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Portal Jetty Crane

Portal Jetty cranes are widely used in ports, docks, storage yards and shipyards to complete the loading, unloading and transshipping operations of ships and vehicles. Weihua’s portal Jetty crane owns a number of features and benefits such as simple structure, light weight, large amplitude, safety and stability, stable operation, high operating efficiency, convenient use and maintenance, horizontal small fall of spreader luffing.

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Portal Jetty cranes are divided into two types of single-boom and four-link according to the structure of the boom.

The single-boom portal Jetty crane has the features of simple structure, light weight and large amplitude. The four-link portal Jetty crane adopts an excellent combined boom system to realize the horizontal movement of goods during the luffing process, with the features of horizontal small fall of spreader luffing, stable operation and high work level. Both types of portal Jetty cranes can meet the loading and unloading requirements of general cargo, bulk materials and containers. They have the characteristics of wide application range, high operating efficiency, convenient use and maintenance, safety and stability.

The electric drive adopts the unique technology of full digital AC frequency conversion and PLC speed regulation control, with flexible control and high precision. The quality of the whole crane is guaranteed by purchased parts from well-known domestic and foreign brands.

At present, the specifications of main products are MQ1025, MQ1030, MQ1625, MQ1630, MQ1635, MQ2525, MQ2530, MQ2535, MQ4025, MQ4030, MQ4035 single boom portal cranes and four-link portal cranes.

Provide various structural forms of grab rope stabilization devices, with good rope stabilizing effect, which can significantly restrain the swing of the spreader.

Two-cranes cooperative operation technology has high control precision and good cooperative effect.

The hinge point of the boom moves up to realize the Z-winding of the wire rope, which prolongs the service life of the wire rope and is convenient for maintenance.

The automatic slewing following technology for container spreader improves operation efficiency and safety.

Vector frequency conversion and electric energy feedback technology save energy and environmental protection.

Automatic fault detection and real-time data display technology are safe and reliable.

Provide multiple operation modes---manual ,semi-automatic remote operation with advanced technology and stable performance.

Its core technologies: operation, slewing positioning, intelligent following of spreader trajectory and intelligent safety protection.

A variety of safety measures, including strong wind alarm, safety dynamic scanning.

Main Technical Parameters of Portal Crane
Basic Parameters	Rated Lifting Capacity	Hook（t）	10	16	25	40	60	80
	Rated Lifting Capacity	Grab（t）	10	16	25	40	40	40
	Lifting Height	Above the Rail Surface（m）	20	25	25	28	30	35
	Lifting Height	Below the Rail Surface（m）	10	10	15	15	18	20
	Max. Working Rang（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
	Lifting Speed	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. Wheel Load(kN）			250	250	250	250	300	300
Rail Type			QU80	QU80	QU100	QU100	QU100	QU100
Power Supply			3 phase AC 380V 50HZ