe that the application of talcum powder is inevitable, but ignore the disadvantage to use talcum powder in the production process: (1) Insufficient on bonding strength. (2) Insufficient Air tightness Performance. (3) Poor Production Environment. (4) The poor appearance quality, covered with white powder, looks dirty and like a second-hand fender. According to our persistent belief in high-quality products, NANHAI's technical research and development team has already started to study the production process of removing talcum powder, and immature products cannot be introduced to the market, so NANHAI's R&D team has been researching this process day and night. Through repeated type examination to verified the feasibility, safety and stability of the process, and decided to bring it to the market. NANHAI's subversive research and development capabilities and innovation capabilities have carried out an unprecedented "REVOLUTION" in the production process of pneumatic fender, becoming the first one in the world for the improvement of this production process.NANHAI pneumatic fender evolution to M NHP-P-4P2S 3.0