High Buoyancy with Precision Control
Each lift bag provides up to 60 tons of buoyancy, depending on the
model. The cylindrical design ensures even distribution of lifting
force, reducing tilt and sway. Overpressure relief valves allow
operators to control ascent speed, ensuring safe, controlled lifts.
Multiple inflation ports enable sequential inflation for complex
loads, enhancing stability.
Heavy-Duty Tear Resistant Construction
Made from double-coated PVC or polyurethane fabric, the Boat Lift
Helper resists abrasion, punctures, UV exposure, and saltwater
corrosion. RF-welded seams maintain airtightness even after
repeated heavy usage. Reinforced webbing straps and stainless-steel
D-rings provide secure attachment points, making the bag suitable
for lifting irregularly shaped or heavy objects.
Fast Deployment and User Friendly Design
Compact, lightweight, and rollable, the lift bag can be easily
transported to remote or difficult-to-access sites. Standard scuba
or low-pressure air fittings allow for rapid inflation, reducing
operational time. Reinforced attachment points and modular design
permit the combination of multiple bags for heavier loads, offering
flexible solutions for different lifting requirements.
Enhanced Safety Features
High-visibility panels improve diver awareness underwater.
Anti-tear patches and secondary securing straps provide additional
safety during heavy lifts. Operational guidelines recommend slow,
monitored inflation and continuous observation, reducing the risk
of accidents while ensuring maximum control over the lifted load.
Applications
Vessel Salvage
Efficiently lift sunken or capsized boats, yachts, and commercial
vessels. Multiple bags can be used to balance weight distribution
and prevent tilting during ascent.
Offshore and Underwater Construction
Supports positioning and removal of pilings, anchors, pipelines,
and subsea structures. Cylindrical design reduces drag in currents,
allowing accurate placement of heavy objects.
Emergency Response and Rescue
Stabilize overturned vessels or lift submerged equipment in
disaster scenarios. Rapid deployment ensures timely response, while
reinforced materials maintain reliability under harsh conditions.
Industrial and Marine Projects
Modular use allows the Boat Lift Helper to handle both small-scale
lifts and large, complex marine projects, compatible with cranes,
winches, and standard rigging systems.
Why Choose Hongruntong Marine?
Cutting Edge Engineering and Design
Hongruntong Marine invests heavily in R&D to optimize buoyancy,
stability, and safety. Using fluid-dynamics simulations and stress
testing, engineers refine bag geometry, valve placement, and
attachment points for predictable performance in real-world
underwater conditions. This ensures maximum control during lifts
and minimal risk of sway or tilt, even in challenging environments.
Rigorous Manufacturing and Quality Assurance
All lift bags are produced in ISO 9001-certified facilities. Each
unit undergoes stringent testing, including hydrostatic and
buoyancy tests, seam strength verification, and valve inspection.
Serial number tracking allows full traceability, giving operators
confidence in the quality and reliability of every product.
Proven Global Performance
Hongruntong Marine’s lift bags are trusted by contractors and
salvage teams worldwide. From lifting 300-ton floating dock
sections in Norway to recovering 30-ton fishing vessels in the Gulf
of Mexico, our products have repeatedly demonstrated reliability,
efficiency, and safety under demanding conditions.
Comprehensive Customer Support and After Sales Service
We provide operation manuals, training materials, and 24/7
technical support. Spare parts, including valves and straps, are
readily available. Our engineers offer on-site guidance for large
or complex operations, ensuring safe deployment and optimal
performance. Customers benefit from proactive maintenance advice,
operational best practices, and long-term support, guaranteeing
value and reliability throughout the product’s service life.
FAQ
1. What lifting capacities are available?
Models range from 1 to 60 tons per bag. Multiple bags can be used
together to lift larger loads, e.g., three 20-ton bags lifting a
60-ton vessel.
2. How should the bags be inflated?
Inflation can be performed using scuba cylinders, surface-supplied
air, or low-pressure compressors. Gradual inflation with monitoring
is recommended to prevent sudden ascent. Overpressure relief valves
should be used to maintain safety.
3. How to maintain the Boat Lift Helper?
Rinse with fresh water after each operation, inspect seams, valves,
and straps, and store deflated in a dry, shaded area. Routine
inspection every six months ensures long-term reliability.
4. Can the lift bags be used with other rigging equipment?
Yes. Reinforced D-rings and webbing straps are compatible with
shackles, slings, cranes, and winches. Ensure balanced attachment
points and consider sequential inflation for larger, irregular
loads to maintain stability.
