Tower Crane QTZ125 (TC5520) with Fixed Type

Structural Diagram
Jib 55M

Radius
(m)

Multiple ratio

2.8～18.2

Payload capacity
(t)

8.00

7.16

5.75

4.76

4.03

3.47

2.83

2.35

1.93

4.00

3.54

2.90

2.42

2.00

Hoisting Performance Curve

Item		Unit	Parameter
Metric lifting moment		KN.M	1280
Max. lifting capacity		T	8
Tip load capacity		T	2.0
Working radius		M	2.8~55
Hoisting Height	Independent	M	45
	Attachment	M	174
Hoisting Speed	Fall		2		4
	Hoisting Speed	M/min	0~40	0~80	0~20	0~40
	Max Lifting Capacity	T	4.0	2.0	8.0	4.0
Slewing Speed		R/min	0~0.6
Trolleying Speed		M/min	45/23/6
Climbing Speed		M/min	0.50
Weight	Independent Structure	T	55.0
	Counter-Balance	T	19.0
	Stationary Structure	T
Max. Slewing Radius		M	70
Counter-Jib Slewing Radius		M	14.66
Max. Working Wind Speed		M/s	20
Climbing Wind Speed ≤		M/s	13
Working Environment Temperature		℃	-20~+40

Item				parameter
Hoisting mechanism	Electromotor	Model		YZRDW250L-4/8-37/37
		Power	Kw	37
		Turning rate	R/min	1460/730/150
	Brake	Model		YWZ-315/90
		Braking moment	N.m	630
		Hydraulic braking		Hydraulic braking
	Reducer	Model		JD630
		Speed Ratio		i=17.6
	Steel rope			14NAT6X19W
Slewing mechanism	Electromotor	Model		YZR132M1-6
		Power	Kw	2×4.0 （2x75）
		Turning rate	R/min	975
	Reducer	Model		XX4-80.195C

		Speed Ratio		195
	Brake			Moment Brake
	Slewing ring bearing			011.45.1400.001
Trolleying mechanism	Electromotor	Model		YLEW112M-6
		Power	Kw	60
		Turning rate	R/min	700/1410
	Reducer	Model		SX308
		Speed Ratio		i=33.66
	Steel rope			8NAT6X19W
Hydraulic climbing mechanism	Electromotor	Model		M2QA132M4A
		Power	Kw	7.5
		Turning rate	R/min	1440
	Hydraulic pump	Cylinder model		TQY80
		Route of travel	mm	1600
	Discharge of Hydraulic pump		L/min	14.4
	Working Pressure		MPa	28

Tower Crane ( TC5520 ) Data sheet - 2
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