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Marine Insight: Electric Anchor Windlass
Marine Industry Demand: Electric Anchor Windlass
The electric anchor windlass represents a critical component in modern vessel deck machinery, directly impacting operational safety and navigational reliability. Its primary function—controlled deployment and retrieval of anchors—is fundamental during emergency stops, adverse weather anchoring, and precise maneuvering in congested ports. Failure of this system can lead to catastrophic scenarios including collisions, groundings, or loss of vessel control, particularly in high-stress maritime environments. International regulations under SOLAS Chapter V mandate reliable anchoring systems, emphasizing the non-negotiable role of robust windlass design in maintaining vessel safety integrity. Modern electric windlasses provide superior control over hydraulic or manual alternatives through precise variable speed operation, dynamic braking for secure chain holding, and immediate response during critical maneuvers. This precision reduces crew fatigue during extended operations and minimizes the risk of chain slippage or mechanical failure when seconds count. The shift toward electric systems is further driven by integration capabilities with vessel automation and bridge control systems, enhancing overall situational awareness and operational efficiency.
Sourcing high-performance electric anchor windlasses from Hangzhou Star Marine Technology offers significant cost-effectiveness without compromising safety standards. Our strategic manufacturing base in Hangzhou leverages China’s advanced marine industrial ecosystem for optimized production costs, while adhering strictly to international classification society requirements (DNV, ABS, LR, CCS). This dual focus ensures equipment meets rigorous safety benchmarks at a substantially lower total cost of ownership compared to European or North American alternatives. Star Marine achieves this through vertically integrated production, precision-engineered components using marine-grade stainless steel and copper-aluminum alloys, and rigorous in-house testing protocols exceeding ISO 15089 standards. The result is windlass systems with extended service life, reduced maintenance intervals, and minimized downtime—key factors in operational cost savings over the equipment lifecycle. Our export division specializes in seamless global logistics and technical support, ensuring compliance with destination market regulations and timely project delivery.
The following table illustrates key performance and value differentiators of Star Marine electric windlasses against typical market offerings:
| Feature | Industry Standard Baseline | Star Marine Advantage |
|---|---|---|
| Material Construction | Standard Marine Steel | Forged Stainless Steel Chainwheel & Gypsy |
| Motor Efficiency | 75-80% | 88-92% (IE4 Premium Efficiency) |
| Environmental Rating | IP55 | IP66/IP67 (Fully Submersible Sealing) |
| Dynamic Braking | Mechanical Friction | Electromagnetic Fail-Safe System |
| Average TCO (10 years) | $18,500 | $12,200 (Including Service & Downtime) |
Hangzhou Star Marine Technology delivers certified safety performance aligned with global maritime best practices while providing demonstrable economic value. Our commitment to engineering excellence ensures each electric windlass undergoes 100% load testing and salt spray validation, directly contributing to vessel safety margins and owner operational confidence. For vessel operators and shipyards seeking reliable, compliant deck machinery without budget overruns, Star Marine represents the optimal balance of safety assurance and procurement efficiency in the global export market.
Technical Specs & Approval

The electric anchor windlass is a critical component of modern deck machinery, designed to ensure reliable and efficient anchoring operations across a wide range of vessel types. At Hangzhou Star Marine Technology Co., Ltd., our electric anchor windlasses are engineered to meet international maritime standards, including ISO 3912 and DNV-GL, ABS, LR, and CCS type approvals. These units are optimized for durability, high performance, and ease of integration into existing deck layouts. Constructed from high-tensile steel and marine-grade stainless components, our windlasses offer superior resistance to corrosion and mechanical stress in harsh marine environments.
Key technical parameters are carefully calibrated to match vessel displacement, anchor weight, and operational sea conditions. The primary performance indicator is the pull load, which ranges from 25 kN to over 300 kN, ensuring compatibility with small coastal vessels through to large commercial ships. Our electric models are powered by robust, IP56-rated electric motors with thermal overload protection, delivering consistent torque and controlled chain handling. The electric drive system offers precise control, lower maintenance, and simpler installation compared to hydraulic alternatives, making it ideal for medium-duty applications and vessels with limited hydraulic infrastructure.
