Heavy Lift Industrial Air Bags Shipwreck Salvage Inflatable Lifting Belts Buoyancy Bags
Marine salvage airbags are the system of choice where reliable, controllable buoyancy is required. They are particularly suited for installation buoyancy on pipeline float-out, beach pulls, and river crossings. Our marine salvage rubber airbags have also been used in applications such as vessel and platform draught reduction in limited water depths. And as salvage pontoons for temporary bridges and docks. The salvers can use marine rubber airbags to salvage the shipwreck, rescue the floating bridge, and dock construction.
Floating Assistance Salvage And Rescue Field Salvage Rubber Airbags for Sunken Ships or Offshore Facilities
Marine Salvage Airbags are the toughest air lifting bags. They can be used as salvage pontoons for supporting docks and other floating structures. Also suitable for shipwreck salvage, floating bridge rescue, and dock construction. With the strongest pneumatic rubber body, these salvage rubber airbags excel in heavy-duty salvage work under severe environments.
Compared with steel floats, the advantage of lightweight pneumatic buoyancy airbags is that they can obtain great buoyancy assistance with lower economic investment, and can be used to complete tasks such as underwater installation of steel components and ship salvage.
Primary Applications
Marine salvage airbags excel in demanding environments where reliable, controllable buoyancy is essential. They are particularly effective for:
- Pipeline float-out operations
- Beach pulls and river crossings
- Vessel and platform draught reduction in shallow waters
- Temporary bridge and dock pontoons
- Heavy-duty salvage operations in severe conditions
Marine Salvage Airbags Buoyancy Capacity
Marine salvage airbags offer different buoyancy capacities with numerous combinations of diameters and lengths. Below is the buoyancy list of standard marine salvage airbags:
| Length | D=1m | D=1.2m | D=1.5m | D=1.8m | D=2m | D=2.5m | D=3.0m |
| 5m | 4t | 6t | 9t | 13t | 16t | 25t | 35t |
| 6m | 5t | 7t | 11t | 15t | 19t | 29t | 42t |
| 7m | 5t | 8t | 12t | 18t | 22t | 34t | 49t |
| 8m | 6t | 9t | 14t | 20t | 25t | 39t | 57t |
| 9m | 7t | 10t | 16t | 23t | 28t | 44t | 64t |
| 10m | 8t | 11t | 18t | 25t | 31t | 49t | 71t |
| 11m | 9t | 12t | 19t | 28t | 35t | 54t | 78t |
| 12m | 9t | 14t | 21t | 31t | 38t | 59t | 85t |
| 13m | 10t | 15t | 23t | 33t | 41t | 64t | 92t |
| 14m | 11t | 16t | 25t | 36t | 44t | 69t | 99t |
| 15m | 12t | 17t | 27t | 38t | 47t | 74t | 106t |
| 16m | 13t | 18t | 28t | 41t | 50t | 79t | 113t |
| 17m | 13t | 19t | 30t | 43t | 53t | 83t | 120t |
| 18m | 14t | 20t | 32t | 46t | 57t | 88t | 127t |
| 19m | 15t | 21t | 34t | 48t | 60t | 93t | 134t |
| 20m | 16t | 23t | 35t | 51t | 63t | 98t | 141t |
| 21m | 16t | 24t | 37t | 53t | 66t | 103t | 148t |
| 22m | 17t | 25t | 39t | 56t | 69t | 108t | 156t |
| 23m | 18t | 26t | 41t | 59t | 72t | 113t | 163t |
| 24m | 19t | 27t | 42t | 61t | 75t | 118t | 170t |
| 25m | 20t | 28t | 44t | 64t | 79t | 123t | 177t |
All Doowin Marine marine salvage airbags are manufactured and inspected fully compliant with ISO 14409 "Ships and marine technology - ship launching air bags" and IMCA D016, certificated by CCS, LR, BV.
Why Choose Rubber Marine Salvage Airbags
Rubber marine salvage airbags are made by multilayer heavy-duty synthetic-tire-cord layers. They are more sturdy and reliable than PVC air lifting bags commonly used in the diving or marine salvage indury.
- High Buoyancy Capacity - Salvage rubber airbags create high buoyancy capacity with safer air pressure, ranging from 4t to 300t.
- Deep Water Operation - These marine salvage rubber airbags can be used for deepwater salvage lifting and can be equipped with safety valves.
- Abrasion Resistant - Salvage rubber air bags feature 6-12 plies reinforcement layers to withstand most abrasion and puncture.
Structure of Marine Salvage Rubber Airbags
Marine salvage airbags are equipped with lifting belts and shackles. For larger sizes, we install safety valves that automatically release inner air-pressure when reaching the rated value.
You can select the required diameter and effective length for your projects. The specifications shown are standard arrangements, but we can supply other specifications upon request, with buoyancy capacity up to 300 tons.
Ship Launching Airbags Material
Rubber airbags are constructed of an out rubber layer, multi-layer synthetic-tire-cord layers, and inner rubber layer vulcanized firmly. Rubber airbags are cylindrical balloon body, with two conical head and end mouth. Swivels and air inlet kits are screwed with end mouth.
Synthetic-tire-cord Layer
Synthetic-tire-cord layer is reinforcement layer of the ship launching airbags which are made of rubber coated synthetic-tire-cord fabrics. Many synthetic-tire cord layers are twined at ideal angles by unique and patented "Holistic Wrapping Technology". To hold the internal pressure and to distribute the stress evenly. We use the 1870 dtex/2 type synthetic-tire-cord fabric. The warp is over 95 cords per 100 mm in width. The breaking strength is more than 310 N per cords.
Inner and Outer Rubber
Prior to the air bag production, the outer and inner rubber layers shall be tested to meet the criteria in accordance with the test methods given in the International Standards listed below. The outer rubber layer covers the outside of ship launching airbags. To protects the cord layers from abrasion and other external forces. This compound has sufficient tensile and tear strength to withstand any weather conditio
Why Our Marine Rubber Airbags
From the raw materials to the highly skilled production process, our engineering team constantly improves.
Our rubber roller are manufactured and tested to comply with
ISO 14409, certificated by CCS, LR, DNV.
