Quality BV Certified Marine Rubber Airbag and Pneumatic Rubber Fender with 4-25m Length and 6-8 Years Useful Life factory

BV Certified Marine Rubber Airbag and Pneumatic Rubber Fender with 4-25m Length and 6-8 Years Useful Life

Key Attributes

Brand Name: Henger

Certification: BV, DNV, ABS, CCS, DNV, ISO9001

Minimum Order Quantity: 1

Supply Ability: 8pcs/day

Delivery Time: 10-15days

Payment Terms: T/T

Standard Packaging: Pallet

Product Summary

High Quality Marine Rubber Airbag Marine Rubber Airbags are innovative products with Chinese independent intellectual property rights, primarily used for ship launching and landing, weight lifting, handling, and underwater buoyancy assistance. These products require minimal space and no large ...

Product Custom Attributes

Material:

Rubber

Certificate:

BV, CCS, ABS, DNV

MOQ:

1

Warranty:

2 Years

Length:

4-25m

Color:

Black

Useful Life:

6-8years

Package:

Pallet

Product Description

High Quality Marine Rubber Airbag

Marine Rubber Airbags are innovative products with Chinese independent intellectual property rights, primarily used for ship launching and landing, weight lifting, handling, and underwater buoyancy assistance. These products require minimal space and no large mechanical equipment, significantly reducing work periods and saving costs. Through years of development, marine rubber airbags have become safer, more effective, and environmentally friendly.

Manufacturing Technology

Whole Intertwine Technology

HENGER Airbags feature a cross whole intertwine technology for the frame structure, providing superior strength, clear texture, no joints, and higher load capacity. This technology offers over 20% greater bearing capacity compared to lap technology.

Framework Structure

HENGER airbag structure consists of outer rubber and synthetic cord reinforced rubber layers. The design features a central cylindrical body with tapered ends. Available cord layers: 4, 5, 6, 7, 8, 9, 10, 11, and 12 layers.

Marine Rubber Airbag Introduction

Based on the ancient log-rolling method used for over 6000 years, marine rubber airbags utilize soft rubber technology to lift and carry heavy weights. These innovative products have wide applications in ship launching & upgrading, caisson lifting & moving, heavy weight lifting, and underwater engineering buoyancy assistance.

Marine rubber airbag in industrial application

Technical Requirements

According to CB/T 3795-1996, marine rubber fenders must meet the following specifications:

Dimensional Deviation: Diameter & Effective Length ±2%, Total Length ±4%
Amount of Elastic Deformation: ≤ 5% diameter deformation under 1.2 times working pressure
Safety Factor: >4.5
Air Tightness: < 5% depressurization after 1 hour inflation
Surface Quality: Fair line shape, no cracks, bubbles, double skin, impurities, or apparent defects
Anti-explosion design of end part

Product Applications

Marine Rubber Airbags (also known as rubber airbags, ship air bags, ship launching airbags, ship salvage airbags, boat salvage airbags, inflatable airbags, ship lifting bags, and air balloons) are manufactured using rubber and multiple layers of rubber-dipped tyre fabric. They are widely used for launching and landing ships/boats/vessels, lifting and moving heavy goods, and salvaging stranded boats. These products are highly popular with shipyards, ship owners, and marine supply companies.

Concrete Pontoon Applications

Concrete pontoon (also called rubber mandrel) is made of natural rubber and rubber-dipped Nylon cord fabric. It's widely used for concrete culvert making in Kenya, Zambia, Tanzania, Ethiopia, and other countries worldwide.

Concrete pontoon rubber mandrel for construction

Pressure Specifications

Diameter (m)	1.0	1.2	1.5	1.8	2.0
Medium Pressure (4-5)
Test Pressure	0.14-0.16	0.12-0.14	0.10-0.12	0.08-0.10	0.07-0.09
Working Pressure	0.12-0.14	0.10-0.12	0.08-0.10	0.07-0.09	0.06-0.08
High Pressure (6-8)
Test Pressure	0.22-0.26	0.20-0.24	0.15-0.20	0.13-0.16	0.12-0.15
Working Pressure	0.20-0.24	0.17-0.22	0.13-0.18	0.11-0.14	0.10-0.13

Standard Marine Rubber Airbag Sizes

Customized sizes are also available upon request.

Diameter (m)	Effective Length (m)	Layer	Pressure (MPa)
1.0	10	5~6	0.07~0.10
1.0	12	5~6	0.07~0.10
1.0	15	5~6	0.07~0.10
1.2	10	5~6	0.08~0.12
1.2	12	5~6	0.08~0.12
1.2	15	5~6	0.08~0.12
1.5	12	5~8	0.08~0.16
1.5	15	5~8	0.08~0.16
1.5	18	5~8	0.08~0.16
1.5	20	4~8	0.08~0.16
1.5	24	5~8	0.08~0.16
1.8	12	5~8	0.08~0.15
1.8	15	5~8	0.08~0.15
1.8	18	5~8	0.08~0.15
1.8	20	5~8	0.08~0.15
1.8	24	5~8	0.08~0.15
2.0	18	6~10	0.08~0.18
2.0	20	6~10	0.08~0.18
2.0	24	6~10	0.08~0.18
2.5	18	7~10	0.07~0.13
2.5	20	7~10	0.07~0.13
2.5	24	7~10	0.07~0.13

