Propeller Underwater Lift Bag is a purpose-built lifting solution designed to make boat propeller installation and removal safer, faster and more controlled. Developed for marine maintenance teams, salvage operators and dive contractors, these specialist propeller bags provide reliable buoyancy support when handling heavy propellers underwater, reducing manual strain and improving control during alignment and fitting.
Manufactured by Subsalve USA, Subsalve propeller bags are recognised for their durability and consistent performance in harsh marine environments. Each bag features four lift points for secure rigging and load stability, plus a manual dump valve with lanyard for controlled venting during ascent and positioning.
Propeller lift bags are available in three standard sizes to suit typical propeller weights and vessel classes, with custom sizes available for specialist requirements. Every unit is individually tested prior to shipping and manufactured in accordance with key offshore and defence standards.
Key Features
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Designed specifically for propeller installation and removal
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Available in 100 lb, 200 lb, and 300 lb standard lift capacities
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Custom sizes available for non-standard propeller weights and applications
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4 lift points for stable, secure rigging
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Manual dump valve with lanyard for controlled venting and positioning
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Individually tested prior to dispatch
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Compliant with IMCA D-016-AIRBAGS, ABS, and U.S. Department of Defense Standards
Typical Applications
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Propeller removal for inspection, repair or replacement
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Propeller installation and alignment support
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Marine maintenance and ship husbandry
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Light salvage and recovery tasks involving propellers and thrusters
Product Specifications
| Model | Lift Capacity | Length | Width | Height | Packaged Cubic Dimensions | Weight |
| Standard | ||||||
| PB-100 | 110lb | 28in | 9in | 14in | 15in x 11in x 7in | 6lb |
| PB-200 | 220lb | 36in | 12in | 18in | 18in x 13in x 7in | 8lb |
| PB-300 | 330lb | 48in | 16in | 24in | 24in x 18in x 10in | 10lb |
| Metric | ||||||
| PB-100 | 50kg | 0.71m | 0.23m | 0.36m | 0.38m x 0.28m x 0.18m | 2.7kg |
| PB-200 | 100kg | 0.91m | 0.31m | 0.46m | 0.46m x 0.33m x 0.25m | 3.6kg |
| PB-300 | 150kg | 1.22m | 0.41m | 0.61m | 0.61m x 0.46m x 0.25m | 4.5kg |





