After more than 20 years of development in China, marine rubber airbags have proven to be the most reliable and stable technology for ship launching and outfitting. They are suitable for huge vessels ranging from flat-bottomed ships to 10,000-tonnage ships. Foreign shipyards, dockyards, and port construction companies have widely recognized marine rubber airbags. The technology of ship launching and outfitting with rubber airbags is also strongly promoted in markets such as America, Europe, Southeast Asia, and others.
Marine rubber airbags can be used for lifting, lowering, moving, and transporting sunken boxes in port construction works.
Due to the buoyancy and load-bearing capacity of marine rubber airbags, they are frequently applied in wreck salvage and buoyancy rescue operations.
Here are the advantages of Luhang Airbags:
1. High Load-Bearing Capacity
The key technical requirements for Luhang Marine's rubber airbags comply with ISO 14409 "Ships and Marine Technology - Ship Launching Airbags".
The synthetic tire cord layer of Luhang Marine's rubber airbags is made of 1480dtex/2 Chinlon tire cord, offering 40% higher strength and durability compared to polyester tire cord.
2. High Torsion Resistance
During the ship launching process, airbags are subjected to "torsional forces" from the ship's hull and the ground due to uneven rolling speeds, which may cause delamination, layer deformation, or other issues. Luhang has optimized the production process and raw material formulation to enhance the airbags' torsion resistance and prevent severe accidents.
Each layer of the rubber airbags is coated with a specially formulated adhesive to remove impurities and dust.
The adhesive also improves interlayer adhesion to ensure airtightness.
3. New Explosion-Resistant End Metal Parts Design
As the operating pressure of airbags increases, the risk of air leakage at the interface between metal parts and the end rubber body rises. Repeated use under high pressure may cause airbags to burst at metal parts, endangering nearby workers or equipment.
Luhang has invented explosion-proof design for airbag ends, improving the bonding strength and airtightness between the rubber body and end metal parts. Luhang Marine's airbags operate safely even under high pressure without potential safety hazards.
4. Structural Configuration Optimization
Luhang developed a strength and intensity model to test pressure performance, stress intensity, and direction. Through multiple tests, the stress variation law was identified, and the structural configuration was optimized. The optimized airbag successfully passed burst tests and has proven effective in practical applications.
Hydraulic burst testing is a comprehensive extreme test for marine rubber airbags, evaluating performance, materials, structure, and manufacturing processes.
Luhang Marine's airbag test results exceed industry standards.
Hydraulic Spray Test for Jerryborg Ship Airbags*: Tested by a U.S. client and a third-party inspection institution.
5. Excellent Wear Resistance & High Aging Resistance
Airbags operate in harsh conditions, such as prolonged sunlight, seawater corrosion, and contamination. Their surfaces must be highly resistant to wear, aging, and corrosion.
Luhang's airbags are made of natural rubber with a special composition and unique manufacturing techniques, ensuring reliable performance under the above rough conditions.
6. Higher Flexibility and Shock Absorption
Luhang's airbags are produced using a unique monolithic winding process, featuring uniform wall thickness and no secondary seams at overlapping joints. The flexible airbag helps reduce structural stress and launching risks when the ship rolls on slopes or uneven channels.
-Significant deformation may cause airbag layers to separate, leading to severe accidents.
Luhang Marine's airbags have never experienced dangerous deformations (as shown in the left photo) during ship launching.
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