Product Specification

Payment Terms	T/T, L/C	Supply Ability	30 Units Per Month
Delivery Time	10-15 work days	Packaging Details	Inflated or Deflated on Pallet
Product Name	Marine Rubber Airbag	Other Name	Boat Lifting Airbag
Material	Natural Rubber And Tyre Cord	Application	Ship Launching
Feature	No Air Leakage, Wearable, Easy Operation	Size	Customized
Color	Black	Highlight	Inflatable Lifting Salvage Airbags, Natural Rubber Salvage Airbags
Brand Name	Lu Hang	Model Number	LH2540
Certification	CCS/BV/ABS/SGS	Place of Origin	Qingdao, China
High Light	Ship Launching Marine Rubber Airbags ，Customizable Marine Rubber Airbags ，Lifting Marine Rubber Airbags

 

Customizable Marine Rubber Airbags for Ship Launching and Lifting

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What Is Marine Launching Pneumatic Airbags?

Marine launching inflatable airbags are a kind of professional equipment used in shipbuilding and launching operations. Structurally, it is generally composed of multiple layers of materials. The inner layer is a rubber layer with high airtightness, which is responsible for maintaining the air pressure in the airbag; the outer layer is composed of high-strength synthetic fiber cord layers, which are like the skeleton of the airbag, providing the airbag with strong tensile strength and bearing capacity, so that it can withstand the huge pressure and weight during the ship launching process. In the field of shipbuilding and launching, marine launching inflatable airbags have many advantages. First, it has a high carrying capacity. A single airbag can withstand hundreds of tons of weight, and the combination of multiple airbags can meet the launching needs of ships of different tonnage. Secondly, compared with traditional launching methods, such as dock launching or slide launching, the cost of launching with inflatable airbags is lower, and there is no need to build large, expensive dock facilities or complex slide systems. Furthermore, this airbag has good flexibility, can adapt to ships of different shapes and sizes, and is relatively easy to install and disassemble, which can shorten the preparation time for ship launching. In addition, the airbag can provide relatively stable support during the launching process, reduce the impact force on the ship, and play a certain protective role on the ship structure. Marine launching inflatable airbags are widely used in the launching operations of various types of ships, including small fishing boats, yachts, as well as large commercial ships and warships. Whether in professional shipyards or in some smaller ship repair yards, they can be seen.

Marine Launching Pneumatic Airbags are known as roller bags, launching air balloons, inflatable marine airbags, air lift bags, and salvage bags. Ship launching airbags are specialized marine rubber air bags that are used for launching marine vessels. ship landing or haul-outs. Marine rubber airbags are also widely used in loading, floating, lifting and moving sunken ships, and salvaging stranded boats. Rubber airbags are made of heavy-duty synthetic-tire-cord layers with inner and out rubber layers in a long cylindrical balloon shape.

Marine launching or upgrading using marine airbags is an innovative ship-launching technology. It overcomes the disadvantage of "end-on launching", "side ship launching", and "float-out". This marine-launching technology overcomes the restrictions of the fixed launching track of side-launch.

This flexible Marine launching technology is accepted by more shipyards worldwide because of its advantages of saving time, investment, flexibility, and safety. We are constantly innovating in terms of design, material usage, & manufacturing technologies throughout the years to ensure flexibility, safety, and reliability.

Up to now, more cargo vessels, barges, chemical tankers, tugboats, AHTS vessels, floating docks, and even construction caissons have all been launched using our ship-launching rubber airbags. The biggest vessel launched by ship launching airbags up to 100,000DWT.

All Doowin Marine ship launching airbags are manufactured and tested fully compliant with ISO 14409 Ships and marine technology - Ship launching airbags. To learn more technology, please kindly refer ISO 17682:2013 Ships and marine technology - Methodology for ship launching utilizing air bags.

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Material

 

Our engineering team constantly improves the quality

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Rubber Formula Tailored for Air Bag Products

Our company boasts a rubber formulator with 30 years of experience. This expert formulates the rubber according to seasonal changes and humidity levels. In summer, for example, the proportion of materials like carbon black is increased. This adjustment helps maintain the hardness and wear resistance of the air bags, ensuring they can perform optimally under different environmental conditions. Every time the formula is adjusted, the rubber properties are rigorously tested. Even when the formula remains unchanged, rubber property tests are conducted once every seven days to guarantee consistent quality.

 

Rubber Performance Surpassing International Standards by 20%
Our air bags are crafted from high - quality rubber. This choice of material significantly enhances wear resistance, thereby extending the service life of the air bags. The air bags produced by our company have a basic service life of up to 15 years, far exceeding industry expectations in terms of durability.

 

The Balloon Wall Becomes a Unified Whole under Pressure
After the air bag is formed, it undergoes a pressurization process. This causes the individual sheets to meld into a single, integrated unit. During the vulcanization process, we utilize high - pressure vulcanization with a temperature difference of less than 2℃. Our company firmly commits to never using the low - temperature and low - pressure vulcanization process, as it ensures the air bags' structural integrity and performance.

 

Stringent Factory - wide Inspection Requirements
Our company's inspection area is equipped to simultaneously test 20 air bags, each 20 meters in length. We enforce a factory - wide full - inspection policy. If any problem is detected during the inspection, the air bag will be promptly repaired or re - produced. Given that export air bags may face issues such as long transportation cycles and high costs, not to mention the potential impact on the project, our company strictly adheres to the principle of "resolving quality problems within the factory." This approach ensures that only products of the highest quality are delivered to our customers, both domestically and internationally.

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Structure of Marine Launching Pneumatic Airbags and End Fittings

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Marine launching pneumatic airbags typically feature a cylindrical balloon body. At both ends of the body, there are two conical heads, along with end mouths.

