High Load Capacity Marine Rubber Airbag

Introduction

Marine rubber airbags have emerged as a revolutionary technology in the maritime sector. These airbags play a crucial role in various operations related to ships, offering a cost - effective, flexible, and efficient alternative to traditional methods.

Function and Working Principle

The primary purpose of marine rubber airbags is to utilize their unique properties of low - pressure air charging and large - area bearing capabilities. This enables the completion of airbag discharging or launching operations for ships.
The airbags are designed with specific characteristics. They have a low inflating pressure, which means that they can be easily inflated without the need for high - pressure equipment. Their large bearing area allows them to distribute the weight of the ship evenly, reducing the stress on any single point. Additionally, after undergoing large deformations, they are easy to roll.
The process of using these airbags for ship launching is as follows: First, lifting airbags are used to lift the ship from the pier. This carefully controlled lifting action ensures that the ship is safely raised off the ground. Then, the ship is placed onto rolling airbags. Finally, steel cables are used to tow both the ship and the rolling airbags, gradually moving the ship into the water.

Construction and Durability

Marine rubber airbags are constructed from a composite material made up of high - strength fabric and rubber. This combination provides the airbags with the necessary strength and durability to withstand the heavy loads associated with ship launching and other operations.
One of the significant advantages of this construction is its repairability. In the event of damage, the airbags can be easily repaired. This not only extends their lifespan but also reduces the overall cost of ownership for shipyards and other users.

Application Scope and Adaptability

This method of using marine rubber airbags is highly adaptable. It can be applied to launching areas with different slopes and soil qualities. This flexibility makes it a viable option for a wide range of shipyards, especially those in inland rivers.
In China, for example, some small inland river shipyards have successfully used marine rubber airbags to launch small barges, tugboats, and flat - bottom boats with a dead weight of less than 200T. This shows the practicality and effectiveness of this technology in different scenarios.

Application Fields of Marine Airbags

Ship Upstream and Downstream

Thanks to extensive practice, the technology of using airbags for ship upstream and downstream activities has been proven safe and reliable.

This technology has been widely recognized in the shipbuilding and port construction industries at home and abroad. It has been successfully promoted in countries like the US, European nations, and those in Southeast Asia. It has become popular because it is flexible, cost-effective, and has a relatively simple operation compared to traditional ship-launching methods.

Marine airbags are extensively utilized in various aspects of port construction, especially in caisson jacking, transportation, and launching. In these operations, the unique properties of marine airbags, such as their large bearing area and ability to distribute weight evenly, make them an ideal choice.

Buoyancy Aid Salvage
Thanks to their high buoyancy and strong load - bearing capacity, marine airbags have become a popular choice in the rescue of stranded ships and other floating salvage operations. They can provide the necessary buoyant force to lift sunken or stranded vessels, facilitating the salvage process. This application not only helps to recover valuable ships and cargo but also contributes to maintaining the safety and order of waterways.

Initially established as Qingdao Luhang Marine Airbag Factory in 1988 and changed to Qingdao Luhang Marine Airbags and Fenders Co.,Ltd in 2011, Qingdao Luhang had been devoted itself to developing and manufacturing marine airbags and marine fenders for more than 2 decades.

The factory area is 56,000m² with building area of 21,000m². The company has registered capital of USD 3 million and fixed asset of USD1.2 billion. We have a full line of production equipment: rubber mixing machine, rubber roller machine, the China biggest vulcanization tanks, the biggest Press Inspection Machine, EVA foam processing machine, Foam shaping machines and SPUA spraying machine.

Through these years' development, we have full range of marine airbags and marine fenders:

Ship Launching Airbags for ship launching and docking in shipyards

Marine Salvage Airbags for salvaging sinked vessels or refloating objects from under water

Other Airbags for special usage

Pneumatic Rubber Marine Fenders for ships and docks berthing

Foam Filled Marine Fenders for ship and docks berthing

Fixed Dock Rubber Fenders for docks and wharfs

Marine Buoys

From the begginning we have been focusing on technological innovation. With a team of experienced technicans and engineers, we have developed some high tech marine products and got some petents. We have been approved as a supplier of Navy products.

Quality is our life line. We provide service of “three guarantees” (returning, repairing and replacing) on all our products in case of any defects due to the problems of material,manufacturing, performance under conditions of normal operation and maintenance.