Steel Cylindrical Buoys
Hongruntong Marine-Grade Steel Cylindrical Buoys represent the pinnacle of durability, reliability, and compliance for critical offshore, coastal, and inland waterway operations. Fabricated from hot-dip galvanized carbon steel to ISO 1461 standards, these robust buoys deliver exceptional corrosion resistance, structural integrity, and long service life — even under extreme weather conditions and constant saltwater exposure.
Key Features & Technical Advantages
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Premium Marine Construction
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Material: High-tensile steel with full hot-dip galvanization (minimum coating thickness: 85μm) for complete cathodic protection against rust and biofouling.
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Structure: Seam-welded cylindrical hull with reinforced internal ring stiffeners and watertight integrity (tested to 0.5 bar). Optional internal foam filling or compartmentalization available.
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Optimized Design for Stability
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Low center of gravity and uniform weight distribution ensure upright positioning in strong currents and waves.
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Smooth cylindrical profile minimizes hydrodynamic drag and marine growth accumulation.
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Heavy-Duty Load Capacity
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Engineered to withstand high-tension mooring, vessel impact, and sustained marker buoyancy.
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Standard models support auxiliary equipment (solar panels, lights, radar reflectors) via integrated mounting platforms.
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Compliance & Certification
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Manufactured in accordance with IMO Resolution A.889(21) and SOLAS guidelines for navigation aids (where specified).
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Optional OCIMF compliance for offshore mooring applications.
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Technical Specifications
| Parameter | Specification Range |
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| Diameter | 0.8m – 3.0m (customizable) |
| Height | 1.5m – 6.0m (modular extensions) |
| Shell Thickness | 6mm – 12mm (based on buoy class) |
| Freeboard | Optimized per application |
| Surface Finish | International Orange/White (RAL 2009/9016) or customer-defined |
Primary Applications
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Navigation & Channel Marking: Fairway, hazard, and cardinal buoys
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Mooring Systems: Ship arrestor buoys, CALM buoy attachments
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Offshore Infrastructure: Aquaculture net marking, oil rig safety zones
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Data Collection Platforms: Sensor deployment for environmental monitoring
Why Choose Our Steel Cylindrical Buoys?
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Lifecycle Value: >25-year design life reduces replacement costs and operational downtime.
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Global Deployment: Proven performance across tropical, temperate, and Arctic zones.
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Custom Engineering: Tailored dimensions, lifting lugs, chain plates, and access hatches.
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Sustainable: Fully recyclable steel construction with minimal ecological footprint.
Detailed Photos
