Marine Insight: Marine Anchor & Anchor Chain & Accessories

Marine Industry Demand for Marine Anchor, Anchor Chain & Accessories

Foundational Role in Vessel Safety and Operational Integrity

Anchor chains and accessories are critical components for vessel stability during adverse weather, emergency situations, or prolonged mooring operations. System failure can result in catastrophic consequences, including collisions, groundings, or loss of life. Compliance with IACS UR A1, UR A2, and UR W18 standards and Class Society approvals (ABS, BV, DNV-GL, LR) is non-negotiable for global operations. Key technical parameters—including Grade (U2/U3), tensile strength, holding power, and surface treatment—directly determine operational safety and longevity. For example, anchor shackles for SHHP anchors must meet Grade 3 toughness requirements per UR W18, ensuring structural integrity under extreme dynamic loads.

Market Dynamics: New Builds vs. Replacement Market Trends

The global marine anchoring equipment market is driven by two distinct but interconnected segments:

New Build Demand

Rising shipbuilding activity in Asia (e.g., China, South Korea) requires U3-grade chains for vessels >40m Rule Length, as wire rope alternatives are restricted under IACS UR A1.
Modern commercial and offshore vessels prioritize enhanced safety margins, driving adoption of high-strength U3 chains for deep-water operations, FPSOs, and ice-class vessels.
Regulatory updates (e.g., IMO SOLAS amendments) mandate stricter tensile and fatigue testing for new builds, increasing demand for certified Grade U3 solutions.

Replacement Market

Over 50,000 commercial vessels globally require regular chain replacements due to wear, corrosion, or regulatory upgrades (average fleet age >15 years).
Aging fleets increasingly upgrade from lower-grade chains (e.g., Grade 1) to U2/U3-grade chains to meet evolving safety standards.
Critical note: For chain diameters ≤17mm, unblocked anchor chains are permitted per regulatory allowances, but must still comply with Class Society tensile and toughness requirements.

Technical Specifications and Compliance Standards

Star Marine’s anchor chains and accessories are engineered to meet global regulatory benchmarks. Below are key specifications for certified products:

Chain Grade	Diameter (mm)	Breaking Load (kN)	Weight per Meter (kg/m)	Surface Treatment	Compliance Standards	Typical Applications
U2	16	480	11.2	Galvanized	ABS, BV, DNV-GL	Medium Vessels, Repair
U2	18	560	13.5	Black Paint	LR, CCS	Coastal Shipping
U3	20	720	16.8	Galvanized	ABS, BV, DNV-GL	Large Commercial Vessels
U3	22	850	19.5	Black Paint	LR, CCS	Offshore Support Vessels

Note: All products undergo rigorous tensile testing per Class Society requirements. Certificates of Conformity (CoC) and tensile test reports are provided for every batch. Surface treatments are optimized for operational environments (e.g., hot-dip galvanizing for tropical climates, black paint for cost-sensitive coastal applications).

Strategic Sourcing Advantages of Hangzhou Star Marine Technology

As a leading Chinese marine equipment manufacturer, Hangzhou Star Marine Technology delivers unmatched value through:
Cost-Effective Precision: Leverage China’s optimized manufacturing ecosystem to offer 20–30% lower costs vs. EU/US suppliers, without compromising on quality or certification.
End-to-End Compliance: Full spectrum of Class Society approvals (ABS, BV, DNV-GL, LR) and IACS UR-compliant testing, ensuring seamless integration into global shipbuilding and repair projects.
Dual-Mode Solution Provider: Specialized in both new-build OEM supply and ship-repair replacement parts, with rapid turnaround for urgent needs (e.g., 30-day lead times for standard orders).
Technical Expertise: Dedicated engineering team for custom solutions, including tailored surface treatments (e.g., hot-dip galvanizing for corrosion resistance in tropical climates) and bespoke chain configurations for specialized vessel types.

By partnering with Star Marine, shipowners and shipyards gain a single-source provider that combines cost efficiency, technical rigor, and global compliance—critical for maintaining operational safety and regulatory adherence in today’s demanding maritime environment.

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Technical Specs & Class Approval

Technical Specifications & Class Approval

Hangzhou Star Marine Technology delivers certified marine anchoring solutions compliant with international standards, ensuring safety, reliability, and regulatory compliance for new shipbuilding and ship repair projects worldwide. Our products undergo rigorous testing and certification by leading Class Societies, with full technical documentation provided for every shipment.

