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Double Trolley Overhead Crane

The difference between a double trolley overhead crane and a hook overhead crane is that there are two trolleys located on the main beam. Twin trolleys can be lifted or operated separately. When it is necessary to lift long items, the synchronous lifting and operation can be achieved through the conversion switch on the control console.

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Product Description

Product description

The difference between a double trolley overhead crane and a hook overhead crane is that there are two trolleys located on the main beam. Twin trolleys can be lifted or operated separately. When it is necessary to lift long items, the synchronous lifting and operation can be achieved through the conversion switch on the control console.

Main specification

Capacity: 5,10,16/3.2,20/5,32/5,50/10T
Span: 10.5-31.5m
Lifting height: 6,9,12,18,24,30m
Lifting speed: 7.9,8.5,10.7,11.3,13.2,15.6m/min
Widely used in: Factories, warehouses, etc.

Technical Parameter

Capacity	T	5+5
Span	m	10.5	13.5	16.5	19.5	22.5	25.5	28.5	31.5
Lifting height	m	16
Lifting speed	m/min	15.6
Trolley travelling speed	m/min	37.2
Crane travelling speed	m/min	92.7			93.7		86.5
Total weight	kg	15406	17290	20020	21724	24213	28579	31970	35389
Max. Wheel load	KN	104	111	120	125	132	144	152	162
Rail recommended	Model	43kg/m
Total motor power	kw	27.8			31.8
Main dimension (mm)	Span(m)	10.5	13.5	16.5	19.5	22.5	25.5	28.5	31.5
Rail top to crane top	H	1750					1840
Rail top to hook center	H4	55					5
Crane base distance	W	5140			5334		5940
Crane width	B	3450					4400
Trolley rail distance	K	1400
Hook left limitation	S1	800
Hook right limitation	S2	1250

Capacity	T	10+10
Span	m	10.5	13.5	16.5	19.5	22.5	25.5	28.5	31.5
Lifting height	m	16
Lifting speed	m/min	13.2
Trolley travelling speed	m/min	43.8
Crane travelling speed	m/min	76				89
Total weight	kg	19947	21375	23541	27705	30304	34660	38352	41497
Max. Wheel load	KN	167	174	183	197	205	218	29	239
Rail recommended	Model	43kg/m
Total motor power	kw	32.3			44
Main dimension (mm)	Span(m)	10.5	13.5	16.5	19.5	22.5	25.5	28.5	31.5
Rail top to crane top	H	1949			2039
Rail top to hook center	H4	533			443
Crane base distance	W	6274					7004
Crane width	B	3450					4400
Trolley rail distance	K	2000
Hook left limitation	S1	1050
Hook right limitation	S2	1300

Capacity	T	16+16
Span	m	10.5	13.5	16.5	19.5	22.5	25.5	28.5	31.5
Lifting height	m	16
Lifting speed	m/min	10.7
Trolley travelling speed	m/min	44.6
Crane travelling speed	m/min	89			75.3		75.3
Total weight	kg	28061	30292	33412	38607	42832	47023	50586	55272
Max. Wheel load	KN	242	255	268	285	299	312	322	335
Rail recommended	Model	QU70
Total motor power	kw	47					56
Main dimension (mm)	Span(m)	10.5	13.5	16.5	19.5	22.5	25.5	28.5	31.5
Rail top to crane top	H	2187	2191		2321
Rail top to hook center	H4	637	635		505
Crane base distance	W	6074			6244		6544
Crane width	B	4150			4200		4500
Trolley rail distance	K	2000
Hook left limitation	S1	1850
Hook right limitation	S2	1500

Structure

Double trolley overhead crane are mainly consists of Girder frame, Crane travelling device, two lifting trolley and electrical parts. Bridge adopts box welded structure, high degree of vertical and horizontal rigidity; crane travelling mechanism adopts separate drive. It has a strong beam and a stable travelling mechanism; the emergency switch can stop any movement once any dangerous happened. It is rely on the bridge frame along the workshop rail direction moving longitudinal, the trolley along the main beam direction moving transverse and the hook lifting movement to work.

It is an excellent choice where high speeds and heavy service are required. As the widely used hoisting machinery currently especially is suitable for working at warehouses and freight yard and other department it is prohibited to use the equipment in the combustible, explosive or corrosives environment.

Overload protection in the event of overload, the hoist unit switches off and only the lowering motion is possible.
Long and cross travel limited by means of preliminary and final limit switches or Wireless anti-collision device.
Anti-falling protection for the Three-in-One electric motor of trolley and crane prevents from accidental falling.
All movements can be switched off by actuating the emergency-off switch at the control station via a main contact.
High quality long time bearing polyurethane materials buffer fixed at the end of trolley travelling and crane travelling to prevent over traveling.
Safety hook latch used for avoiding the lifted material out off from the hook.
Audible and visual alarm device to inform the person stay near by the travelling crane.
Rain Cover for lifting mechanism of outdoor cranes, electric cabinet and driving mechanism.
Protective earth conductor is fitted as standard.
Voltage lower protection system.
Current overload protection system.

Case

Application

Double trolley overhead crane is suitable to lift long materials(wood, paper tube, pipe and bar) in workshops or outdoors to store in factory and mines. The two trolley could work separately and at the same time.