What is a Portal Crane?

Portal Crane is widely used in ports, shipyards, and large logistics centers. This article will give you an in-depth understanding of the Portal Crane’s definition, structural composition, design points, functional features, and the difference with Gantry Crane. If you don’t know how to choose the right Portal Crane or want to know its price range and application areas, then this article will be your ideal guide.

What Is a Portal Crane?

A portal crane is a kind of rail-running crane with a rotating jib structure, which is called a portal slewing crane because its shape is similar to a door frame. Portal cranes can operate efficiently on fixed rails and are widely used in scenes such as the loading and unloading of goods in ports and harbors, ship construction and equipment installation in shipyards, and construction works of large hydropower stations. The portal crane’s machine base is its core load-bearing component, and the internal integrated rotating mechanism enables the crane to realize flexible slewing and accurate load positioning during operation.

Portal Crane Parts​

A portal crane is composed of boom, trolley, hoist, portal frame, runway rails, cab,  counterweights, and other parts. The following are the function characteristics of each part:

• Boom: The horizontal or inclined arm used for lifting and moving loads.

• Trolley: Moves along the boom to position the load horizontally.

• Hoist: The lifting mechanism that raises and lowers the load.

• Portal Frame: The supporting structure with legs that provide stability and mobility.

• Runway Rails: Allow the crane to move along a fixed path.

• Cab: The operator’s control station for safe and precise operation.

• Counterweights: Balance the crane during heavy lifting operations.

Portal Crane Design​

The design of portal cranes needs to consider the working environment, load capacity, operating range, and other factors. Design drawings usually include general layout drawings, mechanical component drawings, and electrical system drawings.

Portal Crane Specification

Portal crane specifications and key parameters include:

Basic Parameters	Rated Lifting Capacity	Hook (t)	10	16	25	40	60	80
		Grab(t)	10	16	25	40	40	40
	Min. Working Range (m)	Above the Rail Surface(m)	20	25	25	28	30	35
		Below the Rail Surface (m)	10	10	15	15	18	20
	Max.Working Range(m)		30	35	35	35	40	45
	Min.Working Range (m)		8.5	8.5	9.5	11	12	12
	Slewing Radius of Tail(m)		6.5	7	7.5	8	9	9.5
	Rail Gauge(m)		10.5/12	10.5/12	10.5/12/14	10.5/12/14/16	12/14/16	12/14/16
	Base Distance(m)		10.5/12	10.5/12	10.5/12/14	10.5/12/14	12/14/16	12/14/16
Speed	Lifting Speed	Full Load(m/min)	40	40	50	50	40	30
		No Load(m/min)	60	60	80	80	70	50
	Luffing Speed(m/min)		40	40	50	50	30	30
	Slewing Speed(r/min)		1/1.2/1.5	1/1.2/1.5	1/1.2/1.5	1/1.2/1.5	0.8/1	0.8/1
	Crane Traveling Speed (m/min)		25/30	25/30	25/30	25/30	25/30	25/30
Number of Wheels			16/20	20/24	24/32	32	32/40	40
Max.WheelLoad			250	250	250	250	300	300
Rail Type			QU80	QU80	QU100	QU100	QU100	QU100

 

Customized Portal Crane

Customized portal cranes are mainly designed according to the specific needs of the user, such as specific working environment, load requirements and so on. Key parameters for customization include:

• Load capacity and lifting height:

• Span and working range:

• Power supply type (electric, diesel, or hybrid):

• Environmental conditions:

• Safety features and automation levels:

Portal Crane Images

What Is The Function Of Portal Crane?

Portal cranes are mainly used for material handling and have a variety of functions to efficiently accomplish the loading, unloading, handling, and stacking of goods.

The main functions of the portal crane include:

• Lifting and moving heavy materials.

• Positioning loads accurately in confined spaces.

• Transporting goods over large areas.

• Supporting operations in ports, shipyards, and construction sites.

What Is The Capacity Of The Portal Crane?

Portal cranes typically have a capacity ranging from 10 to 500 tons. Their robust structure and design allow to handle extremely heavy loads, making them ideal for industries like shipping, construction, and heavy manufacturing.

What Are Port Cranes Used For?

Port Cranes are mainly used for the following industries:

• Ports and Terminals: Handling containers and cargo.

• Shipyards: Assembling and repairing ships.

• Construction: Moving heavy materials like steel and concrete.

• Manufacturing: Transporting large machinery and components.

Conclusion

This article has given you a better understanding of portal cranes. Whether you’re looking for a customized solution to fit your needs or wish to learn more about the different types of portal cranes, we hope to provide you with a valuable reference.

If you have any specific requirements or need further assistance, please feel free to contact our team of experts who will provide you with customized solutions and professional support.