Marine Insight: Hall Anchor

The hall anchor, commonly known as the Hall-type stockless anchor, is a critical component in modern marine anchoring systems, widely adopted across commercial shipping, offshore support vessels, and large yachts due to its reliable holding power and efficient design. As a key element of vessel safety, the hall anchor ensures secure mooring in various seabed conditions, including sand, mud, and clay. Its ability to withstand dynamic loads caused by wind, waves, and current makes it indispensable for safe navigation and operational stability during port entry, anchorage, and emergency stops. The design of the hall anchor—featuring a pivoting shank and fluke assembly—allows for quick penetration into the seabed and optimal orientation regardless of the angle of pull, significantly enhancing its performance compared to traditional anchor types.

In maritime operations, the failure of anchoring equipment can lead to catastrophic incidents such as drifting, collisions, or grounding. Therefore, regulatory bodies including the International Maritime Organization (IMO) and classification societies such as Lloyd’s Register, DNV, and CCS mandate strict compliance with material strength, dimensional accuracy, and load testing standards for anchors. The hall anchor produced by Hangzhou Star Marine Technology Co., Ltd. is manufactured in full compliance with these international standards, specifically conforming to the requirements of ISO 3913:1977 and CCS certification protocols. Each anchor undergoes rigorous quality control, including chemical composition analysis of cast steel, non-destructive testing (NDT), and break-load validation to ensure operational reliability under extreme marine conditions.

Sourcing hall anchors from Hangzhou Star Marine Technology offers significant cost advantages without compromising on quality. As a specialized manufacturer based in China, the company benefits from optimized production processes, economies of scale, and direct access to raw materials, enabling competitive pricing compared to European or North American suppliers. Additionally, Star Marine maintains a vertically integrated manufacturing facility, allowing for tight control over production timelines and customization capabilities for non-standard anchor weights or configurations.

The following table outlines the standard specifications and weight ranges for hall anchors supplied by Hangzhou Star Marine Technology:

Anchor Mass (kg)	Shackle Diameter (mm)	Stockless Design	Compliance Standard	Typical Vessel Application
75 – 150	27 – 36	Yes	ISO 3913, CCS	Coastal Tugs, Small Barges
200 – 500	42 – 56	Yes	ISO 3913, DNV, LR	Cargo Ships, Supply Vessels
600 – 1,200	64 – 80	Yes	ISO 3913, ABS, BV	Bulk Carriers, Offshore Platforms
1,500 – 3,500	90 – 110	Yes	ISO 3913, all major IACS	Large Container Ships, Tankers

With an established export network spanning Southeast Asia, the Middle East, West Africa, and South America, Hangzhou Star Marine Technology delivers hall anchors with comprehensive documentation, including material test certificates, load test reports, and shipping coordination support. This combination of technical compliance, proven performance, and cost-effective manufacturing makes Star Marine a trusted partner for global maritime operators seeking reliable anchoring solutions.

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Technical Specs & Approval

Technical Specifications: Hall Anchor Systems

Hangzhou Star Marine Technology Co., Ltd. manufactures Hall anchors to stringent international maritime standards, specifically ISO 3911:2012 for stockless anchors. Our Hall anchors are engineered for optimal seabed penetration and holding reliability across diverse vessel types, from commercial cargo ships to offshore support vessels. Key technical parameters are rigorously controlled during production, with material grade, dimensional accuracy, and surface integrity being critical to performance. All anchors undergo non-destructive testing (NDT) per ABS, LR, or DNV requirements, ensuring structural soundness prior to shipment.

