Qingdao Florescence Co., Ltd.
Established in 1992, Qingdao Florescence Co., Ltd. has grown into a premier, large-scale Chinese manufacturer specializing in the engineering, production, and global supply of marine anchor chains, offshore mooring chains, and heavy-duty connection accessories. With over three decades of heavy industrial experience, we have proudly served as an approved military navy supplier since 1992, delivering high-end ground tackle solutions that satisfy the most stringent defense and commercial maritime protocols.
large enterprise scale
Efficient and precise processing and testing equipment.
Standardized Production
Passed ISO9001 certification and obtained relevant certificates.
High-Quality Customized Services
No intermediate links, providing one-stop service from design, processing, mold trial to mass production.
Production process


Since its establishment, our company has grown into one of China's leading manufacturers of anchor chains and mooring chains by leveraging the strengths of Qingdao Florescence Co., LTD.We specialize in manufacturing marine anchor chains of Φ16-132mm in standard grades AM2 and AM3, as well as non-standard chains and relevant fittings. Our products find extensive applications in a wide range of ships, offshore mooring projects and military equipment.
Anchor chains are indispensable to maritime operations. When ships dock at harbors or drop anchor in offshore areas, they link anchors to hulls, conveying the anchor's gripping force to keep vessels stable amid winds, waves and currents. They also serve offshore oil rigs and wind power farms, affixing floating installations to the seabed. During inter-vessel cargo transfers, anchor chains aid in precise positioning. Besides, they are applied in salvage missions to tow or mend stranded ships, and routine checks guarantee their dependability in severe marine environments.
FAQ
Q1: What sizes and material grades of anchor chains are available for procurement?
A: Our standard production lines manufacture stud link and studless anchor chains from ø16mm to ø132mm in high-tensile AM2 (Grade 2, CM490 steel) and AM3 (Grade 3, CM690 steel). For non-standard marine projects, our facility supports full dimensional customization spanning a complete range from ø11mm up to ø162mm, along with all matching accessories like Kenter shackles, swivel forelocks, and D-joining shackles.
Q2: What are the mechanical property differences between AM2 and AM3 anchor chains, and how do I choose?
A: The primary difference lies in the raw material steel grade and chemical composition, which dictate the ultimate tensile strength. AM2 chains utilize CM490 carbon steel (minimum tensile strength of 490 MPa), providing a cost-effective and reliable solution for standard coastal commercial vessels and harbor docking. AM3 chains utilize CM690 alloy steel (minimum tensile strength of 690 MPa) and undergo rigorous quenching and tempering heat treatments. AM3 should be selected for deep-sea vessels, military naval deployments, and high-load offshore energy mooring where maximum breaking loads and superior fatigue resistance are mandatory.
Q3: How does FLORESCENCE coordinate with classification societies (such as ABS, DNV, BV, or CCS) for anchor chain inspections?
A: We maintain long-term cooperative workflows with local offices of all major IACS members. Once an order is scheduled, we coordinate with the assigned class surveyors to perform on-site witness inspections at our factory. This includes raw material mill test checks, flash-butt weld visual and ultrasonic testing, mechanical property testing, and mandatory proof-load/breaking-load tests on our calibrated test beds. Upon successful validation, the official surveyor issues a matching Third-Party Inspection Certificate linked to the product's unique serial number, which is dispatched alongside your shipment.
Q4: Which anchor chain configurations and surface coatings do you recommend for permanent offshore wind mooring systems?
A: For permanent offshore wind farms or mooring buoys that remain submerged for decades, we strongly recommend Studless Anchor Chains in AM3 (Grade 3) or higher alloy steel. Studless chains eliminate the risk of studs loosening or falling out over long-term cyclic loading, which dramatically reduces localized structural fatigue. Regarding surface treatment, while black painted coatings are standard for commercial shipping, Hot-Dip Galvanizing (HDG) is highly recommended for offshore wind installations to provide long-lasting sacrificial cathodic protection against severe saltwater corrosion and seabed abrasion.
I China leading Anchor Chain manufacturer.
I Navy supplier since 1992.
I Professional team of engineers can provide solution for your project.
I ISO 1704, BV, CCS, NK, KR, ABS, RINA... certificated.
Our address
Building 13, MAX Technology Park, No.151 Wangjiang Road, Qingdao, China
Phone Number
+86-532-86760999 Ext: 802
info13@florescence.cc

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