Portal Crane
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Introduction:
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The MQ portal crane is widely used in ports, terminals, and storage yards to efficiently handle loading, unloading, and transshipment operations, significantly improving the turnaround efficiency of ships and vehicles.​
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This type of port portal crane features excellent performance, an attractive appearance, high operating efficiency, and a compact, well-balanced structure. It offers smooth running, comfortable operation, high safety and reliability, and easy maintenance.​
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Designed for use in ports with limited space, the MQ portal crane enables efficient cargo handling on vessels while leaving ample clearance for vehicle traffic. It is particularly well suited for general-purpose ports.
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Parameters:
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Rated lifting capacity: 5 t – 50 t (customizable)
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Lifting height: 10 m – 40 m
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Outreach (working radius): 8 m – 35 m
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Span / Rail gauge: 6 m – 12 m
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Slewing angle: 360° continuous
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Luffing type: Rack luffing / Wire-rope luffing
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Hoisting speed: 30 – 90 m/min
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Luffing speed: 20 – 60 m/min
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Slewing speed: 0.8 – 2.0 r/min
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Traveling speed: 20 – 40 m/min
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Power supply: 380V / 50Hz / 3Ph (customizable)
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Control mode: Cab control / Remote control
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Drive system: AC variable frequency drive (VFD)
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Control system: PLC intelligent control
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Working duty: A6 – A7
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Applicable spreader: Hook, grab, container spreader
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Rail type: QU70 / QU80 / QU100
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Features:
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The sling spreader supports both grab and hook configurations, offering strong adaptability and a wide range of applications.
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An optimized four-bar linkage mechanism ensures accurate and stable luffing movements.
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Full 360° slewing provides an extended working range and high operational flexibility.
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Equipped with PLC control and AC variable-frequency drives for smooth, stable, and reliable operation.
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Remote control operation is available upon request to meet different working requirements.
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Complete safety protection devices, along with integrated communication and lighting systems, ensure safe and efficient operation.
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Single Arm:
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The single-arm portal crane is mainly used in small- and medium-sized ports for loading and unloading bulk materials. Its lightweight design and low wheel pressure help reduce infrastructure investment while delivering significant economic benefits.
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The crane adopts either rack-type luffing or wire-rope luffing (block-and-tackle) mechanisms, enabling load luffing, horizontal movement, slewing, and lifting operations in any position. Coordinated luffing motions ensure smooth, stable, and efficient operation.
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The crane can be equipped with hooks or grabs to meet different material-handling requirements.
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Four-Bar Combination:
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This type of portal crane is a mobile, full-revolving crane with a four-bar linkage design. Its boom system and counterweight are well balanced to ensure stable and efficient operation.
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The crane is available with two types of portal frames: a cylindrical column type and a four-outrigger type. It is designed for handling containers and can be equipped with hooks or grabs to meet different lifting requirements.
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With its long outreach, the crane is suitable for servicing large vessels. It features an attractive appearance, advanced performance, and durable construction. Safe, reliable operation and convenient maintenance make it an ideal solution for comprehensive ports handling multiple types of cargo.
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Adopts a four-link combined boom structure with a cylindrical gantry, ensuring stable and efficient operation.
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Equipped with a large slewing bearing, allowing operation with both hooks and grabs across various working ranges.
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Capable of lifting corresponding loads during horizontal luffing and full 360° slewing.
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Hoisting, luffing, and slewing mechanisms can operate independently or in coordinated combination.
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The entire portal crane can travel in a straight line along horizontally laid rails.
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All operating mechanisms use AC variable-frequency drives, while the crane is controlled by a PLC system featuring full stepless speed regulation and comprehensive fault monitoring.
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The operator’s cab is fitted with an intelligent monitoring and control display that enables real-time fault detection, troubleshooting guidance, dynamic operation status visualization, safety alarms, and lubrication and maintenance management support.
