Tower Crane PT7528

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, PT7528

1. This flat top tower crane has fewer requirements than other lifting equipment, giving you less hassle when installing and dismantling. The installation is 10m lower than a topkit tower crane. For topkit cranes, you need to connect the frame, pulling rods, etc. on the ground, when assembling the hoisting jib, which requires a larger lifting capacity. flat top tower cranes don't are easier to install and have hoisting jibs that are 4m, 5m or 10m per section, and can be assembled in mid-air safely and quickly.

2. The climbing tower crane is often used with a group of tower cranes on the same construction site. Because there's no tower head, the cross height can be reduced to 3m when two tower cranes cross operations, compared to topkit tower cranes which need at least 10m. These flat top cranes take less time to assemble and have a lower capacity requirement, fewer ballastings, and a smaller tower body and chassis.

3. The topless crane is used in a variety of construction work sites. Because there's no tower head, you can efficiently move in the space you are in, such as airports, tunnels, and work under high voltage power lines that topkit cranes can't do.

1. Loading Chart of the Flat Top Tower Crane

R	Falls	R(max) m	C(max) Kg	34	40	44	50	54	60	64	70	75
75	4	15.61	20000	7751	6253	5397	4572	4077	3460	3114	2670	2300
75	2	28.9	10000	8251	6753	5897	5072	4577	3960	3614	3170	2800
70	4	15.98	20000	7932	6407	5626	4694	4190	3561	3209	2757
70	2	29.49	10000	8432	6907	6126	5194	4690	4061	3709	3257
60	4	16.4	20000	8116	6562	5767	4818	4304	3664
60	2	30.02	10000	8616	7062	6267	5318	4804	4164
50	4	16.8	20000	8304	6722	5912	4945
50	2	30.5	10000	8804	7222	6412	5445

2. Technical Parameters of the Flat Top Tower Crane

Mechanism working grade			Hoisting mechanism			M5
			Slewing mechanism			M4
			Trolleying mechanism			M4
Radius (m)			Min. 3.5			Max. 75
Height (m)			Freestanding			Attaching
			62			200
Max. load (t)			18
Hoisting mechanism	Hoisting speed	Falls	2			4
		Speed (m/min)	0~70	0~35	0~20	0~35	0~20	0~10
		Load (t)	2.5	5	10	5	10	20
	Min. descending speed (m/min)		≤2.16
	Power ( Kw )		75
Trolleying mechanism	Speed (m/min)		0~60
	Power ( Kw )		7.5
Slewing mechanism	Speed (r/min)		0--0.8
	Power ( Kw )
Jacking mechanism	Speed ( m/min)		0.35
	Power ( Kw )		11
	Work pressure ( Mpa )		28
Balanced weight	Max. working radius (m)		75	70	60		50
	Weight (t)		27.6	24.9	22.2		18.4
Total power ( Kw )			109( including jacking mechanism )
Working temperature ℃			-20~ 40

3. Parameters of Four Mechansims
3.1 Technical Parameter of Hoisting Mechanism

Hoisting mechanism	Max. pulling force		N	45000
	Steel wire rope	Specification		35Wx7-22-1960-1
	Steel wire rope	Max. line velocity	m/min	82
	Drum	Dia .	m	0.78
	Drum	Drum capacity	m	500( the twisting layer ≤5)
	Motor	Model		YZPF280S-4-75KW
		Power	kW	75
		Rotating speed	r/min
	Brake	Model
	Brake	Braking moment	N.m

3.2 Technical parameter of trolleying mechanism

Trolleying mechanism	Item			Unit	Parameter
	Max.pulling force			N	9000
	Steel wire rope	Specification			6X19-11 -1770- I
		Max. line velocity		m/min	60
		Jib length	75m jib	m	Steelwire rope Ⅰ	150	Steelwire rope Ⅱ	95
			70m jib	m		140		90
			60m jib	m		120		80
			50m jib	m		100		70
	Drum rotating speed			r/min
	Motor	Model			YPBE160M-4-11KW-B5
		Power		kW	7.5
		Rotating speed		r/min
	Reducer ratio
	Braking moment			N. m

3.3 Technical parameter of slewing mechanism

Slewing mechanism	Motor	Model	YLEWF112M-145-6 B5
		Power	N.m	145
		Rotating speed	r/min
	Reducer	Model
		Reducer ratio		195
		Output rotating torque	N.m	16000
		Output speed	r/min
	Gear of output end	Module m		12
		No. of teeth z		15
		Modification coefficient x		0.5
	Host total ratio
	Host rotating speed

3.4 Technical parameter of jacking mechanism

Jacking mechanism	Motor	Power	kW	11
		Rotating speed	r/min
	Hydraulic pump	Flow rate	l/min	14.5
		Work pressure	Mpa	28
	Jacking cylinder	Dia . Of cylinder/rod	mm	220/140
		Max. jacking force	t	100
		Jacking speed	m/min	0.35

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