15t Salvage Bags Reinforced Seams Long Service Life Easy To Repair

Brand Name:Hongruntong Marine
Certification:ISO, BV, ABS, DNV, LR, SGS, CCS, RMRS
Model Number:HM-UALB587
Minimum Order Quantity:1
Delivery Time:5-8 Work Days
Payment Terms:L/C, T/T, D/A, D/P, Western Union, MoneyGram
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Location: Beijing Beijing China
Address: C1-7, Xuhui Center, Jinguan North 2nd Street, Shunyi District, Beijing City, P.R. China 101300
Supplier`s last login times: within 11 hours
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Product Details

15t Salvage Bags Reinforced Seams Long Service Life Easy To Repair


Description


Underwater Air Lift Bags are essential tools for commercial divers and salvage teams, providing controlled buoyancy to lift heavy submerged objects. Made from durable, high-strength materials like reinforced nylon or PVC, these bags can handle extreme pressures at depth. By filling them with compressed air, divers can adjust buoyancy to safely recover shipwrecks, sunken equipment, or debris. Available in various load capacities (from 100kg to 50+ tons), they feature secure rigging points, pressure relief valves, and corrosion-resistant fittings. Whether for marine construction, offshore oil operations, or archaeological recoveries, lift bags ensure efficient and safe underwater lifting.



Specifications


Product NameUnderwater Air Lift Bags
Raw MaterialTop-Notch PVC Coating Fabric
TypeParachute
Size500kg, 1000kg, 5000kg 10000kg,etc
Thickness0.4-1.2mm, or as request
ColorYellow,Blue,Black,etc
Density0.33-0.9g/cm3
Safety Factor7:1
AccessoriesValve, Inflatable Tube, Repair Material
OEMWelcome
Warranty3 Years

Tolerances

+/- 0.03 on densities

+/- 0.2 mm on thickness

+/- 0 to +3mm on width

+/- 0 to +3mm on length


ModelLifting CapacityDimensionsAppr. Weight
Parachute[kg][lbs][mm][kg]
HM-P012004418005
HM-P025001,1031,0008
HM-P031,0002,2051,30011
HM-P042,0004,4101,60020
HM-P054,0008,8202,00050
HM-P066,00013,2302,30066
HM-P078,00017,6402,50075
HM-P0810,00022,0502,70080
HM-P0915,00033,0753,100110
HM-P1020,00044,1003,400130
HM-P1130,00066,1503,900170
HM-P1250,000110,2504,600220
HM-P1370,000154,3505,200310
HM-P14100,000220,5005,800450
HM-P15150,000330,7506,600660
HM-P16200,000441,0007,300900
*Note: Other sizes can be customized according to the requirements.


Features


High Strength Materials
Constructed from reinforced nylon, PVC, or polyurethane for exceptional tear and puncture resistance.
Corrosion-Resistant Fittings
Stainless steel or anodized aluminum hardware prevents rust in saltwater environments.
Multiple Load Capacities
Available from 100kg to 50+ tons, catering to small recoveries to heavy salvage operations.
Pressure Relief Valves
Automatic venting prevents overexpansion and dangerous rapid ascents.

Applications


Shipwreck recovery

Sunken vehicle retrieval
Debris removal from waterways
Anchor recovery

Advantages


Chemical Oil Resistance
Our coatings resist degradation from hydraulic fluids, fuels, and marine pollutants.
Modular Air Compatibility
Works with scuba tanks, surface-supplied air, or low-pressure compressors.
Redundant Safety Systems
Some models feature dual air chambers to prevent catastrophic failure.
Custom Branding Sizing
We offer bespoke dimensions, logos, and labeling for commercial clients.


FAQ


1. What is an Underwater Air Lift Bag?
A durable, inflatable device used to provide controlled buoyancy for lifting submerged objects in marine, salvage, and diving operations.
2. How does an air lift bag work?
It is filled with compressed air to displace water, creating upward lift force proportional to its volume and the object's weight.
3. What are the main types of lift bags?
Open-bottom (for shallow water) and closed-cell (for deep water), with varying load capacities (100kg to 50+ tons).
4. What industries use these bags?
Marine salvage, offshore oil/gas, military, underwater construction, scientific research, and recreational diving.
5. Are lift bags reusable?
Yes, high quality bags are designed for repeated use with proper maintenance.
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15t Salvage Bags Reinforced Seams Long Service Life Easy To Repair

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