Load Capacity Specifications

Diameter	Working Pressure	Working Height	Bearing Capacity (KN/m)	Bearing Capacity (Ton/m)
D=1.0m	0.20Mpa	0.6m	125.76	12.82
D=1.0m	0.20Mpa	0.5m	157.16	16.02
D=1.2m	0.17Mpa	0.7m	133.61	13.62
D=1.2m	0.17Mpa	0.6m	160.3	16.34
D=1.5m	0.13Mpa	0.9m	112.63	12.5
		0.8m	143.03	14.58
		0.7m	163.43	16.66
D=1.8m	0.11Mpa	1.1m	120.96	12.33
		1.0m	138.22	14.09
		0.9m	155.59	15.86
		0.8m	172.85	17.62
		0.7m	190.22	19.39
D=2.0m	0.10Mpa	1.2m	125.76	12.82
		1.1m	141.46	14.42
		1.0m	157.16	16.02
		0.9m	172.85	17.62
		0.8m	188.64	19.23

Marine rubber airbag technical specifications diagram

inflatable marine fenders

hydro pneumatic fender

marine boat fenders

Overall Rating

5.0

Based on 50 reviews recently

Rating Snapshot

5

100%

4

0%

3

0%

2

0%

1

0%

All Reviews

G

Grace from Mexico

Apr 11.2026

The rubber fender is exactly as shown. Strong elasticity, good buffer effect. Nice purchase, full marks.

T

Thomas from Canada

Mar 18.2026

Solid build quality, durable rubber fender. No air leak after long time use. Fast delivery, 5 stars.

R

Richard from Brazil

Feb 25.2026

Great inflatable rubber fender, thick material, perfect air tightness. Good shock absorption for marine use, totally satisfied!

ISO17357 Certified Pneumatic Rubber Fender with Customizable Sizes 0.3-4.8M and 50kpa & 80kpa Pressure Options

Premium Pneumatic Rubber Fender - Customized Solutions - ISO17357 Certified Qingdao Henger Shipping Supplies Co., Ltd, located in the coastal city of Qingdao, is a leading high-tech enterprise specializing in premium marine products including marine rubber fenders, marine airbags, navigation marks, ...

VIDEO

High Quality Pneumatic Rubber Fender For Offshore

High-quality pneumatic rubber fenders with 6-10 year lifespan, ISO 9001 & IACS certifications. Excellent durability (-40°C to +70°C), custom sizes (0.5-4.5m diameter), and global shipping safety applications.

VIDEO

ISO Certified Pneumatic Rubber Fender with Custom Sizes and 50kpa & 80kpa Pressure for Marine Vessel Protection

ISO-certified pneumatic rubber fenders for marine vessel protection. Custom sizes (0.3-4.8m), durable construction, floating capability, and certified by CCS/DNV/LR. Superior impact absorption for ship-to-ship and dock operations.

VIDEO

50Kpa 80Kpa Initial Pressure Yokohama Pneumatic Fender Corrosion Resistant ISO17357 Standard

ISO17357-certified Yokohama pneumatic fender with 50Kpa/80Kpa pressure options. Excellent corrosion & abrasion resistance for marine use. Custom sizes, ABS/BV/CCS/DNV certified, -20-50°C range.

VIDEO

Diameter From 0.5m To 4.5m Pneumatic Rubber Fender Deflection 60%

Pneumatic rubber fenders (0.5-4.5m) with 60% deflection & high-pressure resistance. Certified by BV/CCS/LR/DNV/ABS. Custom sizes up to 4.5×12m available. Includes safety valve & 1-year warranty.

VIDEO

Inflatable Rubber Fender 50kpa & 80kpa for Ship-to-Ship Transfer

Custom inflatable rubber fenders for ship-to-ship operations. Features 50/80kpa pressure options, ISO/IACS certified, 24-month shelf life. Superior safety, uniform pressure distribution, and cost-effective marine protection.

VIDEO

4.8x12m 50kpa / 80kpa Pneumatic Fenders For Ships

Qingdao Henger Shipping Supplies Co., Ltd Lies in Qingdao, a beautiful coastal city with red tiling and green trees, blue sea and clear sky, Qingdao Henger Shipping Supplies Co., Ltd is a high-tech enterprise integrated with manufacturing, research and innovation, technical services, specialized in ...

VIDEO

Pneumatic Rubber Fender For Marine Service

Inflatable Rubber Fender Introduction The "Yokohama Type Inflatable Rubber Fender" was developed in 1958. Progress in the development of such floating inflatable rubber fenders is closely related to the progress and development of ship technology, and has to continuously cope with progressively ...

Pneumatic Rubber Fender

Marine Rubber Fender

Submarine Fenders

Pneumatic Marine Fender

Foam Filled Fender

Marine Rubber Airbag

Ship Launching Airbags

Inflatable Marine Airbags

Marine Salvage Airbags

Steel Mooring Buoy

Marine Mooring Buoy

Marine Navigation Buoys

Safety Roller Barrier

Marine Mooring Bollard

High Pressure Rubber Pipe Plug

BV Certified Marine Rubber Airbag and Pneumatic Rubber Fender with 4-25m Length and 6-8 Years Useful Life

Product Summary

Product Custom Attributes

inflatable marine fenders

hydro pneumatic fender

marine boat fenders

ISO17357 Certified Pneumatic Rubber Fender with Customizable Sizes 0.3-4.8M and 50kpa & 80kpa Pressure Options

High Quality Pneumatic Rubber Fender For Offshore

ISO Certified Pneumatic Rubber Fender with Custom Sizes and 50kpa & 80kpa Pressure for Marine Vessel Protection

50Kpa 80Kpa Initial Pressure Yokohama Pneumatic Fender Corrosion Resistant ISO17357 Standard

Diameter From 0.5m To 4.5m Pneumatic Rubber Fender Deflection 60%

Inflatable Rubber Fender 50kpa & 80kpa for Ship-to-Ship Transfer

4.8x12m 50kpa / 80kpa Pneumatic Fenders For Ships

Pneumatic Rubber Fender For Marine Service