Enclosed bottom parachute air bag is a heavy-duty inflatable buoyancy unit designed to provide reliable flotation, lifting, and buoyancy support for marine, offshore, and salvage operations. Featuring a fully enclosed design, the Lift Bag retains air within the chamber, providing stable and controlled buoyancy during lifting, refloating, towing, and surface support applications.
Inflatable lifting bags are made from coated fabric with a pressure relief valve, and capacities run from 1 tonne to 10 tonne. Compact when empty for transport and storage. Their compact storage size, high lifting capacity, and ease of deployment make them an essential tool for commercial diving, marine salvage, offshore construction, naval operations, and emergency response projects. Explore Our Enclosed Pillow-shaped Bag for lifting operations.
| LIFT CAPACITY | HEIGHT | WIDTH | VOLUME | SHIPPING CUBE | DRY WEIGHT |
|---|---|---|---|---|---|
| KG / LB | M / FT-IN | M / FT-IN | M³ / FT³ | M³ / FT³ | KG / LB |
| 1000 / 2200 | 1.80 / 5'-11" | 1.20 / 3'-11" | 1.00 / 35.32 | 0.15 / 5.4 | 20.41 / 45 |
| 2000 / 4400 | 2.20 / 7'-3" | 1.50 / 4'-11" | 2.00 / 70.63 | 0.18 / 6.5 | 27.22 / 60 |
| 3000 / 6600 | 2.60 / 8'-7" | 1.70 / 5'-8" | 3.00 / 105.95 | 0.24 / 8.4 | 34.02 / 75 |
| 5000 / 11000 | 3.00 / 10'-0" | 2.00 / 6'-8" | 5.00 / 176.58 | 0.40 / 14.0 | 45.36 / 100 |
| 6000 / 13200 | 3.35 / 11'-0" | 2.31 / 7'-7" | 6.00 / 211.89 | 0.45 / 16.0 | 54.43 / 120 |
| 8000 / 17600 | 3.56 / 11'-8" | 2.38 / 7'-9" | 8.00 / 282.52 | 0.49 / 17.3 | 63.50 / 140 |
| 10000 / 22000 | 3.84 / 12'-7" | 2.56 / 8'-4" | 10.00 / 353.15 | 0.57 / 20.0 | 74.84 / 165 |
An enclosed lifting bag is an inflatable buoyancy bag filled with compressed air to lift or support loads in water. It is used for recovering submerged objects, refloating boats, and giving buoyancy support to floating structures in marine and offshore work.
An enclosed bag is sealed, so the air stays inside the chamber while it lifts a load. An open-bottom parachute bag has an open base, and air can spill out if the bag tilts or rises. Enclosed bags suit controlled lifting, refloating and surface support.
The bag is inflated with a standard compressed air source, and a pressure relief valve helps prevent over-inflation. Divers or operators add air gradually so the load rises in a controlled way. Lift capacity depends on the bag volume, so the size must match the load.
Yes. Several bags can be rigged to the same load to share the lifting force, which helps when one bag is too small. The combined capacity must exceed the submerged weight of the load, and the bags must be attached evenly so the load stays level.
