Ship Lifting Bags - Shipyard and Dry Dock Equipment

Ship lifting bags are heavy-duty inflatable marine airbags used to lift, refloat, move, launch, or support vessels during shipyard, salvage, and dry-dock operations. They are manufactured in custom diameters, lengths, lifting capacities, and pressure ratings.

ProShipWorks provides end-to-end support to source and supply Ship Lifting Bags for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.

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Product Information

Product Name Ship Lifting Bags
Product Category Shipyard and Dry Dock Equipment
Product Reference 1322
Brands / Manufacturers Evergreen Maritime, Hilong Rubber
Unit of Measure Piece

Key Features

Key Feature
1.   High-strength synthetic-tire-cord reinforcement
2.   Abrasion- and seawater-resistant rubber construction
3.   Inflatable design for controlled buoyancy and lifting
4.   Customizable dimensions and lifting capacity
5.   Reusable with suitable inspection and pressure control

Applications of Ship Lifting Bags

Application
1.  Ship launching and beaching
2.  Emergency vessel refloating and salvage
3.  Temporary vessel lifting and dry-dock support

Technical Specifications

Model Specification Value Unit
Custom marine lifting bag Construction Synthetic-tire-cord reinforced rubber —
Custom marine lifting bag Working pressure Manufacturer-rated; application-specific kPa
Custom marine lifting bag Nominal lifting capacity Determined by dimensions, immersion depth, and pressure tonnes
Custom marine lifting bag Dimensions Custom diameter and effective length m
Custom marine lifting bag End fittings Inflation valve, lifting eye, towing or restraint fittings as specified —

Standards, Certifications & Class Approval

Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.

Applicable Standards & Certification ISO 14409, Ship and marine technology—Ship launching air bags, is relevant to marine airbags used for ship launching and related operations. Manufacturer pressure tests, material certificates, and load-test documentation should be requested.
Class Approval Classification society acceptance is normally project-specific rather than universal. DNV, ABS, Lloyd's Register, Bureau Veritas, and ClassNK may review the lifting plan, bag certificates, inspection records, and test documentation when required.

Installation, Maintenance & Safety Information

Installation Notes Inspect the bag, valves, fittings, and restraint arrangement before use. Position on a clean, adequately supported surface, secure against rolling or displacement, connect calibrated inflation equipment, and inflate gradually while monitoring pressure, vessel movement, and clearances.
Maintenance Tips Rinse with fresh water after seawater exposure, dry before storage, and protect from sunlight, oil, chemicals, sharp edges, and excessive heat. Store partially relaxed as recommended by the manufacturer and perform periodic visual, valve, pressure, and load inspections.
Safety Notes Use only within the manufacturer-rated pressure, capacity, and operating configuration. Establish an exclusion zone, use secondary restraints and controlled venting, never stand beneath a suspended vessel, and ensure lifting plans are reviewed by competent marine and lifting personnel.

Request a Quote for Ship Lifting Bags

Contact ProShipWorks for marine or industrial product sourcing, quotations and delivery.

  • Vessel name and IMO number
  • ETA / vessel schedule
  • Berth or vessel location
  • Required quantity
  • Preferred delivery window
  • Shipping agent contact details

Other Shipyard and Dry Dock Equipment Products

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