1. 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.
2. Technical Requirement
According to CB/T 3795--1996, marine rubber fender should meet the following requirements.
Diameter & Effective Length Deviation: ±2%
Total Length Deviation: ±4%
- Amount of Elastic Deformation: diameter deformation amount ≤ 5% under 1.2 times working pressure.
- Safety Factor: >4.5
- Air Tightness: depressurization < 5% after 1hour inflation
- Surface Quality: fairing line shape, no crack, no bubble, no double skin, no impurities, no distinct dirt and other apparent defect.
- Anti-explosion design of end part.
3. 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 |
4. Marine Rubber Airbag Application
- 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.
Marine rubber fend could be applied to caisson lifting, launching, moving and transporting in port constructing projects
Because marine rubber airbag has buoyancy force and load-bearing capacity, it is also widely used in sunken vessel salvage and Buoyancy Aid.
5.shipment
6.FAQ ABOUT MARINE RUBBER AIRBAGS
1."Can I use marine rubber airbags for both ship launching and docking ?"
Answer: Yes, our rubber airbags are widely used for ship launching/ docking/ lifting/ moving and salvage etc.now.
2. "What's the advantage of your marine rubber airbags compared to slipway ?"
Answer:
1) our marine rubber airbags are much cheaper than slipway,but also reusable, it can save money and labor
2) our marine rubber airbags are moveable , it can save time and more flexible
3) our rubber airbags are much soft than slipway,there's no harm to the bottom of the ship.
3. "I have ships but don't know how to choose rubber airbags size ,can you help me?"
Answer: Don't worry .We have more than 20 years' experience. Pls tell me information of your ship, we can suggest suitable size for you.
4."I want to try your marine rubber airbags, but I never use it and don't know how to use ,can you help me?"
Answer: Don't worry. We will send instruction book together with our rubber airbags. We also have video . And we can go to your company to teach you using rubber airbags on site.