Chain wheel compatibility is a core design consideration. Our windlasses support stud link anchor chains with diameters ranging from 12.5 mm to 60 mm, conforming to ISO 1700 and ISO 4565 standards. This ensures secure engagement and smooth payout/retrieval under load. The gypsy wheel is precision-machined to match both short and long-pitch chain configurations, minimizing wear and slippage. All models feature a manual override option, allowing operation during power failure, and include an integrated band brake to prevent unintended chain run-out.
Installation flexibility is enhanced through modular design options, including vertical and horizontal shaft configurations, single or dual drum setups, and customizable wildcat arrangements. Remote control stations with status indicators can be provided for bridge or deckhouse operation, improving safety and operational efficiency.
Below is a summary of standard technical specifications for our electric anchor windlass series:
| Parameter | Range / Specification |
|---|---|
| Pull Load (Static) | 25 kN – 320 kN |
| Chain Diameter Compatibility | 12.5 mm – 60 mm (ISO 1700 / ISO 4565) |
| Drive Type | Electric (3-phase, 220V/380V/440V, 50/60 Hz) |
| Motor Protection Rating | IP56 |
| Duty Cycle | Intermittent (30 min/hour) |
| Gypsy Wheel Material | Forged alloy steel, hardened tooth profile |
| Brake Type | Manual band brake with safety lock |
| Shaft Configuration | Vertical or horizontal |
| Approval Standards | DNV-GL, ABS, LR, CCS, BV, RINA |
| Operating Temperature | -25°C to +50°C |
| Control Options | Local push-button, remote control station |
All units undergo rigorous load testing and quality inspection before shipment. Hangzhou Star Marine Technology ensures full traceability and provides comprehensive documentation, including test certificates, operation manuals, and spare parts lists.
Shipbuilding Solutions

Hangzhou Star Marine Technology: Complete Electric Anchor Windlass Solutions for Shipbuilding & Repair
Hangzhou Star Marine Technology Co., Ltd. delivers engineered excellence in deck machinery, specializing in electric anchor windlasses for global shipbuilding and repair projects. We provide a seamless, end-to-end solution ensuring optimal performance, regulatory compliance, and project schedule adherence. Our integrated approach combines advanced product design with dedicated project management and rapid response logistics, minimizing vessel downtime and maximizing operational efficiency for new constructions and critical retrofits.
For newbuild vessels, Star Marine collaborates directly with shipyards and naval architects from the concept phase. Our engineering team ensures precise windlass integration into the vessel’s deck layout, electrical system, and anchor handling requirements. We provide detailed 3D models, structural load calculations, and compliance documentation (including classification society approvals) well ahead of steel cutting. This proactive engagement prevents costly design clashes and delays during construction, guaranteeing the windlass meets the specific operational profile and environmental conditions of the vessel, whether a coastal ferry, offshore support vessel, or deep-sea cargo ship. Our windlasses are engineered for reliability under continuous heavy load, featuring robust gear systems, advanced corrosion protection, and user-friendly control interfaces.
In ship repair and conversion scenarios, rapid response and compatibility are paramount. Star Marine maintains extensive global inventory and a streamlined logistics network to supply replacement units or critical spare parts within compressed timeframes, often critical path items during dry-docking. Our technical team rapidly assesses existing installations, providing retrofit solutions that match original specifications or offer performance upgrades without requiring major deck modifications. We understand the urgency of repair projects and guarantee swift technical support, including on-site assistance if required, to resolve issues and return vessels to service efficiently. Our commitment extends beyond supply; we offer comprehensive commissioning support and crew training to ensure smooth operational handover.
