The Four-Link Portal Crane is a high-performance, mobile, full-revolving crane designed for heavy-duty operations in ports, dockyards, metallurgy, and construction. Its four-bar linkage mechanism ensures superior stability, precision, and efficiency in material handling.
Compliant with GB, ISO, FEM, and JIS standards, this crane is engineered for durability, safety, and optimal performance.
Key Advantages of Four-Link Portal Crane
1. Superior Structural Design
Four-link suspension system ensures horizontal movement stability, reducing load sway.
Balanced jib & counterweight system enhances lifting precision.
Two portal frame options (cylinder/four outriggers) for flexible deployment.
2. High Efficiency & Performance
Long boom reach – Ideal for large vessels and wide operational areas.
Smooth start/stop mechanism – Minimizes jerks, ensuring safe load handling.
Low power consumption – Energy-efficient operations reduce costs.
3. Safety & Reliability
Compliant with GB6067-85 (safety standards) & GB3811-08 (crane design).
Advanced braking & overload protection for accident prevention.
Stable travel mechanism prevents derailment and ensures smooth movement.
4. Durability & Low Maintenance
High-strength steel construction (jib, A-frame, gantry) for long-term use.
Modular components – Easy replacement & maintenance.
Corrosion-resistant materials for harsh environments (ports, metallurgy).
5. Operator Comfort & Control
Spacious cabin with excellent visibility – Reduces fatigue.
Low-noise operation – Improves workplace conditions.
User-friendly controls – Enhances precision in cargo handling.
Standards & Certifications
GB17495-1998 (Harbor portal crane specifications)
GB6067-85 (Lifting equipment safety)
GB3811-2008 (Crane design standards)
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ISO, FEM, JIS, DIN, IEC, AWS compliance
Applications
✅ Ports & Terminals – Container, bulk cargo, and ship loading/unloading.
✅ Dockyards & Shipbuilding – Heavy machinery & material handling.
✅ Metallurgy & Mining – Raw material transport (steel, ore, ingots).
✅ Construction & Infrastructure – Lifting beams, prefabricated structures.
✅ Logistics & Warehousing – Large-span gantry operations.
Why Choose Four-Link Portal Crane?
✔ Higher precision & stability (Four-link mechanism minimizes load swing).
✔ Adaptable to various attachments (hooks, grabs, container spreaders, electromagnets).
✔ Energy-saving & cost-effective – Reduces operational expenses.
✔ Global compliance – Meets international safety & performance standards.
