Marine Inflatable Rubber Airbags Diameter 1.8m Construction moving air bag
Marine rubber airbags are not only used on ship building line, operation, also widely used in the giant building blocks for carrying, and disaster relief, salvaging a sunken ship for storage and transportation of gas or liquid container, build a pontoon bridge and water pipe, and other areas of the operation.
Rubber Airbag for ship launching have nice designed structure which consists of five different functional membranes.
Outer Rubber Layer The outer rubber layer that covers the outside of marine airbag to protect under layers from abrasion and other external forces. This compound has sufficient tensile and tearing strength to withstand any condition and hard usage.
Inner Rubber Layer The inner rubber layer seals pressurized air inside marine airbags.
Synthetic-Tire-Cord Layer The reinforcement cord layers, which are made of synthetic-tire-cord commonly used in tires, are arranged at ideal angles to hold the internal pressure and distribute stress evenly. So they can provide strong efficient reinforcement.
Performance Calculation Principle of Airbags
The bearing capacity of marine airbags was calculated based on the working pressure, contact area. Herein, working pressure was got upon the burst pressure and safety working factor.
Because of the flexibility of marine airbag the contact area will be affected by some terms which include the carried ship condition, the different position from gravity center during the process of ship launching and pulling. So the bearing capacity of airbags will vary as well as the contact area.
The approximate bearing capacity can be calculated as follows:
F=PS
S=π x (D1-D2)/2
Mark:
F: Bearing capacity
P: Inner pressure
S: Contact area
D1: Diameter of airbags when free of loat
D2: Working height of airbags when loaded
Specification:
| Diameter | Safe working pressure | Work high | The bearing capacity |
| KN/M | T/M |
| D=1.0M | 0.17MPa | 0.6m | 106.93 | 10.93 |
| 0.5m | 133.61 | 13.62 |
| 0.4m | 160.3 | 16.34 |
| D=1.2M | 0.14MPa | 0.7m | 110.07 | 11.22 |
| 0.6m | 132.04 | 13.46 |
| 0.5m | 154.02 | 15.7 |
| 0.4m | 175.99 | 17.94 |
| D=1.5M | 0.11MPa | 0.9m | 103.79 | 10.58 |
| 0.8m | 121.06 | 12.34 |
| 0.7m | 138.32 | 14.1 |
| 0.6m | 155.59 | 15.86 |
| 0.5m | 172.85 | 17.62 |
| D=1.8M | 0.09MPa | 1.1m | 99.08 | 10.1 |
| 1.0m | 113.21 | 11.54 |
| 0.9m | 127.33 | 12.98 |
| 0.8m | 141.46 | 14.42 |
| 0.7m | 155.59 | 15.86 |
| 0.6m | 169.71 | 17.3 |
| D=2.0M | 0.08MPa | 1.2m | 100.65 | 10.26 |
| 1.1m | 113.21 | 11.54 |
| 1.0m | 125.76 | 12.82 |
| 0.9m | 138.32 | 14.1 |
| 0.8m | 150.88 | 15.38 |
| 0.7m | 163.43 | 16.66 |
| 0.6m | 175.99 | 17.94 |
Company Information
Qingdao Luhang Marine Airbag and Fender Co.,Ltd is located in Jidong Industrial Park, Jimo City, Qingdao. We are a professional manufacturer of multi-purpose marine equipment including ship launching and landing airbag, pneumatic rubber fender, EVA foam filled fender, marine buoys in deep and shallow seas etc. Through many years’ development and accumulation, we have developed to a new high-tech enterprise with an integration of scientific research and design, product R&D,sales and technical service. With advanced manufacturing equipment, strict QC,we are supplying high quality products and after-sale service and widely appraised by domestic and overseas customers.
Luhang company had been certificated by ISO9001:2009, CCS, DNV,GL and SGS. Luhang is a Qingdao Famous brand. Products had been approved by CCS, DNV.GL,BV,ABS. Customers are free worry of our products and can use them safely.
Luhang has always been based on “People First, Scientific Management”and set up a quality idea of Focusing on Customers. All is in the interests of the customer and Customer’s satisfaction is our principle. We are always obedient to Honest Cooperation,Being Rigorous and Practical, Being Considerate and Seeking Perfectness and thus won a great public praise in the industry and among customers.
Forge “Luhang”brand with strength and create brilliant future. We will make a closer cooperation with friends in all circles and make a splendor future together.
