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

Highlight

BV Certified Marine Rubber Airbag

,

4-25m Length Pneumatic Rubber Fender

,

6-8 Years Useful Life Ship Launching Airbag

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.

BV Certified Marine Rubber Airbag and Pneumatic Rubber Fender with 4-25m Length and 6-8 Years Useful Life 0

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.

BV Certified Marine Rubber Airbag and Pneumatic Rubber Fender with 4-25m Length and 6-8 Years Useful Life 1

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

BV Certified Marine Rubber Airbag and Pneumatic Rubber Fender with 4-25m Length and 6-8 Years Useful Life 2

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Overall Rating

5.0

Based on 50 reviews recently

Rating Snapshot

5

100%

4

0%

3

0%

2

0%

1

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All Reviews

J

Jason from Brazil

Mar 4.2026

The fender boasts excellent overall craftsmanship, superior airtightness, outstanding cushioning and protection, and is made of thick and durable materials. The manufacturer is reliable and the quality is top-notch.

R

Richard from Bahrain

Feb 18.2026

The fenders are of very high quality, delivered quickly, and the service is professional.

R

Rose from Germany

Jan 27.2026

It has outstanding anti-aging properties. After six months of use in environments with intense sunlight and salt spray, the surface remains smooth and crack-free, demonstrating stable quality.

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

Product Summary

Product Custom Attributes

Highlight

BV Certified Marine Rubber Airbag

4-25m Length Pneumatic Rubber Fender

6-8 Years Useful Life Ship Launching Airbag

inflatable marine fenders

hydro pneumatic fender

marine boat fenders

Foam Filled Fender Dock Bumper ISO17357 Standard 0.5-4.8m Diameter For Marine Use

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ISO 14409 Certified Marine Rubber Airbag With 4-12 Layers For Ship Launching And Docking

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High Pressure Resistant Pneumatic Rubber Fender with Custom Manufacturing for 50kpa & 80kpa Marine Applications

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Custom Manufacturing Pneumatic Rubber Fender with 50kpa & 80kpa Pressure and ISO17357 Certification for Marine Applications

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