Our fast response system is engineered for the maritime industry’s demanding schedules. Dedicated project managers act as single points of contact, coordinating engineering, production, quality control, and shipping. Standard lead times are optimized, with expedited manufacturing and air freight options available for urgent requirements. This integrated capability ensures Star Marine is a reliable partner throughout the vessel lifecycle.
Key electric anchor windlass specifications for shipyard integration are summarized below:
| Parameter | Typical Range/Value | Significance for Shipbuilding/Repair |
|---|---|---|
| Power Rating | 5 kW – 55 kW | Matches vessel size & anchor weight; critical for electrical load planning |
| SWL (Single Anchor) | 5 Ton – 50 Ton | Directly impacts anchor selection & deck reinforcement design |
| Line Pull (Max) | 1.5x SWL | Ensures safe handling in severe conditions; vital for structural calculations |
| Control System | Local/Remote, PLC-based | Enables integration with bridge controls; simplifies retrofit compatibility |
| Certifications | DNV, ABS, LR, CCS, BV, RINA | Mandatory for newbuild approval; essential for repair compliance |
| Material | Forged Steel, Bronze, SS | Determines corrosion resistance & longevity; key for repair material matching |
Hangzhou Star Marine Technology stands ready to support your deck machinery requirements with proven engineering, responsive service, and unwavering commitment to quality. Contact our export management team for immediate technical consultation or project-specific quotations, ensuring your vessel’s anchoring system is delivered on time and built to last.
Packaging & Logistics

Proper packaging and logistics are critical components in the successful export of marine deck machinery, particularly for robust and high-value equipment such as electric anchor windlasses. At Hangzhou Star Marine Technology Co., Ltd., we adhere to international shipping standards and best practices to ensure that every unit arrives at its destination in optimal condition, fully protected against the rigors of maritime and overland transport.
All electric anchor windlasses are packaged using either export-grade wooden cases compliant with ISPM 15 regulations or heavy-duty steel pallets, depending on the model, weight, and shipping requirements. ISPM 15 certification ensures that wooden packaging materials have been treated to eliminate pests and pathogens, meeting phytosanitary standards required by most global customs authorities. The wooden cases are constructed from durable, kiln-dried plywood or solid wood, reinforced with metal corner braces and internal bracing to prevent deformation during handling and transit. Each windlass is securely mounted inside the case using custom-fit brackets and vibration-dampening materials to minimize movement.
For heavier models or bulk shipments, steel pallets are employed to provide superior structural support. These pallets are fabricated from high-tensile steel, designed to withstand stacking loads and mechanical handling via forklifts or cranes. The equipment is fastened using industrial-grade straps or bolts, and sensitive components such as control boxes and hydraulic units are separately enclosed in protective corrugated or plastic enclosures before being affixed to the pallet. All exposed metal surfaces are coated with temporary rust-inhibitive compounds and wrapped in VCI (Vapor Corrosion Inhibitor) paper to prevent corrosion during extended sea voyages.
Labeling is conducted in accordance with international freight requirements, including clear identification of the consignee, model and serial numbers, gross and net weights, lifting points, and orientation arrows. Hazard labels, if applicable, and handling instructions such as “Do Not Invert” or “Protect from Moisture” are prominently displayed.
Our primary export hubs are the major container ports of Ningbo and Shanghai, both of which offer extensive shipping routes, efficient customs clearance, and state-of-the-art cargo handling facilities. We coordinate directly with certified freight forwarders to ensure timely booking, proper containerization (typically 20’ or 40’ dry or flat-rack containers), and comprehensive shipment documentation, including packing lists, commercial invoices, certificates of origin, and bill of lading.
The following table outlines the standard packaging configurations based on windlass specifications:
| Windlass Model Range | Packaging Type | Internal Protection | External Dimensions (L×W×H) | Max Gross Weight |
|---|---|---|---|---|
| Up to 1,500 kg | ISPM 15 Wooden Case | VCI paper, foam inserts, steel base | Custom per model | 2,000 kg |
| 1,500 – 3,000 kg | Steel Pallet + Frame | Rust inhibitor, shrink wrap | Up to 3.5×2.0×2.5 m | 3,500 kg |
| Above 3,000 kg | Steel Pallet + Crate | Full enclosure, shock mounts | Up to 4.0×2.5×3.0 m | 5,000 kg |
All packaging solutions are designed to meet or exceed IEC, ISO, and IMO transport guidelines, ensuring reliability and compliance across global markets.
