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100% Natural Rubber Gas Marine Rubber Airbag For Sunken Ship Salvage

Key Attributes
Brand Name: Henger
Model Number: HE-MA
Place of Origin: China
Certification: CCS ABS LRS ISO
Minimum Order Quantity: 1 pc
Price: $200-500/pc
Supply Ability: 100pcs/week
Delivery Time: 7-10 working days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Standard Packaging: nude packing

Product Summary

High Strength 100% Natural Rubber Gas Bag Marine Salvage Airbag for Sunken Ship Salvage Inflatable Marine Rubber Airbag Introduction 6000 years ago, our ancestor begin to use log-rolling method to lift and move weights, which is still widely used in daily production and actual life nowadays. Marine ...

Product Custom Attributes

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boat lift float bags

,

inflatable boat lift bags

Material:
100% Natural Rubber
Color:
Black
Working Pressure:
0.05-0.4Mpa
Diameter:
0.5-2.5m
Length:
5-20m
Warranty:
12-24months
Production Standard:
CB/T-3795, CB/T-3837, ISO14409
Layers:
5-12 For Selection
Service Life:
6-10 Years
Key Word:
Sunken Ship Salvage
Product Description

High Strength 100% Natural Rubber Gas Bag Marine Salvage Airbag for Sunken Ship Salvage

 

Inflatable Marine Rubber Airbag Introduction

 

6000 years ago, our ancestor begin to use log-rolling method to lift and move weights, which is still widely used in daily production and actual life nowadays. Marine rubber airbag is designed with soft rubber to lift and carry weights, based on log-rolling method.

 

Marine rubber airbag is an innovative product of Chinese own proprietary intellectual property rights. It has wide application like ship launching & upgrading, caisson lifting & moving, heavy weights lifting, underwater-engineering buoyancy aid. The marine rubber airbag is not limited to space and heavy machinery, which could efficiently shorten the construction period and save lots of funds.

 

Inflatable Marine Rubber Airbag Application

100% Natural Rubber Gas Marine Rubber Airbag For Sunken Ship Salvage 0

 

1. Ship Launching & Upgrading
With more than 20 years development in China, marine rubber airbag is proved to be the most reliable and stable technique for ship launching & upgrading. It is applicable from tons of flat board to ten thousand tons of huge ship. Meanwhile, marine rubber airbag is also widely acknowledged by foreign dockyards, shipyards, port/harbour construction companies. Ship launching & upgrading technique with marine rubber airbag is also highly promoted in the markets, such as America, Europe, Southeast Asia.

 

100% Natural Rubber Gas Marine Rubber Airbag For Sunken Ship Salvage 1

 

2. Weight lifting & moving
Marine rubber fend could be applied to caisson lifting, launching, moving and transporting in port constructing projects.

 

100% Natural Rubber Gas Marine Rubber Airbag For Sunken Ship Salvage 2

 

3. Buoyancy Aid & Salvage
Because marine rubber airbag has buoyancy force and load-bearing capacity, it is also widely used in sunken vessel salvage and Buoyancy Aid.

 

100% Natural Rubber Gas Marine Rubber Airbag For Sunken Ship Salvage 3

100% Natural Rubber Gas Marine Rubber Airbag For Sunken Ship Salvage 4100% Natural Rubber Gas Marine Rubber Airbag For Sunken Ship Salvage 5100% Natural Rubber Gas Marine Rubber Airbag For Sunken Ship Salvage 6

 

Inflatable Marine Rubber Airbag Technical Requirement

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According to CB/T 3795--1996, marine rubber fender should meet the following requirements.

1. Dimensional Deviation

Diameter & Effective Length Deviation: ±2%

Total Length Deviation: ±4%

2. Amount of Elastic Deformation: diameter deformation amount ≤ 5% under 1.2 times working pressure.

3. Safety Factor: >4.5

4. Air Tightness: depressurization < 5% after 1hour inflation

5. Surface Quality: fairing line shape, no crack, no bubble, no double skin, no impurities, no distinct dirt and other apparent defect.

