Specifications
Brand Name :
Hongruntong Marine
Model Number :
HM-SLA75
Certification :
ABS, BV, KR, LR, GL, NK, RINA, DNV, RMRS
Place of Origin :
China
MOQ :
1
Price :
US$26-US$968
Payment Terms :
L/C, T/T, D/A, D/P, Western Union, MoneyGram
Supply Ability :
2082 Pcs Per Month
Delivery Time :
5-7 Work Days
Packaging Details :
Wooden Pallets, Wooden Box
Name :
Ship Launching Airbags
Reinforcement :
Tyre Cord Fabric Layer
Length :
3M-28M, or As Request
Metal Parts :
Q355, SS304, SS316
Working Pressure :
0.05-0.25 MPA
Diameter :
0.5M-3.0M, or As Request
Layers :
5-13Ply, or As Request
Packaging :
Pallets, Wooden Box
Shape :
Cylindrical
Material :
Top-Notch Natural Rubber
Color :
Black
Standard :
ISO14409:2011
Certificate :
ABS, BV, KR, LR, GL, NK, RINA, DNV, RMRS
Logo :
Supported
Warranty :
3 Years
Application :
Ship/Vessel/Boat Launching & Docking
Description

Wear Resistant Marine Rubber Airbags Safe Reusable Cost Effective

Description

Ship launching airbags are essential tools for safe and efficient vessel launching and handling. Constructed with high-strength synthetic rubber reinforced with multiple steel wire layers, they provide excellent load-bearing capacity and flexibility. The airbags are designed to withstand high instantaneous loads during vessel launches while offering resistance to abrasion, UV exposure, and aging. Their low-friction surface ensures smooth sliding, protecting the hull from scratches. Airbags are suitable for diverse vessel types and port conditions and reduce launch costs compared to traditional slipways and rollers.

Case Study


In 2022, a shipyard in Zhejiang was tasked with launching a 950-ton offshore supply vessel. The shipyard’s traditional slipway could not safely accommodate the vessel due to limited slope length. Hongruntong Marine supplied six airbags, each 2.2 meters in diameter and 16 meters long.

After performing pressure tests and load simulations, the airbags were inflated to 0.16 MPa. During launch, the vessel slid smoothly from the slipway into the water. The airbags distributed the load evenly, preventing hull stress points. The launch was completed in under 40 minutes, a 25% time reduction compared to traditional methods. The airbags were fully recovered and reused for subsequent launches. This project demonstrated Hongruntong’s airbags’ effectiveness in medium-sized vessel launches under constrained conditions.

Specifications

Item Description
Place of Origin China
Brand Name Hongruntong Marine
Product Name Ship Launching Airbags
Material Top-Notch Natural Rubber
Diameter 0.5m-3.0m, or As Request
Length 1.0m-28.0m, or As Request
Working Pressure 0.05-0.25 Mpa
Technics High Pressure, Overall Winding, Explosion-Proof
Use ship launching and docking
Thickness 5-15 ply
Standard Conducted by ISO14409 and GB/T1590-2006 system.
Accessories Q355/SS304/SS316, Pressure Gauge, Tee, Plug, Switch, Inflation Tube
Packaging Inner-Plastic Bag; Outer-Standard Wooden Pallets.
Keywords Marine Rubber Airbags for Ship Launching
Certificates ABS, BV, KR, LR, GL, NK, RINA, DNV, RMRS
MOQ 1
OEM Welcome