The primary material grades offered are U2 and U3, denoting distinct yield strength thresholds essential for calculating safe working loads. U2 anchors exhibit a minimum yield strength of 300 MPa, suitable for standard commercial applications, while U3 anchors achieve 400 MPa, providing enhanced resilience for heavy-duty or harsh-environment deployments. Weight tolerances are maintained within ±3% of nominal mass to guarantee consistent hydrodynamic behavior during deployment. Holding power ratios are inherently seabed-dependent but typically range from 4:1 to 10:1 relative to anchor weight in cohesive soils; these values are validated through certified model testing and field data. Surface treatment is exclusively hot-dip galvanization per ISO 1461, with a minimum coating thickness of 80μm to withstand prolonged seawater exposure. Dimensional compliance includes precise shank-to-fluke angle calibration (typically 45°–48°) and controlled crown radius to prevent fouling during retrieval.

Critical specifications for standard Hall anchor models are summarized below:

Parameter	U2 Specification	U3 Specification	Notes
Material Grade	ISO 4997 Grade U2	ISO 4997 Grade U3	Certified mill test reports provided
Yield Strength	≥ 300 MPa	≥ 400 MPa	Verified via tensile testing
Weight Range	50 kg – 15,000 kg	50 kg – 15,000 kg	Tolerance: ±3% of nominal weight
Holding Power Ratio	4:1 – 8:1 (sandy/clay seabeds)	5:1 – 10:1 (sandy/clay seabeds)	Soil-dependent; tested per OCIMF guidelines
Surface Treatment	Hot-dip galvanized (ISO 1461)	Hot-dip galvanized (ISO 1461)	Min. 80μm coating thickness
Finish	Smooth, defect-free shank/fluke	Smooth, defect-free shank/fluke	No weld spatter or sharp edges
Certification	ABS, DNV, LR, CCS, RINA upon request	ABS, DNV, LR, CCS, RINA upon request	Includes MTRs and NDT documentation

Holding power performance is significantly influenced by seabed composition, scope ratio, and deployment technique. While U3 anchors generally deliver superior holding in challenging conditions like rocky or high-current environments, U2 remains cost-effective for routine operations in moderate conditions. Galvanization quality is non-negotiable for export compliance; all coatings undergo adhesion and thickness verification to prevent premature corrosion. Dimensional drawings strictly adhere to ISO 3911, with fluke area and shank profile optimized for rapid setting.

For export shipments, anchors are coated with temporary anti-corrosion oil and secured on marine-grade timber cradles to prevent transit damage. Documentation includes full material traceability, third-party certification copies, and packing lists compliant with IMDG Code for sea transport. Clients should verify flag state approval requirements early in procurement, as some jurisdictions mandate specific classification society endorsements. Hangzhou Star Marine Technology ensures every Hall anchor meets or exceeds global regulatory expectations, providing reliable ground tackle solutions backed by comprehensive technical support.

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Shipbuilding Solutions

Comprehensive Anchoring Solutions for Shipbuilding and Repair – Hall Anchor by Hangzhou Star Marine Technology

Hangzhou Star Marine Technology Co., Ltd. delivers integrated anchoring equipment solutions tailored for both new shipbuilding projects and vessel repair operations. As a trusted provider in the maritime industry, we specialize in the supply of high-performance Hall anchors, engineered to meet international standards and the demanding requirements of modern marine applications. Our commitment to quality, precision manufacturing, and rapid response ensures seamless integration into shipyard workflows and emergency repair scenarios alike.

The Hall anchor, a widely adopted stockless anchor design, is renowned for its reliability, ease of stowage, and consistent holding power across various seabed conditions. Star Marine offers Hall anchors in a full range of sizes and weights, manufactured from high-tensile steel conforming to classification society standards including CCS, ABS, DNV, LR, and NK. Each anchor undergoes rigorous quality control, including material certification, dimensional inspection, and mechanical testing, ensuring compliance with IMO and IACS regulations.

For new shipbuilding projects, our engineering team collaborates closely with ship designers and naval architects to provide anchoring systems optimized for vessel type, operational profile, and geographic deployment. We supply complete anchor packages, including the anchor itself, shackle, swivel (if required), and配套 components such as anchor chains and windlasses, all sourced from certified partners and delivered as a coordinated unit. This turnkey approach reduces integration complexity and accelerates delivery timelines.