6. end part anti-explosion design

 

Inflatable Marine Rubber Airbag Product Features

100% Natural Rubber Gas Marine Rubber Airbag For Sunken Ship Salvage 8

 

1. High bearing capacity

Inflatable rubber airbag’s main technical requirement is regulated in CB/T 3795--1996 published by China State Shipbuilding Corporation.

Henger adopts new rubber formula and high-strength enhanced synthetic-tyre-cord layer, which improves the airbag’s bearing capacity two times more than CB/T 3795--1996 standard

 

2. High kneading-resistance capability

When the airbag is rolling under the ship bottom, it will suffer a “kneading force” from ship bottom and ground because of not uniform rolling speed, which could case problems like delamination, layer buckling, etc.

Henger improved the manufacturing technique and raw material formula to strengthen kneading-resistance capability of the airbag and avoid worse accident .

 

3. New anti-explosion design of end part

The possibility of air leakage in the joint area of metal part and rubber part is also increasing as working pressure of airbag is added. After using for times under high working pressure, the airbag would burst and metal part would hurt workers.

Henger invented new anti-explosion design of the airbag end part, increasing the bonding strength and air tightness between rubber body part and end metal part. Henger airbag is working very well under higher working pressure without potential safety hazard.

 

4. Optimizing structure configuration

Henger built a strength and Intensity Model to test compression performance, stress intensity and direction. After testing for many times, we got the stress changeing regularity and optimized structure configuration design. The new optimized airbag successfully passed blasting experiment and achieved good performance in practical use.

 

5. Good Abrasion-resistance performance and high ageing resistance

The airbag is working under bad and poor condition, suffering from long time sunlight exposure, seawater corrosion, impurities pollution, etc. The surface of airbag must be equipped with high capability of abrasion resistance, ageing resistance, corrosion resistance.

Henger airbag is made of natural rubber with special ingredients and unique manufacturing method. The finished airbag could working very well under above mentioned bad and poor working condition.

 

6. Higher flexibility and shock absorption capability

Henger airbag is manufactured with unique integral twining technique. The airbag wall thickness is uniform with secondary seam in overlap joint. When rolling in slope and uneven ship path, the flexible airbag is helpful to reduce structure stress and ship launching risk.

 

 

Inflatable Marine Rubber Airbag Technical Parameter

Model D(m) P(Mpa) Working Height(m) Unit Bearing Capacity(ton/m)
0.4D 0.5D 0.6D 0.4D 0.5D 0.6D
S1

 

S10

0.8 0.20 0.32 0.40 0.48 15.1 12.6 10.0
1 0.16 0.40 0.50 0.60 15.1 12.6 10.0
1.2 0.14 0.48 0.60 0.72 15.8 13.2 10.6
1.5 0.11 0.60 0.75 0.90 15.5 13.0 10.4

 

S11

0.8 0.19 0.32 0.40 0.48 14.3 11.9 9.5
1 0.15 0.40 0.50 0.60 14.1 11.8 9.4
1.2 0.13 0.48 0.60 0.72 14.7 12.2 9.8
1.5 0.10 0.60 0.75 0.90 14.1 11.8 9.4

 

 

S12

0.8 0.24 0.32 0.40 0.48 18.1 15.1 12.1
1 0.19 0.40 0.50 0.60 17.9 14.9 11.9
1.2 0.16 0.48 0.60 0.72 18.1 15.1 12.1
1.5 0.13 0.60 0.75 0.90 18.4 15.3 12.2
1.8 0.10 0.72 0.90 1.08 17.0 14.1 11.3
S2

 

 

S20

1 0.24 0.40 0.50 0.60 22.6 18.8 15.1
1.2 0.20 0.48 0.60 0.72 22.6 18.8 15.1
1.5 0.16 0.60 0.75 0.90 22.6 18.8 15.1
1.8 0.13 0.72 0.90 1.08 22.0 18.4 14.7
2 0.12 0.80 1.00 1.20 22.6 18.8 15.1

 

 

S21

1 0.27 0.40 0.50 0.60 25.4 21.2 17.0
1.2 0.23 0.48 0.60 0.72 26.0 21.7 17.3
1.5 0.18 0.60 0.75 0.90 25.4 21.2 17.0
1.8 0.15 0.72 0.90 1.08 25.4 21.2 17.0
2 0.14 0.80 1.00 1.20 26.4 22.0 17.6

