TOWER CRANE QTZ80 working is steady and reliable

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TOWER CRANE QTZ80 working is steady and reliable

1. Its performance parameter and technical index are in leading position domestically, reach international leading level of end of 80s and beginning of 90s with max. working radius of 55m, which is 5m longer than domestic longest one (See Chart 1-3 for other performances), it is equipped with Q5017 arm and Q5512 Arm.
2. It is of international fashionable pattern, which is very beautiful, and has received popularity from domestic and international clients.
3. It has many working modes and wide applying range. It has working modes like being fixed with groundwork and being attached to wall, etc., which can be applied to different working objects. Hoisting height of separate type is 46m, attaching type is made by adding standard sections and attaching device under foundation of separate type, its hoisting height can reach 150m, and max. hoisting weight of special type can reach 200m.
4. Its working speed is high, timing performance is good, and working is steady and reliable.
5. Electric control system adopts electric elements produced through introducing advanced technology by professional producer, its lifespan is 3-4 times longer than home made elements with less malfunctions, simple maintaining and reliable working.
6. It is equipped with 8 kinds of safety devices, which are mechanical or integrative products. It can be applied to bad working environment to assure reliability of tower crane.
7. Design absorbs domestic and international reliable technology at the same time of according to situation of China and assuring reliability principle to improve technical level of entire crane.
Reliable advanced technologies are:
(1) Electric elements produced through introducing TE Company of France by professional producers.
(2) Weight restrictors, moment restrictors, height restrictors, radius restrictors, swing restrictors and brakes of swing and radius mechanism produced by introducing advanced technology.
(3) Trolley breaking prevention device (slip prevention), shaft breaking prevention device and steel wire device.
(4) Wire Arranging System of Hoisting Mechanism
(5) Tightening System of Traction Wire
(6) Rigid double pulling pole hoisting arm. Rigidity of hoisting arm is good, self weight is light, section is small, wind resistance is small, figure is beautiful, which make it satisfy different constructions.
(7) Diving room is set separately with good visual field and large inside space, and it can be equipped with air conditioner to create better working environment.
(8) It adopts swing restrictor, eliminates central electricity collector to eliminate damp and creepage and make convenience for entrance and exit of driver.
(9) Driver use advanced coupling to operate movement of each mechanism, which is convenience for operation and simple for maintaining.
8. Design completely accords with or be better than state standard.
Because crane has above characters, it is fit for high civil constructions, bridge and water conservancy projects, large workshops and large chimney, etc.
II．QTZ80C Tower Crane (Separate Type) Figure and Size

III．QTZ80C Tower Crane (Attaching Type) Figure and Size
IV．Form of Hoisting Load Identity
(1) Load Identity of Q5017 Arm

Radius（9m）		2.5-14.4		15	16	18	20	22	24	26
Hoisting Weight（t）	A=2	4		4	4	4	4	4	4	4
Hoisting Weight（t）	A=4	8		7.64	7.09	6.18	5.46	4.87	4.39	4

Radius（9m）		28	30	32	34	35	36	38	40	42
Hoisting Weight（t）	A=2	3.64	3.34	3.08	2.85	2.75	2.65	2.47	2.31	2.16
Hoisting Weight（t）	A=4	3.64	3.34	3.08	2.85	2.75	2.65	2.47	2.31	2.16

Radius（9m）		44	46	48	50
Hoisting Weight（t）	A=2	2.03	1.91	1.80	1.70
Hoisting Weight（t）	A=4	2.03	1.91	1.80	1.70

(2) Load Identity of Q5512 Arm

Radius（9m）		2.5-112.68		14	16	18	20	21	22.5	26
Hoisting Weight（t）	A=2	4		4	4	4	4	4	4	3.74
Hoisting Weight（t）	A=4	8		7.13	6.09	5.3	4.67	4.4	4	3.74

Radius（9m）		26	28	30	32	34	35	36	38	40
Hoisting Weight（t）	A=2	3.39	3.09	2.83	2.60	2.40	2.31	2.23	2.07	1.93
Hoisting Weight（t）	A=4	3.39	3.09	2.83	2.60	2.40	2.31	2.23	2.07	1.93

Radius（9m）		42	44	46	48	50	52	55
Hoisting Weight（t）	A=2	1.80	1.68	1.58	1.48	1.39	1.31	1.20
Hoisting Weight（t）	A=4	1.80	1.68	1.58	1.48	1.39	1.31	1.20