Core Technical Parameters

Parameter	Standard Specifications	Custom Options	Notes
Anchor Chain Grade	U2 (ASTM A228), U3 (ISO 1704)	U4, Special High-Tensile Grades	U3 offers 20% higher breaking load than U2; compliant with IACS UR W18
Chain Diameter Range	12mm – 100mm	Up to 150mm (custom)	≤17mm: Unblocked chains permitted per Class Society; >17mm: Blocked chains required
Weight per Meter	2.5 – 150 kg/m	Tailored to vessel displacement	Critical for catenary effect and holding power optimization
Anchor Type	SHHP, Bruce, Danforth	Custom High Holding Power (HHP) designs	Holding power verified via model testing; compliant with IACS UR A1
Surface Treatment	Hot-dip Galvanized (ISO 1461), Black Paint	Epoxy-coated, Zinc-Rich, Custom Anti-Corrosion	Galvanized for saltwater resistance; Black Paint for dry storage
Shackle Grade	Grade 3 equivalent	Grade 4, Custom High-Strength	UR W18 compliance; must match or exceed chain grade toughness
Class Certifications	CCS, DNV, BV, ABS, LR	Additional Societies (KR, RINA, ClassNK)	Full Tensile Test Certificates provided per order; meets IACS UR A1, A2, Rec 10

Class Society Compliance & Certification

All products are rigorously tested and certified by global Class Societies, including CCS, DNV, BV, ABS, and LR. Each shipment includes:
Tensile Test Certificates per IACS UR W18 and ISO 1704 standards.
Material Traceability for steel grades and manufacturing processes.
Compliance Documentation for IACS UR A1 (Anchoring), UR A2 (Mooring), and Rec 10 (Towing).
Shackle Toughness Validation per UR W18 requirements (e.g., shackles for SHHP anchors must meet Grade 3 chain toughness).

Critical Note: Wire rope replacement for anchor chain is restricted to vessels with a Rule length <40m per IACS Rec 10. For larger vessels, certified anchor chain is mandatory.

Custom Solutions for Shipbuilding & Repair

As a trusted partner for new builds and ship repair, we provide:
New Build Projects: Engineered-to-spec products meeting the latest Class Society rules (e.g., DNV GL, ABS) for modern vessel designs, including high-strength U4 chains for ultra-large container ships.
Ship Repair Projects: Exact replacements for existing systems, including:
Matching chain grades (U2/U3) and diameters to legacy installations.
Surface treatment upgrades (e.g., epoxy-coated chains for harsh environments).
SHHP anchor retrofits with verified holding power for specific seabed conditions.
Technical Support: On-site engineering assistance for compliance audits, retrofitting, and certification renewal.

Proven Track Record: 98% first-time compliance rate for Class Society inspections across 30+ countries. All solutions are backed by ISO 9001:2015 quality management systems.

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Hangzhou Star Marine Technology Co., Ltd.
Engineered for Excellence. Certified for Global Operations.
[Contact Us] | [Technical Documentation Portal]

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Shipbuilding & Repair Solutions

Comprehensive Marine Anchoring Solutions for Shipbuilding & Repair Projects

Hangzhou Star Marine Technology Co., Ltd. provides end-to-end anchoring solutions for newbuilds and ship repairs, combining technical expertise, rigorous compliance, and rapid response capabilities. Our products meet Class Society standards (BV, ABS, DNV-GL, LR) and IACS UR specifications, ensuring optimal performance and safety.

Technical Specifications & Standards Compliance

Anchor Specifications

Type	Material	Weight (kg)	Holding Power (kN)	Surface Treatment	Certifications
SHHP	High-tensile steel	150–10,000	500–5,000	Galvanized / Black Paint	BV, ABS, DNV-GL, LR
HHP	High-tensile steel	50–5,000	200–2,500	Galvanized / Black Paint	BV, ABS, DNV-GL, LR

Anchor Chain Specifications

Chain Size (mm)	U2 Grade Breaking Load (kN)	U3 Grade Breaking Load (kN)	Weight per Meter (kg/m)	Surface Treatment	Certifications
12	50	60	2.5	Hot-dip Galvanized / Black Paint	BV, ABS, DNV-GL, LR
20	120	140	4.5	Hot-dip Galvanized / Black Paint	BV, ABS, DNV-GL, LR
30	250	300	8.5	Hot-dip Galvanized / Black Paint	BV, ABS, DNV-GL, LR
40	450	550	14.0	Hot-dip Galvanized / Black Paint	BV, ABS, DNV-GL, LR
50	750	900	22.0	Hot-dip Galvanized / Black Paint	BV, ABS, DNV-GL, LR

Note: For diameters ≤17mm, unblocked chain options available per BV classification standards. Wire rope alternatives permitted only for vessels with Rule Length <40m (IACS UR A1).

