What are the main advantages of a Four Link Portal Crane compared to a Single Jib Crane for container handling?

The four-bar linkage system provides horizontal level luffing, keeping the container completely level as the boom luffs. This allows much higher luffing speeds, smoother motion, reduced container sway, lower motor power consumption, and higher hourly container throughput (TEU/hour).

Can this crane be used for bulk cargo or general cargo as well?

Yes! The crane can be supplied with a quick-change spreader/hook connection. You can easily detach the container spreader and install a cargo hook block or a motor/hydraulic grab bucket for bulk materials.

How does the crane protect against strong winds and typhoon weather?

The crane includes an anemometer wind-speed alarm, automatic hydraulic rail clamps, wheel brakes, and storm anchoring devices that lock the crane structure securely to the ground during typhoon conditions.

Can the crane dimensions be customized to fit our existing berth rails?

Yes, all structural parameters including track gauge, portal clearance height, outreach radius, lifting height, and voltage requirements are fully custom-engineered to meet your port's layout and operational needs.

Four Link Portal Crane for Container Handling

Authentication mark:

Capacity:25t – 65t (customizable)

Lifting Height:18m–35m (customizable)

Voltage/Hertz:(customizable)

Brand Name: YUNTIAN

Place of Origin: Henan, China

Product manual

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Introduction

Technical Data (General Version)

Application

Features

PRODUCT INTRODUCTION

The Four Link Portal Crane for Container Handling is a heavy-duty, high-performance port crane engineered for high-frequency loading, unloading, and stacking of standard ISO 20ft, 40ft, and 45ft containers at seaports, feeder docks, and inland container terminals. Utilizing a four-bar linkage mechanism with horizontal lever luffing, the container stays on a horizontal trajectory during luffing, delivering faster speed, lower energy consumption, and high efficiency.

TECHNICAL DATA

Parameter	Specification Range
Rated Capacity	25t – 65t (customizable)
Working Radius	9m – 48m (customizable)
Lifting Height	Above: 18m–35m / Below: 10m–22m (customizable)
Hoisting Speed	20 – 70 m/min
Luffing Speed	20 – 60 m/min
Slewing Speed	1.0 – 2.5 rpm
Traveling Speed	20 – 35 m/min
Rail Gauge (Span) x Base Distance	10m – 18m (customizable)
Applicable Container Sizes	ISO 20ft, 40ft, 45ft (customizable)

APPLICATION

Seaport Feeder Container Terminals

Inland River Container Hubs

Multi-Purpose Port Berths

Intermodal Rail & Logistics Yards

Automated & Semi-Automated Smart Terminals

FEATURES

Horizontal Luffing Container Movement: Keeps the container horizontal during luffing for smooth, high-speed displacement.

Automated Container Latching: Rapid locking/unlocking with ISO containers using hydraulic telescopic spreaders with flippers.

Anti-Sway & Micro-Slewing Control: Advanced sway damping logic for precise container positioning into ship cell guides or stack spots.

Typhoon & Heavy-Wind Protection: Heavy-duty rail clamping, wedge braking, and anchor pin mechanisms guarantee safety under extreme storm conditions.

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Our products are mainly exported to South America, Southeast Asia,Africa, Russia, Turkey, Middle East countries and so on.

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