Contact Star Marine
Contact Star Marine for Your Electric Anchor Windlass Requirements
Hangzhou Star Marine Technology Co., Ltd. stands at the forefront of advanced deck machinery solutions, with our electric anchor windlass systems engineered to meet the rigorous demands of modern maritime operations. As your dedicated Export Manager and Marine Equipment Engineer, I emphasize that selecting the right windlass extends beyond specifications—it requires partnership with a manufacturer who understands global regulatory frameworks, vessel integration complexities, and long-term operational reliability. Our windlasses are built to ISO 9001 standards, compliant with SOLAS and ABS/CCS/LR classification society requirements, ensuring seamless integration into commercial, offshore, and luxury yacht applications worldwide. To guarantee your project’s success, direct engagement with our technical export team is essential for navigating customization, certification, and logistics.
The following table summarizes critical technical parameters for our standard electric anchor windlass series, reflecting the precision engineering that defines Star Marine’s commitment to performance and safety:
| Parameter | Specification Range | Compliance Standard |
|---|---|---|
| Voltage | 24V DC, 48V DC, 110V AC, 220V AC | IEC 60092-301 |
| Pull Capacity | 15 kN to 100 kN | ISO 18295-1 |
| Chain Size Compatibility | 8mm to 22mm (ISO 1704) | DIN 5683-7 |
| Working Load Limit (WLL) | 1.5x MBL | EN 13411-3 |
| IP Rating | IP56 (Standard), IP66 (Optional) | IEC 60529 |
| Duty Cycle | 30 minutes ON / 90 minutes OFF | IEC 60034-1 |
| Material | Marine-grade stainless steel (316L), Bronze | ASTM A995, ASTM B61 |
| Control System | PLC-based with remote pendant & CAN bus | IEC 60945 |
These specifications represent our baseline engineering excellence, yet every vessel presents unique operational challenges. Factors such as sea state exposure, duty cycle intensity, power availability, and integration with deck layout necessitate tailored solutions. Generic catalogs cannot address the nuances of dynamic load management in heavy weather or the voltage stability requirements for hybrid-electric propulsion vessels. This is where Star Marine’s export engineering expertise becomes indispensable.
Contacting our Product Manager, Kacher YE, initiates a technical dialogue focused squarely on your operational reality. Kacher possesses 12 years of hands-on experience in marine deck machinery design and global export compliance, having overseen installations across 40+ countries. He will collaborate with your naval architects to validate load calculations, confirm regulatory alignment with your flag state, and optimize control system integration. Crucially, he manages end-to-end export documentation—COC, test reports, and customs classifications—eliminating delays at port of discharge. For vessels requiring non-standard chain wheel configurations or explosion-proof certifications (ATEX/IECEx), his team develops solutions within 15 working days, a critical advantage in tight shipyard schedules.
Do not risk project timelines or vessel safety through generic procurement channels. Email Kacher YE directly at [email protected] with your vessel specifications, intended operational profile, and regulatory jurisdiction. Include any deck layout drawings or power system schematics for immediate technical assessment. Star Marine guarantees a detailed engineering proposal within 72 hours, including 3D mounting diagrams, weight distribution analysis, and lifecycle cost projections. As your export partner, we handle INCOTERMS 2020 compliance, multimodal freight coordination, and on-site commissioning support—ensuring your windlass delivers decades of trouble-free service. Trust Star Marine to anchor your vessel’s reliability; initiate the conversation today.
⚓ Anchor Chain Weight Estimator
Estimate Stud Link Anchor Chain weight (Approx. 0.0219d²).