In ship repair and retrofitting scenarios, Star Marine provides rapid-response services to minimize vessel downtime. Our global logistics network enables expedited shipping to major shipyards and dry docks worldwide. We maintain strategic inventory levels of standard Hall anchor models, allowing for delivery within 7–15 days upon order confirmation. Custom configurations are also available with lead times optimized through lean production scheduling.

Our technical support team is available 24/7 to assist with anchor selection, certification documentation, and on-site installation guidance. Whether supporting a bulk carrier refit in Singapore or a new coastal tanker build in China, Star Marine ensures technical accuracy and supply chain reliability.

The following table outlines standard Hall anchor specifications available from Hangzhou Star Marine Technology:

Anchor Size (mm)	Weight (kg)	Stockless Design	Material Grade	Certification Options
32	180	Yes	M2 / M3	CCS, ABS, DNV, LR, NK
40	350	Yes	M2 / M3	CCS, ABS, DNV, LR, NK
55	780	Yes	M2 / M3	CCS, ABS, DNV, LR, NK
70	1,250	Yes	M2 / M3	CCS, ABS, DNV, LR, NK
85	2,100	Yes	M2 / M3	CCS, ABS, DNV, LR, NK

Star Marine’s Hall anchor solutions combine engineering excellence with export-ready efficiency, making us a preferred partner for shipbuilders and repair yards across Asia, Europe, and the Americas. Trust Hangzhou Star Marine Technology for anchoring systems that deliver performance, compliance, and peace of mind.

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Packaging & Logistics

Packaging & Logistics for Hall Anchors: Hangzhou Star Marine Technology Export Protocol

Proper packaging and logistics execution are non-negotiable elements in the global export of marine anchoring equipment, particularly for robust products like Hall anchors. At Hangzhou Star Marine Technology, we implement stringent, industry-standard protocols to ensure cargo integrity from our facility through final delivery. Hall anchors, due to their significant mass, structural complexity, and exposure to harsh marine environments during transit, demand specialized handling solutions that prevent corrosion, physical damage, and shifting. Our export process is meticulously designed to comply with all international maritime shipping regulations and port authority requirements, specifically tailored for shipments originating from the major Chinese export hubs of Ningbo and Shanghai.

All wooden packaging components, including crates, dunnage, and bracing, strictly adhere to the International Standards for Phytosanitary Measures No. 15 (ISPM 15). This mandatory global regulation requires heat treatment or fumigation of all raw wood packaging material exceeding 6mm thickness to eliminate the risk of pest transmission across borders. Our certified wood suppliers provide documentation verifying treatment compliance, and each wooden case bears the official ISPM 15 mark, including the country code, producer code, and treatment abbreviation (e.g., HT for Heat Treatment). This certification is essential for customs clearance in all major global markets and prevents costly delays or rejections at destination ports. Wooden cases are constructed from high-grade, kiln-dried lumber, featuring reinforced corners, internal bracing tailored to the anchor’s geometry, and desiccant packs to mitigate moisture ingress during ocean voyages.

For larger Hall anchor models or consolidated shipments, heavy-duty steel pallets serve as the primary transport base. These pallets are engineered with substantial load-bearing capacity and integrated lashing points compatible with standard container securing systems. Anchors are securely welded or bolted to the pallet structure using marine-grade fasteners, ensuring zero movement during handling and transit. The steel pallets themselves undergo a protective coating process to resist corrosion during extended sea exposure. Both packaging methodologies incorporate anti-corrosion measures such as VCI (Vapor Corrosion Inhibitor) paper wrapping and sealed polyethylene barriers directly applied to the anchor’s surface prior to final enclosure.

