Lightweight Airbag Roller Durable High Load Capacity Corrosion Pressure Resistant
Product Description
Ship launching airbags are advanced, high-performance auxiliary devices engineered for the safe launching, handling, and transportation of vessels of varying sizes and types. They consist of multiple layers of high-strength steel wire reinforcement embedded within a durable synthetic rubber matrix, giving them exceptional elasticity, tensile strength, and the ability to withstand extreme loads.
The outer rubber layer is abrasion-resistant, UV-resistant, saltwater-resistant, and highly resistant to aging. Its low-friction surface ensures smooth sliding between the airbag and the hull, protecting delicate coatings and reducing energy consumption during launch. The modular design allows flexible placement under hulls of various lengths and shapes, providing uniform load distribution and ensuring vessel stability throughout the launching process.
Case Study
In 2023, a large shipyard in Jiangsu Province faced the challenge of launching a 3,200-ton bulk carrier with a length of 180 meters. Hongruntong Marine supplied twelve high-capacity airbags, each 3.2 meters in diameter and 22 meters long, customized to support the weight and size of this specific vessel.
The airbags were arranged beneath the hull in a staggered configuration to maximize load distribution. The entire launch was completed in under 55 minutes, a significant improvement over conventional slipway methods, and the vessel remained fully intact without scratches, dents, or coating damage.
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. |
| Certificates |
ABS, BV, KR, LR, GL, NK, RINA, DNV, RMRS |
Capacity Specifications
| Diameter |
Working Pressure |
Working Height |
Bearing Capacity (KN/m) |
Bearing Capacity (Ton/m) |
| D=1.0m |
0.14Mpa |
0.6m |
87.96 |
8.98 |
| D=1.2m |
0.12Mpa |
0.7m |
94.25 |
9.62 |
| D=1.5m |
0.10Mpa |
0.9m |
94.25 |
9.62 |
| D=1.8m |
0.09Mpa |
1.1m |
98.96 |
10.10 |
| D=2.0m |
0.08Mpa |
1.2m |
100.53 |
10.26 |
* Other size can be produced follow client's requirements.
Key Features
High Strength Multi Layer Steel Wire Reinforcement
Hongruntong Marine airbags feature multiple layers of high-tensile steel wire woven within a synthetic rubber matrix. The precise winding of steel wires ensures uniform load distribution and prevents localized stress, which is critical for heavy vessels.
Advanced Pressure Control and Safety System
Each airbag comes with high-precision digital pressure gauges and safety relief valves. The gauges allow operators to monitor inflation in real time, while safety valves automatically release excess pressure to prevent rupture.
Low Friction Hull Protection and Energy Efficiency
The outer layer of each airbag is made of low-friction, abrasion-resistant rubber that minimizes sliding resistance between the airbag and hull. This ensures smooth vessel movement, protecting delicate coatings.
Modular Design, Flexibility, and Rapid Recovery
Airbags are produced in modular lengths and diameters, allowing flexible configurations tailored to vessel length, weight, and hull geometry. After use, the airbags can be quickly deflated, inspected, and stored for future launches.
Applications
- Shipyard Vessel Launching: Ideal for launching large cargo ships, oil tankers, bulk carriers, and passenger vessels.
- Dry Dock and Hull Relocation: Enables horizontal or longitudinal movement of vessels in dry docks for maintenance.
- Temporary Offshore Buoyancy and Transport Assistance: Provides temporary buoyancy and support for modular vessels.
Why Choose Hongruntong Marine
- Extensive Marine Equipment Expertise: Over 20 years of experience designing and manufacturing ship launching airbags.
- Custom Tailored Solutions: Fully customized airbag layouts, dimensions, and pressure settings.
- Premium Materials and Advanced Manufacturing: Constructed from imported high-strength synthetic rubber and steel wire reinforcement.
- Comprehensive Technical Support: Complete support from design consultation to operational training.
Frequently Asked Questions
1. What is the maximum vessel weight a single airbag can handle?
Depending on the model, a single airbag can support 500-3,000 tons. Multiple airbags can be combined to accommodate heavier vessels.
2. How long is the service life of the airbags?
With proper use and maintenance, airbags typically last 8-12 years. Regular inspection is recommended.
3. Can the airbags be used in seawater conditions?
Yes. The outer rubber layer is corrosion-resistant, and the steel wire reinforcement is treated to prevent rust.
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