Characteristics of the MQ type Four-link Portal Crane

Optimized Motion Trajectory
The four-bar linkage mechanism automatically compensates for height variations of the lifting attachment during luffing, achieving quasi-horizontal movement of the load. This minimizes cargo sway, making it ideal for fragile goods or high-precision lifting operations.

High Stability
The synergy between the four-bar linkage and counterweight system effectively distributes load stresses, enhances anti-overturning capability, and ensures reliable performance under heavy loads or complex working conditions.

Large Coverage Range
Featuring a long boom design and large-angle luffing capability, it covers a vast working radius-from dense stacking areas near the base to distant ship holds.

High-Efficiency Drive System
Independently controlled hoisting, luffing, slewing, and travel mechanisms enable multi-action coordination, significantly improving loading/unloading efficiency.

Environmental Adaptability
The portal-type chassis design combined with wind-resistant anchoring devices ensures stable operation in outdoor environments, even under strong winds or tidal variations.

Applications of the MQ type Four-link Portal Crane

Bulk Cargo Terminals: Continuous handling of coal, ore, and other bulk materials using grabs or buckets, enabling efficient ship-to-shore transfer.

Steel and Heavy Industries: Lifting rolling mill equipment, large castings, and high-temperature ladles, meeting demands for precision and safety in heavy material handling.

Power Plants and Energy Sector: Transporting power generator components, boiler systems, and wind turbine blades, ensuring accurate positioning of oversized equipment at height.

Container Hubs: Supporting medium-to-long-distance lifting in container yards, particularly suited for automated terminals requiring cargo stability.

Specialized Engineering: Critical for bridge component assembly and ship block joining, leveraging its high load capacity and trajectory control advantages.