Our logistics coordination centers on the Port of Ningbo-Zhoushan and the Port of Shanghai, leveraging their world-class infrastructure, deep-water capabilities, and extensive global liner services. Hangzhou Star Marine Technology maintains established relationships with certified freight forwarders specializing in heavy-lift and project cargo. We provide precise stowage plans and lashing calculations meeting IMO CSS Code requirements. Final packaging dimensions and weights are confirmed well in advance to optimize container selection (typically 40ft High Cube or Flat Rack containers) and terminal handling operations. Rigorous pre-shipment inspections verify packaging integrity, marking accuracy (including proper UN hazard class labeling if applicable), and documentation completeness.

The following table summarizes our standard packaging specifications for Hall anchor exports:

Packaging Type	Typical Dimensions (L x W x H)	Max Anchor Weight Capacity	ISPM 15 Certification	Primary Use Case
Reinforced Wooden Crate	3.0m x 1.8m x 1.5m	Up to 8 tons	Full Compliance	Single medium Hall anchors; corrosion-sensitive finishes
Steel Transport Pallet	2.4m x 2.4m (Base)	Up to 15 tons	Not Applicable	Large Hall anchors; multi-anchor consolidated loads; heavy industrial shipments

Hangzhou Star Marine Technology guarantees that every Hall anchor shipment departs our facility meeting the highest standards of export readiness, ensuring your critical marine safety equipment arrives at its destination in perfect operational condition, ready for immediate deployment.

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Contact Star Marine

For global shipbuilders, marine equipment suppliers, and offshore engineering firms seeking high-performance anchoring solutions, Hangzhou Star Marine Technology Co., Ltd. stands as a trusted partner in the design, development, and export of premium marine hardware. As specialists in anchoring equipment, we are proud to offer our engineered-to-order hall anchor systems, built to meet international classification standards including ABS, DNV, LR, CCS, and BV. Our hall anchors are precision-forged using high-tensile steel, heat-treated for durability, and tested rigorously to ensure optimal holding power, reliability, and long service life in diverse seabed conditions.

At Hangzhou Star Marine Technology, we understand that anchor performance directly impacts vessel safety, operational efficiency, and compliance with maritime regulations. That’s why our engineering team works closely with clients to customize hall anchor specifications based on vessel type, displacement, operational profile, and environmental exposure. Whether you are outfitting a newbuild bulk carrier, offshore support vessel, or inland waterway barge, our anchors are designed to deliver consistent, secure holding power under dynamic load conditions.

To ensure seamless integration into your project timeline, we maintain strong production capacity and quality control protocols at our ISO 9001:2015-certified manufacturing facility. Our export logistics team coordinates global shipments with documentation compliant with INCOTERMS 2020, customs regulations, and port handling requirements, ensuring on-time delivery to shipyards and distributors worldwide.

For technical inquiries, project quotations, or certification documentation related to our hall anchor product line, we invite you to contact our dedicated Product Manager, Kacher YE. With extensive experience in marine hardware export and technical sales, Mr. Ye serves as the primary liaison between our engineering team and international clients. He is available to provide detailed product specifications, coordinate sample requests, support tender submissions, and assist in anchor selection based on your vessel’s particular needs.

Below are key technical parameters commonly associated with our standard hall anchor range. Custom configurations are available upon request.

Parameter	Specification Range
Anchor Type	Hall Type (Stockless)
Material	Grade A, B, or AS Cast Steel (ASTM A148 / GB/T 1102)
Weight Range	75 kg – 15,000 kg
Conformance Standards	ISO 3913:2014, CCS Anchor Rules, IACS UR A2
Certification	ABS, DNV, LR, BV, NK, KR, RINA, CCS
Finish	Shot-blasted, Primer-coated (epoxy optional)
Supply Scope	Anchor, Shackle, and Certification Pack

To initiate a technical discussion or request a project-specific quotation, please reach out directly to Kacher YE via email at [email protected]. We respond to all inquiries within 24 business hours and offer virtual meetings for in-depth project consultations. Partner with Hangzhou Star Marine Technology for anchoring solutions engineered for performance, backed by global service and technical excellence.

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