The swivels and air inlet kits are attached to the end mouths through a screwing mechanism. This connection method ensures a secure and stable attachment, enabling the airbags to function properly during the marine launching process. The design of the structure and the connection of the end fittings play crucial roles in the performance and usability of the marine launching pneumatic airbags.

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Specification

 

You are able to select the desired diameter and effective length to suit your projects. The following specifications are merely our standard range. We can also provide ship launching airbags in other specifications upon clients' requests.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Marine Launching Pneumatic Airbags Type And Model

Marine Launching Pneumatic Airbags: Type and Model Ship launching airbags are classified into three types based on their bearing capacity per meter of length. To determine the Safety Working Pressure, we specify the number of layers, referring to the number of Synthetic - tyre - cord layers. We can also offer other types as per clients' requests.

QP - Ordinary airbag

This type has 3, 4, or 5 cord fabric layers. It is suitable for general ship launching applications where the bearing capacity requirements are relatively moderate.

QG - High - bearing capacity airbag

With 6, 7, or 8 layers of cord fabric, this airbag is designed to handle higher loads. It can be used for launching larger ships or those with greater weight requirements during the launching process.

QS - Superhigh - bearing capacity airbag

Featuring 9, 10, or more layers of cord fabrics, this airbag is engineered for extremely high - load situations. It is ideal for launching large commercial vessels, warships, or other massive marine structures that demand exceptional bearing capacity.

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Marine Launching Pneumatic Airbags Performance

 

 

                                                  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The lifting capacity of air bags, especially those used for ship launching (airbag - lifting - capacity), is determined by specific principles. The bearing capacity of ship - launching airbags is calculated based on two key factors: the working pressure and the contact area. The working pressure is derived from the burst pressure and the safety working factor. Due to the flexible nature of rubber airbags, the contact area can be influenced by several conditions. These include the state of the ship being carried and the different positions relative to the ship's center of gravity during the processes of ship launching and landing. As a result, the bearing capacity of rubber airbags will change in accordance with the variations in the contact area.

 

Dia	Effective Length	Overall Length	Cord Layer	Rubber Plate	Lifting Capacity
M	M	M	Layer	Layer	Ton/meter	Ton/airbag
1200.0	17000.0	19064.0	4.0	1.0	6.98	118.64
1200.0	10000.0	12064.0	4.0	1.0	3.5	34.90
15000.0	10000.0	35800.0	4.0	1.0	19.5	195.41
1500.0	19000.0	21580.0	6.0	1.0	14.7	278.47
1500.0	10000.0	12580.0	6.0	1.0	14.7	146.56
1500.0	10000.0	12580.0	4.0	1.0	9.8	97.71
1200.0	10000.0	12064.0	4.0	1.0	7.0	69.79

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Why Choose Our Marine Launching Pneumatic Airbags

Superior Manufacturing & Quality Control Processes from the selection of raw materials to the highly skilled production process

 

High Lifting Capacity
Our air bags are meticulously engineered to offer an outstandingly high lifting capacity. What's more, they operate at low pressures, ensuring safety during use. Each single air bag has the ability to lift weights within the range of 300 to 500 tons. This extraordinary lifting power makes them a perfect fit for numerous heavy-duty applications. Whether it's in shipbuilding, large-scale equipment installation, or other industries that require moving massive loads, our air bags guarantee efficient and secure operations.

High Tensile Strength
Our air bags are built with heavy-duty synthetic-tire-cord layers serving as the core structural framework. These layers are the key to the air bags' exceptional tensile strength. Engineered to withstand high working pressures, they provide unwavering support and stability, even in the most extreme conditions. This remarkable strength not only allows the air bags to bear substantial loads but also significantly enhances their overall durability and performance. As a result, you can rely on our air bags to perform consistently, even under the most demanding circumstances.

Resistant To Abrasion
Our rubber airbags are reinforced with 6 to 12 plies of reinforcement layers. This substantial reinforcement equips them with the ability to endure a great deal of abrasion and puncture resistance. In challenging environments where they may come into contact with rough surfaces or be exposed to potential hazards during operation, their high resistance to abrasion ensures a prolonged service life. This means that you can use our air bags repeatedly without having to worry about premature wear and tear, maintaining consistent performance over time.

Long Lifespan
Designed with longevity in mind, our ship launching rubber airbags can last for over 10 years when properly stored. This extended lifespan is a clear indication of the top-notch materials and precise engineering that go into their manufacturing process. By choosing our air bags, you're making an investment that offers long-term use and reliable performance. This not only reduces the frequency of replacements but also helps you save costs in the long term, making our air bags a cost-effective solution for your heavy-lifting needs.

 

                                                                     Common Problem

 

What's the material of your products?

Our raw material is natural rubber, and rubber-dipped nylon cord fabric

What kind of your fabrication technology?

Our unique overall winding technology is different from the current mainstream airbag production technology. We innovate and improve on the basis of mainstream production technology. The airbag produced by the optimal winding angle technology can exert the maximum effect of the material, save the cost, and have a stronger lifting force.

What after-sales services do you provide after purchasing the airbag?

We provide comprehensive after-sales services, including technical support, maintenance services and usage guidance.And provide 12 months warranty

Do your airbags comply with international safety standards? Do you have any relevant quality certifications?

Yes ,Our airbags fully comply with international safety standards, including ISO 14409,we can also accept CCS ABS BV certification

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                                          How To Cooperate With Us?

 

WeChat/Whatsapp/Mobile
+86 19063952909

 

E-Mail
Fairy@luhanggroup.com