Boat Lift Helper Superior Elasticity Reliable Sealing High Pressure Endurance

Product Specification

Boat Lift Helper Superior Elasticity Reliable Sealing High Pressure Endurance

Description

Marine Rubber Airbags are a revolutionary solution for launching, landing, and transporting ships, as well as lifting heavy marine structures. Their portable design and high load-bearing capacity allow shipyards and marine contractors to perform operations that once required permanent infrastructure such as dry docks or mechanical slipways.

Constructed with multiple layers of premium natural rubber and high-strength synthetic cord fabric, Marine Rubber Airbags deliver superior elasticity, pressure resistance, and safety. They are reusable, easy to store, and deployable in almost any environment, from sandy beaches to industrial shipyards.

Case Study

In 2024, a major shipyard in West Africa used 28 Marine Rubber Airbags to launch a newly built 16,000-ton offshore supply vessel. The project site lacked a slipway, but by preparing a reinforced sand path and arranging the airbags properly, the vessel was successfully launched into the ocean within one working day. This operation saved the shipyard millions in potential infrastructure costs and shortened the project timeline by three weeks. The controlled rolling motion and shock absorption of the airbags prevented damage to the hull, demonstrating their reliability and safety for high-value assets.

This case highlights how Marine Rubber Airbags enable complex marine operations in locations without permanent infrastructure, offering an efficient, flexible, and environmentally friendly alternative.

Specifications

Features

High Load-Bearing Capacity for Large Vessels

Marine Rubber Airbags are designed to handle massive loads, from small fishing boats to vessels exceeding 30,000 tons. Their layered rubber-and-cord construction provides superior tensile strength, enabling them to sustain high working pressures without deformation or failure. This makes them ideal for large-scale ship launching and heavy lifting projects.

Superior Durability and Environmental Resistance

Built with abrasion-resistant outer rubber and high-tensile reinforcement layers, Marine Rubber Airbags are engineered to withstand harsh conditions such as saltwater, sharp debris, and fluctuating temperatures. They maintain performance under repeated inflation and deflation cycles, with a typical service life of more than 10 years.

Rapid Deployment and Portability

Unlike fixed slipways or floating docks, Marine Rubber Airbags can be transported by truck or container and deployed within hours. This flexibility allows shipyards and contractors to take on projects in remote or temporary locations without major capital investment.

Safety and Precision Control

The cylindrical design and high-friction surface provide stable rolling and shock absorption, preventing accidents and hull damage. Internal pressure can be precisely adjusted to control lifting force and rolling speed, ensuring smooth and predictable operations. Optional overpressure valves and anti-slip mats further enhance safety.

Application

Ship Launching and Landing:

Enable launching of new vessels and hauling of ships ashore for inspection or repair. Suitable for fishing boats, ferries, tankers, offshore platforms, and floating docks.

Heavy Lifting and Transportation:
Provide support for moving heavy marine structures, industrial modules, or large pipelines. Their portability makes them ideal for temporary or remote project sites.

Emergency Salvage and Buoyancy Support:
Quickly deployed to refloat sunken vessels or stabilize damaged ships. Their large buoyancy capacity and rapid inflation make them essential tools for emergency response teams.

Offshore Pipeline and Structure Installation:

Assist in transporting and positioning subsea pipelines or heavy offshore equipment where precise buoyancy control is required.

Why Choose Hongruntong Marine?
 

Industry Leading Engineering and Customization

Hongruntong Marine has over 20 years of experience designing and manufacturing Marine Rubber Airbags. Our R&D team uses advanced modeling and testing to optimize load capacity, pressure distribution, and safety margins. We offer full customization of diameter, length, and working pressure to meet unique customer requirements.

Strict Quality Standards and ISO-Certified Manufacturing

All airbags are produced using high-grade natural rubber and multi-layer synthetic cord fabric in ISO 9001-certified facilities. Automated winding and vulcanization processes ensure consistency and strength. Each airbag undergoes rigorous pressure, leakage, and tensile strength testing before shipment, guaranteeing reliable performance in the field.

Proven Global Performance

Hongruntong Marine products have been successfully deployed in over 40 countries. In 2022, our airbags helped refloat a 12,000-ton grounded cargo ship in Southeast Asia within 48 hours, saving millions in environmental and operational costs. In Europe, they facilitated the relocation of a massive floating dock to a new port, reducing project costs by 30%. These global successes highlight the reliability and versatility of our solutions.

Comprehensive Technical Support and After-Sales Service

We provide detailed operation manuals, on-site training, and spare parts to ensure safe and efficient deployment. Our technical experts assist customers in planning, executing, and troubleshooting complex projects. Ongoing support includes maintenance advice, rapid spare-part delivery, and repair kits, maximizing the lifespan and performance of every Marine Rubber Airbag.

FAQ

1. What sizes and working pressures are available?
Marine Rubber Airbags come in diameters from 0.8m to 2.5m and lengths from 5m to 24m. Working pressures range from 0.05MPa to 0.25MPa. Multiple airbags can be combined to support vessels exceeding 30,000 tons.

2. How are airbags used for launching or hauling vessels?
Deflated airbags are placed under the vessel’s hull at equal intervals. They are then gradually inflated to lift the vessel, and controlled rolling moves it toward or away from the water. Protective mats are recommended on rough surfaces.

3. How long do Marine Rubber Airbags last?
With proper maintenance—cleaning after use, inspecting seams and valves, and storing deflated in a cool, dry place—the airbags typically last 10–12 years, even under frequent use.

4. Can Marine Rubber Airbags be used for offshore or salvage operations?
Yes. They provide buoyancy and lifting capacity for salvage, pipeline installation, and offshore construction. Their rapid deployment and high pressure resistance make them ideal for challenging environments.