Recently, Qingdao SunKai Marine Supplies Co., Ltd. (SunKai Marine) completed a new round of special finished-product testing for all batches of its marine airbags. Strictly adhering to the national standard GB/T 33487—2017, the shipbuilding industry standard CB/T 3795, and the international maritime standard ISO 14409, the company successfully accomplished core testing items—including appearance, dimensions, airtightness, load-bearing capacity, and burst pressure—through full-process, multi-dimensional, and high-standard performance verifications. All ex-factory product parameters were fully compliant, building a solid safety foundation for maritime operations such as vessel launching, hauling-out, and salvage operations.
As core pressure-bearing protective equipment in shipbuilding and repair, vessel shifting, shipwreck salvage, and bridge construction, the stability and safety of marine airbags directly impact maritime engineering safety. The professionalism and standardization of the testing process serve as key metrics for evaluating product quality. As a source manufacturer specializing in the R&D, production, and sales of marine rubber products, SunKai Marine prioritizes product quality above all. The enterprise has established a four-tier quality control system covering raw material sampling, in-process inspection, 100% finished product testing, and type-test sampling. Going beyond standard basic testing, the company has refined over ten national standard testing items into more than 100 meticulous quality control checkpoints, achieving seamless oversight across all production and testing stages.
This finished product testing was independently executed by the company's professional quality inspection team, strictly following domestic and international maritime product testing standards across the entire range of airbag specifications. During the testing process, personnel systematically executed precision operations: visual and tactile checks were performed to inspect for defects such as air bubbles, cracking, delamination, and abrasion on the rubber layers; precision instruments were utilized to verify diameter and length tolerances; and core performance testing focused on key experiments including 24-hour long-term airtightness tests, rated load-bearing compression tests, ultimate burst pressure tests, and compression rebound performance tests. These tests accurately captured product behavior under high-pressure, heavy-load, and repeated-deformation conditions, comprehensively validating pressure stability, sealing capability, and durability.
Compared to conventional industry testing methods, SunKai Marine's inspection system offers greater rigor and comprehensiveness. In addition to routine mandatory ex-factory inspections, the company regularly conducts type-test sampling to simulate extreme maritime conditions—such as sea winds, seawater corrosion, high and low temperature environments, and sustained pressure. This deeply evaluates anti-aging, tear resistance, and anti-deformation capabilities, effectively eliminating safety hazards such as air leakage, insufficient load-bearing, or structural failure, ensuring suitability for diverse operations in ocean-going vessels, inland water engineering, offshore salvage, and port maintenance.
With standardized manufacturing techniques and rigorous inspection procedures, SunKai Marine's full product lineup—including multi-layer winding marine airbags, salvage and rescue airbags, and construction buoyancy airbags—has passed authoritative tests while demonstrating high load capacity, excellent airtightness, wear/corrosion resistance, long operational lifespan, and resistance to deformation. All dispatched products are accompanied by complete inspection reports and compliance documentation, fully satisfying domestic maritime engineering construction standards and overseas export certification requirements. They are highly trusted by domestic and foreign shipyards, port engineering enterprises, and maritime construction teams, with products exported to Southeast Asia, the Middle East, and other regions worldwide.
Quality as the foundation, safety as the core. Looking forward, Qingdao SunKai Marine Supplies Co., Ltd. will continue to specialize in marine rubber products, optimize manufacturing techniques and testing standards, and strictly control every process and parameter. Driven by quality control standards that exceed industry norms and align with international benchmarks, SunKai Marine will build high-quality marine airbags, marine fenders, and bridge anti-collision piers, delivering safe, reliable, and durable maritime products to support the high-quality, safe development of the global maritime industry.
