Portal Crane

Portal cranes/level luffing crane  are divided into two types of single-boom and four-link according to the structure of the boom.

The portal cranes are a new line of slewing cranes with articulated jib, which execute load lifting operations in hook and grab modes and carry out handling operations in sea and river ports and assembly operations.

 

The single-boom portal crane has the features of simple structure, light weight and large amplitude. The four-link portal 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 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 Port Crane 1025, Port Crane 1030, Port Crane 1625, Port Crane 1630, Port Crane 1635, Port Crane 2525, Port Crane 2530, Port Crane 2535, Port Crane 4025, Port Crane 4030, Port Crane 4035 single boom portal cranes and four-link portal cranes.

 

As the benchmark of China's crane industry, Weihua has designed and produced China's largest 80-ton four-link gantry crane and designed and produced a single-boom gantry crane with a maximum of 300 tons.

 

 

• 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/level luffing crane
Basic Parameters	Rated Lifting Capacity	Hook（t）	10	16	25	40	60	80
		Grab（t）	10	16	25	40	40	40
	Lifting Height	Above the Rail Surface（m）	20	25	25	28	30	35
		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
		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