 

 

S22

1 0.31 0.40 0.50 0.60 29.2 24.3 19.5
1.2 0.26 0.48 0.60 0.72 29.4 24..5 19.6
1.5 0.20 0.60 0.75 0.90 28.3 23.6 18.8
1.8 0.17 0.72 0.90 1.08 28.8 24.0 19.2
2 0.15 0.80 1.00 1.20 28.3 23.6 18.8
2.5 0.12 1.00 1.25 1.50 28.3 23.6 18.8
S3

 

 

S30

1 0.35 0.40 0.50 0.60 33.0 27.5 22.0
1.2 0.29 0.48 0.60 0.72 32.8 27.3 21.9
1.5 0.23 0.60 0.75 0.90 32.5 27.1 21.7
1.8 0.19 0.72 0.90 1.08 32.2 26.8 21.5
2 0.17 0.80 1.00 1.20 32.0 26.7 21.4
2.5 0.14 1.00 1.25 1.50 33.0 27.5 22.0

 

Packing & Delivery

100% Natural Rubber Gas Marine Rubber Airbag For Sunken Ship Salvage 9

* all packing method and shipping method of inflatable marine rubber airbag are done as per to csutomer's requirement.

 

Company Introduction

 

Qingdao Henger Marine Supply Co., Ltd

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Lies in Qingdao, a beautiful coastal city with red tiling and green trees, blue sea and clear sky, Qingdao Henger Marine Supplies Co., Ltd is a high-tech enterprise integrated with manufacturing, research and innovation, technical services, specialized in manufacturing marine products, such as marine rubber fender, marine airbag, navigation mark and marine buoy. All products get ISO 9001-2008 certificate and IACS quality authentication from CCS, BV, GL, ABS, LG, etc.

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With strong technology base, advanced manufacturing technique, complete manufacturing facilities and well-equipped checkout equipment, Qingdao Henger Marine Supplies Co., Ltd is devoted to forge itself into a top-ranking international competitive marine products manufacturer providing high quality products and perfect service for all customers, and shoulder the responsibility of ensuring global marine safety via mutually beneficial cooperation with friends all over the world.

 

 

100% Natural Rubber Gas Marine Rubber Airbag For Sunken Ship Salvage 12

 

 

FAQ

 

Q: What’s the material of your pneumatic fender products ?
A: the main raw materials are natural rubber, synthetic-tyre-cord fabric and customized hardwares, etc.


Q: Are you factory or trading company ?
A: We are manufacturing factory, located in Jimo district,Qingdao city, 1 hour drive to Qingdao port and 40 minutes drive to Qingdao airport, which is convenient in transportation logistics.


Q: Is OEM service available ?
A: yes


Q: What’s the delivery time and payment terms ?
A: Delivery time is based on product model and order quantity. normally it is around 7-15 working days.

The payment could paid by T/T, L/C, Western Union, Paypal, etc.

 

Q: What is your company address and contact information ?

A: Qingdao Henger Marine Supply Co., Ltd

Address: Jinkou Industry Park, Jimo District, Qingdao City, Shandong Province, China

Post Code: 266200

Tel: +86-0532-58913181

E-mail: anna@hengergroup.com;

 

Overall Rating
5.0
Based on 50 reviews recently
Rating Snapshot
5
100%
4
0%
3
0%
2
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1
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All Reviews
L
Lydia from Mexico
Apr 28.2026
I bought from other suppliers before and had leakage issues – not with this one. First‑class rubber material, fine workmanship. The factory is strong, providing all qualifications and documents, and they clearly support third‑party inspection. Worth every penny!
B
Bob from Thailand
Jan 13.2026
We have been cooperating for four years, making purchases every quarter, and our clients are very satisfied with products.
S
Siena from Australia
Dec 30.2025
Superb quality! The rubber airbag has a smooth, bubble‑free surface and excellent air‑tightness after inflation. The factory is very professional – full documentation from production to delivery, and they proactively support third-party inspection. Unbeatable value for the performance and price
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