Hongruntong Marine Rubber Airbag is an engineered pneumatic support system developed for ship repair, vessel maintenance, temporary docking, and marine structure positioning applications. Unlike conventional fixed dry dock facilities or mechanical lifting systems, rubber airbags provide a flexible support method that enables vessels to be lifted, relocated, and temporarily supported during maintenance operations.
The product is manufactured using high-strength natural rubber combined with reinforced synthetic tire cord layers. This composite structure provides controlled elasticity, high compression resistance, excellent fatigue performance, and stable load distribution capability.
A marine repair company in Vietnam successfully used Hongruntong Marine Rubber Airbags for structural maintenance on a 5,800 DWT fishing vessel. The flexible support system provided stable vessel positioning during hull inspection, underwater coating repair, and steel structure maintenance, eliminating the need for expensive external dry dock rental.
The airbags were positioned beneath the vessel at calculated support points and gradually inflated to ensure balanced load distribution. The elastic characteristics reduced stress concentration on the hull and provided a safer working environment compared to temporary rigid supports.
| 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 |
| 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 |
| 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 sizes can be produced following client's requirements.
Hongruntong Marine Rubber Airbags are suitable for fishing vessels, workboats, barges, cargo ships, and other marine structures requiring temporary support during repair or maintenance operations.
Service life depends on operating conditions, maintenance procedures, and storage environment. With proper inspection and maintenance, the airbags can be reused for multiple marine projects.
After use, the airbags should be cleaned, inspected for surface damage, checked for valve condition, and stored in a dry environment away from direct sunlight and chemical exposure.
Yes. Diameter, length, reinforcement layers, and technical specifications can be customized according to vessel dimensions, load requirements, and application conditions.
Yes. The reinforced rubber structure provides resistance against seawater, humidity, UV exposure, and temperature changes, making them suitable for coastal and marine maintenance applications.