VI．Technical Performance

Rating Hoisting Moment			KN.m	800
Max. Hoisting Weight			t	8
Working Radius			m	2.5 - 50	2.5 - 55
Hoisting Height（s/a）				4 6 / 1 5 0
Hoisting Speed			m/min	2 0 / 4 0 / 8 0
Swing Speed			r/min	0.66
Radius Speed			m	6 0 / 3 0 / 1 0
Hoisting Speed				0.4
Min. Declining Speed				﹤5
Size	Under Frame		m	2.6 * 2.6
	Height	S		46	46
		A		150	150

	From Head of Arm to Center of Swing			51.36	56.36
	From End of Arm to Center of Swing			13.29	13.29
Weight	Weight of Structure	S	t	41.2	41.6
		A		82.6	83
				35	35.4
	Balance Weight			12.6	13.8
Other	Total Power		KW	42.4(without hoisting mechanism)
	Max. Wind Power		N/m2	250
	Non-work Wind Power			800
	Working Temperature		℃	-20～+40

VII．Form of Main Fitting Technical Parameter

Mechanism Load Ratio		Hoisting Mechanism			M5
		Swing Mechanism			M4
		Traction Mechanism			M4
Max. Hoisting Height (m)		150
Hoisting Mechanism	Motor	Model			YZRDW250M1-8/4
		Power (KW)			30/30
		Speed (r/min)			715		1355
	Decelerator Box	Total C Distance (mm)			600
		Total Drive Ratio i			16
	Rolling Cylinder	Wire Volume (m)			360
		Winding Layer (Layer)			4
		Diameter (mm) Ø500
	Brake	Model			YWZ3-315/90-16
	Steel Wire	Specification			6×29Fi+IWR-14-1700
		Max. Strength (N)			27190
	Ratio	A=2			A=4
	Hoisting Weight	2	4	4	4	8		8
	Hoisting Speed (m/min)	80	40	7	40	20		3.5
Swing Mechanism	Motor	Model			YZR132M2-6-3.7
		Power KW			3.7×2
		Speed r/min			908
	Decelerator	Model			XX4-100-180C-001
		Drive Ratio			180
	Output Gear Parameter	Modulus m			12
		Tooth z			16
		Changing Modulus x			+0.5
Swing Bearing	Single Quarter Contact Ball Swing Bearing	Model			011.45.1400 (JB2300-84)
		C Diameter mm			Ø1400
		Modulus m			12
		Tooth z			131
Hoisting Mechanism	Motor	Model			Y132M-4 B5
		Power KW			5.5
		Speed r/min			1440
	Hydraulic Pump Station	Model			QT802-10
		Pressure H (Mpa)			25
		Pressure B (Mpa)			6.5
	Hoisting Oil Tank	Model			QT80G
		Max. Hoisting Strength t			50
		Hoisting Speed m/min			0.4

Radius Mechanism	Motor	Model	Power KW	Speed r/min	Start Current A
		YZTDE180 M-4/8/24	5.0/3.7/1.1	1370/700/210	44/28/65
	Wire Speed	Slow Speed m/min		10
		Low Speed m/min		30
		High Speed m/min		60
	Electromagnetic Brake	Joint Voltage		200V.D.C.LS
		Working Voltage		24V.D.C
	Steel Wire	Model		6×19-7.7-1700-1-L-R
		Max. Traction Strength (N)		9000

VIII．Form of Brief Introduction of Main Metal Structure

Item Name		Figure	Main Parts		Remark
Item Name		Figure	Specification	Material	Remark
Crane Body	Groundwork Section		Square Tube 135×135×12	Q235	Size: 1700×1700×2530
	Reinforced Section		Square Tube 135×135×12	Q235	Size: 1700×1700×2500 =5 Sections
	Standard Section		Square Tube 135×135×10	Q235	Size: 1700×1700×2500
Hoisting Arm			Upper Chord: 2<80×80×8 2<75×75×6 Lower Chord: 2<100×100×8 2<80×80×8 2<75×75×6	Q235	Q5512 Hoisting Arm =9 Sections Q5017 Hoisting Arm =8 Sections They are connected with pin shafts.
Swing Body			Square Tube 135×135×10	Q235	Frame Structure
Cover Frame			Main Chord: 2<100×100×10	Q235	Size : 2300×2300×6060 for hoisting
Lower Abutment					Box Structure
Upper Abutment					Board Structure
Tower Top			Main Chord: 2<100×100×10	Q235	Quarter Cone Structure
Balance Arm			Main Chord: 30a with seal board	Q235	Welded with V-iron and Angle Iron =2 Sections
Under Frame			I-Steel: I25b	Q235	Composed of Entire Frame and Press Board
Driving Room					Board Structure

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