Diameter

Working

Pressure

Working

Height

Bearing Capacity
KN/m Ton/m
D=1.0m 0.14Mpa 0.6m 87.96 8.98
0.5m 109.96 11.22
0.4m 131.95 13.46
D=1.2m 0.12Mpa 0.7m 94.25 9.62
0.6m 113.10 11.54
0.5m 131.95 13.46
0.4m 150.80 15.39
D=1.5m 0.10Mpa 0.9m 94.25 9.62
0.8m 109.96 11.22
0.7m 125.66 12.82
0.6m 141.37 14.43
0.5m 157.08 16.03
D=1.8m 0.09Mpa 1.1m 98.96 10.10
1.0m 113.10 11.54
0.9m 127.33 12.98
0.8m 141.37 14.43
0.7m 155.51 15.87
0.6m 169.65 17.31
D=2.0m 0.08Mpa 1.2m 100.53 10.26
1.1m 113.10 11.54
1.0m 125.66 12.82
0.9m 138.23 14.11
0.8m 150.80 15.39
0.7m 163.36 16.67
0.6m 175.93 17.95
* Other size can be produced follow client's requirements.

Features

Reinforced Multi Layer Construction
Airbags feature multiple steel wire layers embedded within high-strength synthetic rubber. This structure ensures uniform load distribution and prevents structural fatigue during launches.

Precision Inflation Control
Equipped with digital pressure gauges and automatic relief valves, the airbags maintain optimal inflation even during peak load moments, preventing overpressure or rupture.

Hull Friendly Low Friction Surface
Specialized rubber reduces friction between the hull and airbag, ensuring smooth sliding while protecting sensitive coatings on aluminum or composite vessels.

Modular and Adaptable
Airbags are modular and can be arranged to match vessel length, weight, and hull design. Quick deflation allows for transport and reuse, improving operational efficiency.

Applications

Shipyard Launches
Safe and efficient launches for cargo ships, tugs, and supply vessels, especially in space-constrained facilities.

Dry Dock Movement
Smooth lateral or longitudinal movement of vessels in dry docks for maintenance or assembly.

Temporary Offshore Mooring
Airbags provide buoyancy support during short-term transportation or docking at offshore sites.

Why Choose Hongruntong Marine

Two Decades of Manufacturing Experience
Hongruntong Marine has 20+ years of experience delivering airbags to over 1,000 shipyards worldwide.

Custom Designs for Every Vessel
Tailored sizing, pressure ratings, and layout ensure safe launches for diverse vessel types.

Durable, High Quality Materials
Imported synthetic rubber and steel wire reinforcement resist corrosion, wear, and aging.

Full Technical Support
Comprehensive guidance from design to on-site operation ensures every launch is smooth and safe.

FAQ

1. What vessel weights can the airbags handle?
Single airbags: 500–3,000 tons; multiple airbags can handle larger vessels.

2. How long do the airbags last?
8–12 years under proper use and maintenance.

3. Can they be used in seawater?
Yes, rubber is corrosion-resistant and steel wire is rust-proof.

4. How many people are needed to operate?
3–5 personnel, depending on vessel size.

5. Can damaged airbags be repaired?
Minor punctures can be repaired; severe damage requires replacement.

Wear Resistant Marine Rubber Airbags Safe Reusable Cost EffectiveWear Resistant Marine Rubber Airbags Safe Reusable Cost EffectiveWear Resistant Marine Rubber Airbags Safe Reusable Cost EffectiveWear Resistant Marine Rubber Airbags Safe Reusable Cost Effective

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Brand Name :
Hongruntong Marine
Model Number :
HM-SLA75
Certification :
ABS, BV, KR, LR, GL, NK, RINA, DNV, RMRS
Place of Origin :
China
MOQ :
1
Price :
US$26-US$968
Contact Supplier
video
Wear Resistant Marine Rubber Airbags Safe Reusable Cost Effective
Wear Resistant Marine Rubber Airbags Safe Reusable Cost Effective
Wear Resistant Marine Rubber Airbags Safe Reusable Cost Effective
Wear Resistant Marine Rubber Airbags Safe Reusable Cost Effective

Hongruntong Marine LLC.

Verified Supplier
3 Years
beijing, beijing
Since 1990
Business Type :
Manufacturer
Total Annual :
5,256,780-5,593210
Employee Number :
220~360
Certification Level :
Verified Supplier
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