Air Lifting Bags

Underwater Lift Bags

Underwater lift bags are parachute-type inflatable flotation devices designed for safe and efficient underwater lifting, salvage, and re-floating operations. Available in open-bottom and enclosed-bottom designs, these lift bags are widely used by commercial divers and marine salvage professionals.

The parachute-shaped, water-drop profile ensures stable lifting performance and controlled ascent. Open-bottom lift bags can be used at any depth, allowing excess air to vent automatically for safer operation. Enclosed-bottom lift bags feature a bottom cover that can be opened or closed, providing greater control based on project requirements.

Widely Used for

Marine salvage and recovery operations

Re-floating sunken or grounded objects

Commercial diving lifting tasks

Scuba diving lift operations

Offshore and harbour construction support

Salvage flotation and buoyancy control

Key Advantages

- Open-Bottom Design Safety
  Automatically releases excess air, reducing over-pressurization risks

All-Purpose Application
Suitable for shallow and deep-water salvage operations

- Stable Parachute Shape
  Water-drop design improves balance and lift control

- Flexible Bottom Options
  Enclosed models allow bottom cover operation based on project needs

Professional-Grade Construction
Designed for demanding commercial and industrial marine environments

Versatile Use
Ideal for scuba diving lift bags, salvage lift bags, and flotation recovery systems

OBP Lifting Bags Specifications

Marine Salvage Bags

Air Lifting Bag marine salvage bags are engineered to provide safe, reliable, and controlled buoyancy for marine salvage and refloating operations. Featuring a fully enclosed cylindrical design, these units are also known as enclosed air lift bags, inflatable buoyancy units, or salvage pontoons, and are built for demanding offshore and industrial environments.

Designed to complement our underwater lift bags range, marine salvage bags deliver stable flotation for lifting, supporting, and positioning heavy submerged structures.

Widely Used for

Marine salvage and refloating operations

Buoyancy support for sunken vessels and structures

Floating bridges, platforms, and dock gates

Support of underwater construction and recovery works

Military, offshore, and heavy marine equipment handling

Cable and pipeline laying operations

Boat lifting and draught reduction

Lifting Bags Specifications