Import Changlin Brand High Strength Marine Airbag — Buy in Bulk from Supplier in China

The Changlin high strength marine airbag is a specialized lifting and launching device constructed from layered synthetic rubber and reinforced polyester fabric, designed to support vessel weights up to 15,000 metric tons. It features a cylindrical shape with reinforced end caps and integrated pressure relief valves, with standard diameters ranging from 1.2 meters to 3.5 meters and lengths from 6 meters to 25 meters, as specified in the product data. These dimensions allow for modular deployment in shipyards for launching vessels of varying displacement without requiring dry docks.

The material composition includes a butadiene-nitrile rubber outer layer with a polyester cord carcass, providing resistance to seawater, UV exposure, and abrasion from rocky seabeds. This construction aligns with the typical industry standard for marine airbags used in ship launching, where service life exceeds 50 cycles under proper maintenance. The airbags are not inflatable with compressed air alone; they require a controlled nitrogen or dry air supply to prevent condensation and corrosion inside the bladder.

These airbags are primarily purchased by shipyards in Southeast Asia, the Black Sea region, and Latin America for vessel launch operations, repair berthing, and dry-dock alternatives. Buyers typically require delivery in bulk sets of 4 to 12 units, packed in heavy-duty polypropylene sacks with protective covers. Trade terms commonly offered include FOB Qingdao or CIF to major ports, with lead times of 30 to 45 days after deposit. Minimum order quantities are not listed but are generally negotiated per project scale.

Jinan Changlin Air-Bag Container Factory Co., Ltd. is a manufacturer based in Jinan, Shandong Province, with a registered address at No.317 Jiqi Road. The company is listed as an imported supplier with harbor trust tier, indicating it has passed basic export compliance checks. There is no public data on years in operation, workforce size, or revenue. The supplier does not claim certifications such as ISO or CE, nor does it list past clients or project references in the provided data.

The supplier’s profile shows no verified response rate or average response time, suggesting limited engagement with buyer inquiries. Its operational focus appears to be on manufacturing marine airbags for export, with no indication of downstream services such as installation support or technical training. The absence of certification claims or client testimonials implies buyers must validate performance through independent testing before large-scale procurement.