Open Bottom Parachute Air Lift Bag

The Open Bottom Parachute Style Underwater Air Lift Bag is one of the most versatile and widely used buoyancy devices for underwater lifting, salvage, and recovery operations. Designed with an open-bottom configuration, the bag automatically vents excess air as it ascends, maintaining constant buoyancy and reducing the risk of over-pressurization during lifting operations.

Manufactured from heavy-duty, high-strength coated fabric, these lift bags provide a safe, reliable, and economical solution for recovering submerged objects, refloating vessels, positioning underwater structures, and supporting commercial diving operations. Their streamlined parachute design allows for easy deployment, compact storage, and excellent lifting efficiency, making them a preferred choice for marine salvage contractors, offshore operators, naval forces, and underwater engineering teams.

Features & Benefits

Open-bottom parachute design for safe and controlled underwater lifting.
Self-regulating buoyancy allows excess air to escape automatically during ascent.
Manufactured from high-strength coated polyester fabric for superior durability.
Heavy-duty webbing harness ensures even load distribution throughout the bag.
High lifting capacity with an excellent buoyancy-to-weight ratio.
Compact and lightweight design for easy transportation and storage.
Quick deployment and inflation using standard compressed air systems.
Reinforced lifting points and rigging attachments for secure operation.
Resistant to abrasion, UV exposure, seawater, oil, and harsh marine environments.
Suitable for both shallow-water and deep-water lifting applications.
Corrosion-resistant hardware provides long service life.
Easy inspection, maintenance, and cleaning for reduced operational downtime.
Available in a wide range of lifting capacities to suit various applications.
Can be used individually or in multiple-bag lifting configurations.
Custom lifting capacities and configurations available upon request.

MODEL CAPACITY

HEIGHT (M / FT)

WIDTH (M / FT)

WATER VOLUME

SHIPPING SIZE

EMPTY WEIGHT

12 Ton (12000 KG / 24000 LB)

4.08 M / 13'-4"

2.72 M / 8'-11"

12 M³ / 423.78 FT³

0.68 M³ / 24 FT³

90.72 KG / 200 LB

15 Ton (15000 KG / 33000 LB)

4.26 M / 14'-0"

2.98 M / 9'-10"

15 M³ / 529.73 FT³

0.85 M³ / 30 FT³

145.15 KG / 320 LB

20 Ton (20000 KG / 44000 LB)

5.96 M / 19'-7"

3.42 M / 11'-3"

20 M³ / 706.30 FT³

1.81 M³ / 64 FT³

172.36 KG / 380 LB

25 Ton (25000 KG / 55000 LB)

6.07 M / 19'-11"

3.86 M / 12'-8"

25 M³ / 882.88 FT³

1.81 M³ / 64 FT³

208.65 KG / 460 LB

35 Ton (35000 KG / 77000 LB)

6.80 M / 22'-4"

4.29 M / 14'-1"

35 M³ / 1236.03 FT³

1.81 M³ / 64 FT³

249.47 KG / 550 LB

40 Ton (40000 KG / 88000 LB)

7.32 M / 24'-0"

4.46 M / 14'-8"

40 M³ / 1412.60 FT³

2.27 M³ / 80 FT³

331.12 KG / 730 LB

50 Ton (50000 KG / 110000 LB)

7.62 M / 25'-0"

5.09 M / 16'-8"

50 M³ / 1765.75 FT³

2.27 M³ / 80 FT³

476.27 KG / 1050 LB