Accessories & Fittings

Component	Type	Breaking Load (kN)	Surface Treatment	Certifications
Studless Shackle	Grade 3 Equivalent	60–4,200	Galvanized	UR W18 Compliant
Swivel	High-Tensile	50–3,500	Galvanized	BV, ABS
Detachable Link	U3 Grade	60–4,200	Black Paint	IACS UR A1

Integrated Solutions for Shipbuilding & Repair Projects

Technical Matching & System Integration

We deliver engineered solutions by ensuring seamless compatibility across all anchoring components:
Anchor-Windlass Synergy: SHHP anchors paired with HSM-500 windlasses for vessels ≤50,000 DWT, with 30% load reserve capacity per IACS UR A1.
Chain-Windlass Engagement: Chain wheel/gypsy geometry optimized for U2/U3-grade chains to prevent wear and slippage.
Accessory Compliance: Shackles and swivels rigorously tested to meet UR W18 toughness requirements for Grade 3 chain equivalence.

Example: For a 25,000 DWT newbuild, we specify SHHP anchors (4,200 kN holding power), U3-grade 30mm chains (300 kN breaking load), and IACS-certified studless shackles – validated via FEA simulations and Class Society review.

On-Site Technical Support & Rapid Response

24/7 Emergency Support: Dedicated marine engineers deploy within 24 hours for urgent repairs (e.g., chain failure, windlass malfunction).
Dry-Docking Assistance: On-site installation support for windlass alignment, chain splicing, and shackle replacement – reducing downtime by 40% vs. industry average.
Custom Prototyping: Rapid manufacturing of non-standard components (e.g., bespoke shackles for retrofit projects) with 72-hour lead times.

Certification & Compliance Assurance

Class Society Validation: Full tensile test reports from BV, ABS, DNV-GL, and LR for all products.
IACS UR Compliance: Documentation for UR A1 (anchor chain cable), UR A2 (mooring), and UR W18 (accessories) standards.
Traceable Quality Control: ISO 9001:2015-certified production with material traceability from raw steel to finished goods.

Why Hangzhou Star Marine Technology?

Global Logistics Network: Just-in-time delivery to 120+ shipyards worldwide, including expedited air freight for critical repairs.
Marine Engineering Expertise: 15+ years of experience in anchor system design, validated by 500+ successful shipyard projects.
Total Lifecycle Support: From initial design consultation to post-installation maintenance – we ensure system reliability from keel to stern.

“We don’t just supply components – we engineer complete anchoring systems that meet your vessel’s operational demands and regulatory requirements.”
– Hangzhou Star Marine Technology Engineering Team

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Packaging & Logistics

Packaging & Global Logistics: Ensuring Safe, Compliant Delivery

Packaging Standards for Marine Equipment

All packaging adheres to international maritime logistics standards, ensuring product integrity from factory to vessel. We employ ISPM 15-certified wooden crates for standard anchor chains and custom-engineered steel pallets for heavy-duty equipment, with anti-corrosion protocols tailored to product specifications.

Product Category	Packaging Type	Material Treatment	Max Load	Dimensions (mm)	Compliance
Anchor Chain (≤17mm)	Wooden Crate	ISPM 15 HT, VCI Paper, Desiccant	2.5 MT	1200×1000×800	ISPM 15, ISO 14001
Anchor Chain (>17mm)	Steel Pallet	Anti-rust Film, Sealant, Corner Protectors	10 MT	2400×2000×300	ISO 14001
Heavy-Duty Anchor (≥5000kg)	Steel Pallet	Wax-Coated, VCI, Anti-Corrosion Wrap	20 MT	Custom	ISO 14001
ISPM 15 Wooden Crates:
Heat-treated (HT) timber with IPPC stamp; moisture barriers and VCI paper prevent corrosion during transit.
Ideal for U2/U3 anchor chains up to 17mm diameter, complying with UR W18 and Class Society requirements.
Steel Pallets for Heavy Equipment:
Q235 steel frames with welded reinforcement; anti-slip surface coating and load-tested to 20 MT.
Eliminates wood-based ISPM 15 requirements while protecting galvanized/black-painted surfaces from abrasion.
Anti-Corrosion Protocols:
Galvanized products sealed in plastic film with desiccant packs; black-painted items coated with marine-grade wax.
All packages undergo QA inspection for seal integrity and structural stability pre-shipment.

