Stud Link Anchor Chain-OLIPORTS Marine Mooring Solution

OLIPORTS Stud Link Anchor Chain

What is a stud link anchor chain? It is a specialized marine mooring chain featuring a transverse “stud” (a metal bar) in the center of each link. This design is the gold standard for medium- to large-sized vessels and offshore platforms.

Compared to studless (open-link) anchor chains, bar-link anchor chains offer greater tensile strength, exhibit less deformation under load, and are less prone to tangling when stacked in the chain locker.

As a leading China stud link anchor chain manufacturer, OLIPORTS offers certified marine mooring chain solutions, including U2, U3, CM490, and CM690 grades, to ensure the safety of your anchor mooring systems.

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Technical Features of Stud Link Chain

Item	Specifications
Material Options	Hot-rolled anchor steel (CM490, CM690), Stainless Steel 316, 316L
Chain Grades	Studlink Chains available in Grade 2 and 3
Diameter Range	φ12.5mm — φ122mm
Finishing Options	Hot dip galvanized, Black painted
Surface Treatment	Self Color / Galvanized / Black Painted
Length per Shot	27.5 meters
Standards	Stud-link anchor chains – ISO 1704:2008
Certifications	IACS-certified by DNV, GL, ABS, LRS, RINA, BV, NK, KR, IRS, RS
Category	Marine Mooring; Anchor Chain; Stud Link China
Tags	Studlink Chain; Studless Chain; anchor mooring system; CM690 anchor chain

Why Use Stud Link Chain

Enhanced Strength: Crossbars reinforce each chain link, preventing bending under heavy loads, making them an ideal choice for anchoring large vessels and high-stress marine operations.

Prevents Deformation: The crossbars prevent chain links from collapsing under extreme tension.

Prevents Tangling: Ensures the anchor chain moves smoothly through the windlass without kinking.

Weight Advantage: The added weight enhances the catenary effect, increasing the holding power of the entire anchoring and mooring system.Reduced Wear: By stabilizing the links, the crossbars minimize friction and wear between adjacent links.

Professional Grading & Technical Specifications

OLIPORTS offers a comprehensive range of stud link anchor chain specifications that meet international maritime standards.

Chain Diameter (mm)	Grade 2 Proof Load (Kn)	Grade 3 Proof Load (Kn)	Grade 2 Breaking Load (Kn)	Grade 3 Breaking Load (Kn)	Normal Weight (per length of 27.5m )
14	82	116	116	165	130
17.5	127	179	179	256	190
19	150	211	211	301	225
26	278	389	389	556	420
30	368	514	514	735	565
40	640	896	896	1280	1007
48	908	1270	1270	1810	1438
54	1140	1590	1590	2270	1820
66	1660	2310	2310	3300	2689
87	2750	3850	3850	5500	4760
117	4650	6510	6510	9300	8445
142	6450	9030	9030	12910	12515
162	7990	11180	11180	15980	16210

The specifications listed above represent only a selection of our standard anchor chain sizes and are provided for general reference. To meet the requirements of different ship classes and offshore engineering applications, we can also offer a wider range of diameters, custom lengths, special strength grades, and project-specific configurations.

Need complete specifications for chain slings, breaking load data, or custom sizes? Contact us today to receive a comprehensive technical manual and expert selection support.

How to Choose Stud Link Anchor Chain

As a professional China stud link anchor chain manufacturer, OLIPORTS suggests considering the following factors:

Vessel / Structure Type: Dimensions, weight, and operating conditions determine the required chain strength.
Operating Environment: Seawater corrosion, extreme temperatures, and seabed conditions influence material selection.
Strength Requirements: Select U2 notched anchor chain (standard) or U3 notched anchor chain (high strength) based on the working load.
Material Selection: CM490 chain is suitable for general applications; CM690 anchor chain is suitable for high-stress environments
Certification Requirements: Ensure compliance with flag state regulations and classification society requirements (IACS certification is mandatory for most commercial vessels)
Length Calculation: Determine the required chain length based on water depth, safety margin, and anchor typeSurface Treatment: Hot-dip galvanizing (HDG) provides maximum corrosion protection; black paint treatment is suitable for specific aesthetic requirements

OLIPORTS engineering team offers free consultations to help you select the best grooved anchor chain for your project.

Looking for Stud Link Anchor Chain for Sale?

Contact OLIPORTS today to get the best factory-direct prices on high-quality mooring chains with links. Our engineers are ready to help you design the perfect marine mooring chain configuration.

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Stud Link Chain Frequently Asked Questions

Why use stud link chain instead of studless?

Stud link chain offers superior tensile strength, better fatigue life, prevents kinking, and provides a better catenary effect for anchoring. It is the preferred choice for large vessels and offshore operations.

What is the purpose of the stud in a stud link chain?

The stud improves the rigidity of each chain link, reduces deformation under heavy loads, and helps distribute stress more evenly throughout the chain.

What standards do OLIPORTS stud link chains comply with?

OLIPORTS studlink chains are manufactured in accordance with ISO 1704, DIN, GB, and the requirements of major classification societies.

How do I choose the right stud link chain size?

This must be determined based on the vessel’s dimensions, anchor weight, working load, and maritime regulations; OLIPORTS can assist with model selection based on the project parameters.

What is the difference between U2 and U3 grades?

U2 uses CM490 steel (≈490 MPa yield strength) for general applications. U3 uses CM690 steel (≈690 MPa yield strength) for deep-water and heavy-load applications.

What is the standard length of anchor chain?

The standard section length is 27.5 meters. Custom lengths are available upon request.

How do you ensure quality control?

100% load testing, UT/MT non-destructive testing, hardness verification, and dimensional tolerance control (±0.5 mm). Each batch is signed off by an engineer before shipment.

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OLIPORTS offer: Technical Datasheet PDF、Material Certificates、DWG or STEP files for design integration、On-request layout support. Our lashing experts typically reply within 24 hours.

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