Energy Saving Marine Salvage Air Lift Bags Cylindrical Body With Tyre Cord

2.2m x 15m Lifting and Launching Vessels Marine Rubber Air Bags in Shipyards

Marine air bags are widely used for ship launching and docking in shipyards, specially for medium and small shipyards alongside rivers and seasides in Asian and American countries. Marine airbags are often called ship launching airbags that indicate the most popular application of these heavy duty airbags is for ship launching. It is estimated that more than 80 percent new built ships who’s DWT below 60,000 are launched by marine air bags.

Key Features of Launching Vessel Marine Air Bags:

1. Flexible in various launching projects: Launching ship air bags can be made to be specified sizes and layers as per the requirement of different launching projects.

2. Easy Operation: The operation of launching vessels with rubber air bags is releatively easy, just laying out and inflating the air bags to lift the vessels and roll them to the water.

It has not strict requirement on slipway conditions. Ship launching can be executed even in tough conditions.

3. Durable and recycled: Marine Airbags can be used many times repeated.

4. Less cost: As marine airbags can be used repeatedly and its cost is not high, launching or docking ships with marine airbags can save much cost for shipyards or ship owners.

The Size and Specifications of Rubber Marine Air Bags

According to different launching requirement, marine rubber air bags can be made into various sizes and layers accoding to the ship size and weight and the launching or docking conditions.

Specifications of Several Sizes of Launching Vessel Marine Air Bags

How to Launch Vessels with Marine Air Bags

Below is the general process of launching ship with marine rubber airbags.

1. Get enough suitable airbags ready

2. Level and Clean the launching slipway to make sure no nails or sharp stones

3. Tie the ship to the winch with steel wire

4. Lay airbags under ship bottom at suitable locations

5. Inflate the airbags to lift the ship away from the blocks and remove the blocks

6. Lower the lifting height properly by releaseing some air

7. Slowly release the wire and roll the ship slowly backward to the water

Pictures of Our Ship Luanching Airbags on Site

Material and Construction of Luhang Marine Launching Air Bags

The marine air bag wall is constructed with layers of rubbers plates. The inner layers are reinforced with nylon cord net. These layers support the airbag with bearing strength when the airbag is inflated. More layers the airbag wall has, greater strength the airbag has. And the nylon cord net plays a critical role in strength. Besides the cord reinforced layers, there is one extra layer without cord net outside the wall. This rubber layer has a function of anti-wear and anti-aging. To maximize the function of the inner layers and the exterior layer, the rubber material is specially optimized with suitable mixing formulas.

Why Choose us and Our Ship Launching Marine Air Bags?

1. We are the leading and professional manufacturer of marine airbags with more than 20 years of developing and production experience

With mature technology, experienced workers and strict quality control carried out on each step, we confidently guarrantee the high quality of the airbags of every production lot, specially in air tightness.

Below is the marine airbag’s production flow showing the production process from material processing to the finishing step.

2. Credible company to make marine air bags with optimzied rubber material, enough sizes and enough layers

3. ISO certificated with a number of patents on products

4. Airbags have been inspected and approved by Third-Party like BV, SGS, V-Trust etc with excellent performance of high pressure and airtightness

This inspection report shows all airbags almost had no air leakage after 8 hours from initial pressure 0.15mPa-0.16mPa to 0.14-0.15mPa.

5. Satisfying and timely after-sale service: In case of any quality claims during the warranty period, we will carry out the Three Guarantees for repair, replacement and compensation of faulty airbags.

FAQ :

Q1. How to choose marine airbags for a launching project?

A: Choose suitables airbags according to the vessel’s size and weight and the planned lifting height.

You are welcome to contact us to with these information. We will figure out the suitable sizes and economy quantity.

Q2. How long is the lead time of an order?

A: Usually we finish the production of a normal order within 15 days. The lead time of special orders with large quantity or urgent delivery requirement should be confirmed before order confirmation.

Q3. Can you assist us to operate the launching at the site?

A: We would like to help our customers with the launching. We can provide with the launching plan and technique instructions. We also can send professional engineers to the site to supervise the launching.

Q4. Do you supply repair material and tools and teach us how to repair?

As per customer’s request, we would like to supply repair meterial: rubber plates and repair tools: auto heater. We would like to send complete videos on airbag repair to customers for them to learn.

Q5. What is the after-sale service?

We carry out the Three Guarantees for repair, replacement and compensation of faulty airbags within warranty period.

Contact Us

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.