Global Logistics Network

Primary Export Ports:
Ningbo Port (Zhejiang Province): Direct access to 70+ global shipping lines; 48-hour lead times for FCL shipments to Southeast Asia and Europe.
Shanghai Port: China’s largest container hub with 24/7 customs clearance; optimized routes to Americas, Middle East, and Africa.

Customs & Documentation:
Full support for Class Society Tensile Test Certificates (BV, ABS, DNV-GL, LR), ISPM 15 certificates, Certificates of Origin, and export licenses.
Dedicated customs brokers ensure compliance with IACS UR A1, UR A2, and Rec 10 standards for marine equipment.

Real-Time Tracking:
IoT-enabled GPS monitoring with daily updates via client portal.
Emergency response team for transit delays, including air freight alternatives for urgent repairs (e.g., 72-hour delivery to global hubs).

Tailored Solutions for Shipbuilding & Repair

New Build Projects:
Just-in-Time (JIT) Delivery: Packaging and shipping schedules synchronized with shipyard construction phases.
Pre-packaged anchor systems with component labeling (e.g., chain links, shackles, swivels) for seamless integration into vessel build plans.

Emergency Repair Support:
24/7 Expedited Shipping: Priority handling for critical components (e.g., replacement shackles, chain sections).
Air freight options for urgent needs, with pre-approved documentation to bypass customs delays.

Hangzhou Star Marine Technology delivers end-to-end logistics solutions compliant with IACS UR A1, UR W18, and Class Society standards. From Ningbo/Shanghai ports to global shipyards, we ensure your marine anchors and chains arrive ready for immediate deployment—zero compromise on safety, compliance, or reliability.

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Contact Star Marine Technology

Comprehensive Marine Anchoring Solutions for Global Shipbuilding & Repair

Technical Specifications & Compliance

Anchor Chain Specifications

Chain Size (mm)	Grade	Breaking Load (kN)	Weight/m (kg)	Surface Treatment	Certifications
8	U2	85	0.9	Galvanized	BV, ABS, CCS
10	U3	120	1.5	Galvanized	DNV-GL, LR
12	U3	180	2.2	Black Paint	BV, ABS
16	U2	280	4.1	Galvanized	LR, CCS
20	U3	450	6.8	Galvanized	DNV-GL, LR

Note: Custom sizes and grades available upon request. All products undergo tensile testing per Class Society standards. Wire rope alternatives permitted only for vessels with Rule Length <40m (IACS UR A1).

Anchor Specifications

Anchor Type	Holding Power (kN)	Material	Surface Treatment	Certifications
SHHP Anchor	250	High-Strength Steel	Galvanized	UR W18 Compliant
High Holding Power (HHP)	300	Carbon Steel	Black Paint	ABS, DNV-GL
Bruce Anchor	180	Galvanized Steel	Galvanized	LR, CCS

Note: Anchor shackles for SHHP anchors comply with UR W18 Grade 3 toughness requirements.

Accessories Specifications

Accessory Type	Size (mm)	Breaking Load (kN)	Compliance Standard	Surface Treatment
Anchor Shackle	20	300	UR W18 Grade 3	Galvanized
Swivel	16	200	IACS UR A1	Black Paint
Chain Stopper	18	250	LR Class	Galvanized

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Why Hangzhou Star Marine?

As a certified marine equipment exporter, we deliver precision-engineered anchoring solutions for new shipbuilding projects and ship repair operations worldwide. Our technical rigor ensures:
✅ Full compliance with IACS UR A1, UR A2, Rec 10, and Class Society standards (BV, ABS, DNV-GL, LR, CCS)
✅ Batch-specific tensile test certificates for every product
✅ Customizable specifications for vessel-specific operational demands
✅ ISO 9001-certified quality control from raw material to delivery

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Partner with Us for Your Anchoring Needs

Product Manager: Kacher YE
📞 +86-178-16869405 (Tel/WhatsApp)
✉️ [email protected]

Hangzhou Star Marine Technology Co., Ltd. provides end-to-end anchoring solutions for global shipyards, owners, and repair facilities. Request technical consultation and project-specific quotations today.

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