Marine Rubber Airbags Introduction

Marine rubber airbag is designed with soft rubber to lift and carry weights, based on log-rolling method. It is an innovative product of Chinese own proprietary intellectual property rights. It has wide application like ship launching & upgrading, caisson lifting & moving, heavy weights lifting, underwater-engineering buoyancy aid. The marine rubber airbag is not limited to space and heavy machinery, which could efficiently shorten the construction period and save lots of funds.

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Marine Rubber Airbags Application

1.Ship Launching & Upgrading

With more than 20 years development in China, marine rubber airbag is proved to be the most reliable and stable technique for ship launching & upgrading. It is applicable from tons of flat board to ten thousand tons of huge ship. Meanwhile, marine rubber airbag is also widely acknowledged by foreign dockyards, shipyards, port/harbour construction companies. Ship launching & upgrading technique with marine rubber airbag is also highly promoted in the markets, such as America, Europe, Southeast Asia.

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2.Weight Lifting & Moving

Marine rubber fend could be applied to caisson lifting, launching, moving and transporting in port constructing projects.

3.Buoyancy Aid & Salvage

Because marine rubber airbag has buoyancy force and load-bearing capacity, it is also widely used in sunken vessel salvage and Buoyancy Aid.

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buoyancy aid salvage

Jerryborg Marine Rubber Advantage

1.High Bearing Capacity

Main technical requirement of marine rubber airbag made by Jerryborg Marine are complied to ISO 14409 “Ships and marine technology – ship launching air bags”.

Jerryborg adopts new rubber formula and high-strength enhanced synthetic-tyre-cord layer, which improves the airbag’s bearing capacity two times more than ISO 14409-2011 standard.

The synthetic-tyre-cord layer of Jerryborg marine airbag adopts 1480dtex/2 chinlon tyre cord.

The strength & durability of airbag improves 40%, compared to polyester tire cord.

1480dtex/3 chinlon tyre cord is applied to specially designed airbag sometime.

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2.High Kneading-Resistance Capability

When the airbag is rolling under the ship bottom, it will suffer a “kneading force” from ship bottom and ground because of not uniform rolling speed, which could case problems like delamination, layer buckling, etc.

Jerryborg improved the manufacturing technique and raw material formula to strengthen kneading-resistance capability of the airbag and avoid worse accident .

Each layers of airbag are painting with specially formulated mucilage to dissolve dust & impurities.

The specially formulated mucilage

also higher the adhesiveness among each layers to guarantee the air tightness.

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3.New Anti-Explosion Design of End Metal Parts

The possibility of air leakage in the joint area of metal parts and rubber body at the ends is also increasing as working pressure of airbag is added. After using for times under high working pressure, the airbag would burst at the end metal parts and hurt the nearby workers or facilities.

Jerryborg invented the third generattion anti-explosion design of the airbag end part, increasing the bonding strength and air tightness between rubber body part and end metal part. Jerryborg Marine’s airbags are working very well under higher working pressure without potential safety hazard.

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4.Optimizing Structure Configuration

Jerryborg built a strength and intensity model to test compression performance, stress intensity and direction. After testing for many times, we got the stress changeing regularity and optimized structure configuration design. The new optimized airbag successfully passed blasting experiment and achieved good performance in practical use.

Hydraulic Blasting Test is an all-around ultimate test for the performance, material, structure design, manufacturing technique of marine airbags.

The testing result of Jerryborg Marine Airbag is beyond industrial standard

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Hydraulic blasting test for Jerryborg marine airbags Inspected by American customer and third-party detection institution

5.Good Abrasion-resistance Performance and High Ageing Resistance

The airbag is working under bad and poor condition, suffering from long time sunlight exposure, seawater corrosion, impurities pollution, etc. The surface of airbag must be equipped with high capability of abrasion resistance, ageing resistance, corrosion resistance.

Jerryborg airbag is made of natural rubber with special ingredients and unique manufacturing method. The finished airbag could working very well under above mentioned bad and poor working condition.

6.Higher Flexibility and Shock Absorption Capability

Jerryborg airbag is manufactured with unique integral twining technique. The airbag wall thickness is uniform with secondary seam in overlap joint. When rolling in slope and uneven ship path, the flexible airbag is helpful to reduce structure stress and ship launching risk.

Heavy distortion phenomenon would cause delamination among airbag layers, then to cause more serious accidents.

Such dangerous distortion phenomenon (like left size photo) in ship launching process never happened to Jerryborg Marine Airbags

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