Rubber airbags are precision-engineered pneumatic load-bearing systems developed to support demanding marine and heavy industrial operations where conventional launching facilities or lifting equipment cannot provide the required flexibility or economic efficiency. Designed for ship launching, dry docking, offshore construction, heavy module transportation, bridge engineering, and infrastructure installation, these reusable airbags combine advanced rubber technology with reinforced structural engineering to deliver stable mechanical performance under continuously changing load conditions.
Hongruntong Marine Rubber Airbags are manufactured using premium natural rubber, synthetic rubber compounds, and multiple layers of high-strength synthetic tire cord fabric through an integrated production process that includes precision calendaring, layer alignment, automated wrapping, controlled vulcanization, and comprehensive quality inspection. The engineered composite structure allows the airbag to withstand high internal pressure while maintaining excellent elasticity and dimensional stability during repeated compression and recovery cycles.
A port infrastructure contractor in Brazil was awarded a major expansion project involving the installation of several reinforced concrete caissons for a new deep-water terminal. Each caisson measured more than 24 meters in length and weighed approximately 2,900 tonnes. Following a comprehensive engineering evaluation, Hongruntong Marine developed a customized rubber airbag transportation system based on the caisson dimensions, calculated bearing loads, center of gravity, rolling resistance, and operational safety requirements.
The complete transportation and launching operation was completed without structural damage, air leakage, or operational interruption. Compared with the contractor's original transportation proposal, the rubber airbag system reduced equipment mobilization costs by approximately 38% and shortened the overall construction schedule by nearly one week.
| Item | Description |
|---|---|
| Place of Origin | China |
| Brand Name | Hongruntong Marine |
| Material | NBR |
| 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 | 5-13 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 | Rubber Airbag |
| Certificates | ABS, BV, KR, LR, GL, NK, RINA, DNV, RMRS |
| MOQ | 1 |
| OEM | Welcome |
| 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=1.0m | 0.14Mpa | 0.5m | 109.96 | 11.22 |
| D=1.0m | 0.14Mpa | 0.4m | 131.95 | 13.46 |
| D=1.2m | 0.12Mpa | 0.7m | 94.25 | 9.62 |
| D=1.2m | 0.12Mpa | 0.6m | 113.10 | 11.54 |
| D=1.2m | 0.12Mpa | 0.5m | 131.95 | 13.46 |
| D=1.2m | 0.12Mpa | 0.4m | 150.80 | 15.39 |
| D=1.5m | 0.10Mpa | 0.9m | 94.25 | 9.62 |
| D=1.5m | 0.10Mpa | 0.8m | 109.96 | 11.22 |
| D=1.5m | 0.10Mpa | 0.7m | 125.66 | 12.82 |
| D=1.5m | 0.10Mpa | 0.6m | 141.37 | 14.43 |
| D=1.5m | 0.10Mpa | 0.5m | 157.08 | 16.03 |
| D=1.8m | 0.09Mpa | 1.1m | 98.96 | 10.10 |
| D=1.8m | 0.09Mpa | 1.0m | 113.10 | 11.54 |
| D=1.8m | 0.09Mpa | 0.9m | 127.33 | 12.98 |
| D=1.8m | 0.09Mpa | 0.8m | 141.37 | 14.43 |
| D=1.8m | 0.09Mpa | 0.7m | 155.51 | 15.87 |
| D=1.8m | 0.09Mpa | 0.6m | 169.65 | 17.31 |
| D=2.0m | 0.08Mpa | 1.2m | 100.53 | 10.26 |
| D=2.0m | 0.08Mpa | 1.1m | 113.10 | 11.54 |
| D=2.0m | 0.08Mpa | 1.0m | 125.66 | 12.82 |
| D=2.0m | 0.08Mpa | 0.9m | 138.23 | 14.11 |
| D=2.0m | 0.08Mpa | 0.8m | 150.80 | 15.39 |
| D=2.0m | 0.08Mpa | 0.7m | 163.36 | 16.67 |
| D=2.0m | 0.08Mpa | 0.6m | 175.93 | 17.95 |
* Other sizes can be produced following client's requirements.
The number of reuse cycles depends on operating pressure, load conditions, environmental exposure, and maintenance practices. Under normal engineering conditions and proper operating procedures, high-quality rubber airbags can be reused for numerous transportation and launching projects while maintaining stable mechanical performance.
Yes. Hongruntong Marine manufactures customized rubber airbags according to project requirements, including diameter, effective length, reinforcement layer configuration, working pressure, and load capacity. Engineering calculations are performed to ensure the customized design satisfies operational requirements.
Before use, operators should inspect the external rubber surface for cuts, excessive abrasion, or visible damage. Inflation valves should be checked for proper sealing, operating pressure should be verified using calibrated equipment, and the transportation surface should be cleared of sharp objects that could damage the airbag.
Airbags should be cleaned thoroughly after operation and stored in a dry, ventilated warehouse away from direct sunlight, excessive heat, oils, chemicals, and ozone-generating equipment. Proper storage helps preserve rubber elasticity and extends overall service life.
Yes. Hongruntong Marine provides technical consultation covering product selection, engineering calculations, airbag arrangement, recommended operating pressures, transportation procedures, and maintenance guidance. Technical documentation and project support are available to help customers implement safe and efficient heavy transportation and marine launching operations.