CE Approved Flattop Building Crane (QTZ40(PT4810))

• After-sales Service: 24 Hours
• Warranty: 1 Year, One Year
• Certification: CE, ISO9001
• Condition: New
• Maximum Lifting Height: >250m, 150-200m
• Maximum Lifting Weight: >10t, 8t
• Model NO.: QTZ40(PT4810)
• Installation: Jack-Up
• Moving Type: Fixed
• Type: Top-Slewing Crane
• After-Sales Service: 24 Hours
• Max. Lifting Capacity(T): 4t
• Max. Operating Range(M): 48m
• Max. Lifting Capacity at Jib Tip (T): 0.9t
• Basic Height (M): 29m
• Max. Height (M): 120m
• Transport Package: Seaworthy Packing in 40hq Container
• Specification: CE
• Trademark: Mingwei
• Origin: China
• HS Code: 8426200
• Production Capacity: 200 Units /Month

Product Description

CE Approved Flattop Building Crane (QTZ40(PT4810))
PT4810 FLATTOP TOWER CRANE
PT4810 flat top tower crane is based on microcomputer design platform of tower crane, applying group technology, combined design technology and FE analysis technology, combining with advanced international technology and requirements of domestic construction market, develop and design more advanced tower crane in China.
The tower crane is horizontal arm support, trolleying, top slewing and hydraulic jacking tower crane. Its jib length is 48m, max. Load moment is 540 KN. M, free standing height is 30m, max. Attached height is 120m (2 falls).
Self-weight of the crane(without balanced weight and anchors) is 21.41t, total capacity of whole crane is 25.1 Kw. Advanced parameters, stable performance, good looking, excellent quality, simple structure, equipped with advanced safety devices, simple maintenance and competitive price make MLP4810 tower crane be popular in small and medium construction enterprises.

Performance parameters
Item performance parameters
1 max. Lifting capacity(t) 4t
2 max. Operating range(m) 48m
3 max. Lifting capacity at jib tip (t) 0.9T
4 basic height (m) 29m
5 max. Height (m) 120m
6 dimension of section (m) 1.5× 1.5× 2.2
7 material of mast section 160× 160× 12/Q345B

Item	Performance	Parameters
1	Max. Load	4t
2	Max. jib length	48m;
3	Tip load	1.0t
4	Free standing height	30m
5	Max. height	120m
6	Size of mast section	1.5×1.5×2.2m
7	Material of mast section	All mast sections are manganese Q345B, ∠160×12 angle steel; Jib is Q345B.

 2. Main parameters
 

Item			Unit	Magnification
				α=2	α=4
Rated load moment			KN.m	540
Max. load			t	2	4
Work radius			m	3 - 48
Load at max. radius			t	1.0
Radius at max. load			m	27.3	14.79
Hoisting height	Independent		m	30
	Adhered			120	60
Outer size of whole crane	Chassis		m	6.0×6.0
	Height of whole crane	Independent		38.284
		Adhered		128.284
	Tip of jib to the slewing center			48.74
	Tip of balanced jib to slewing center			11.425
Self-weight of whole crane	Independent		t	21.41
	Adhered		t	46.36
Balanced weight			t	8.0
Other	Total power of motors		Kw	25.1
	Work grade at max. height		Grade	≤6
	Allowable work temperature		ºC	-20~40

3. Performance of load3.1 Load charts(A) Load chart of 4 falls 
 

Radius (m)	3-14.79	15	16	17	18	19	20
Load (t)	4	3.94	3.67	3.44	3.23	3.04	2.87
Radius (m)	21	22	23	24	25	26	27
Load (t)	2.72	2.58	2.45	2.34	2.23	2.13	2.04
Radius (m)	28	29	30	31	32	33	34
Load (t)	1.95	1.87	1.80	1.73	1.67	1.61	1.55
Radius (m)	35	36	37	38	39	40	41
Load (t)	1.50	1.45	1.40	1.35	1.31	1.27	1.23
Radius (m)	42	43	44	45	46	47	48
Load (t)	1.19	1.15	1.12	1.09	1.06	1.03	1.00

  Load chart of 2 falls
 

Radius (m)	3-27.3	28	29	30	31	32	33
Load (t)	2	1.94	1.86	1.79	1.72	1.66	1.60
Radius (m)	34	35	36	37	38	39	40
Load (t)	1.54	1.49	1.44	1.39	1.35	1.30	1.26
Radius (m)	41	42	43	44	45	46	47
Load (t)	1.23	1.19	1.15	1.12	1.09	1.06	1.03
Radius (m)	48
Load (t)	1.00

3.2 technical parameters of mechanisms
 

Mechanical load factor		Hoisting mechanism		JC 40%
		Slewing mechanism		JC 40%
		Trolleying mechanism		JC 40%
Hoisting mechanism	Motor	Type		YZTD200L 2 -4/8/24
		Speed	r/min	1440	720	220
		Power	kW	15	15	4
	Reducer	Center distance	mm	460
		Transmission ratio	i	12.25
	Drum	Dia.	mm	Φ330
		Layers of rope		4
		Capacity	m	280
		Speed	r/min	114	57	11.4
	Braker	Type		YWZ-250/45-10
		Braking force	N	450
	Wire steel rope	Tractive force	N	10000
		Spec.		6×19-12.5-1770-I
	Hoisting speed	m/min		65.1/31.9	32.6/15.9	13.0/6.4
	Rated load	t		0.8/1.6	2/4	2/4
	Min. Stable descending speed	m/min		≤7
	Total weight	t		1.2
Slewing mechanism	Motor	Type		YZR132M-6
		Speed	r/min	908
		Power	kW	3.7
	Reducer	Type		H-100
		Transmission ratio		i	195
		Outputing torque		N@m	10000
	Slewing bearing	Type		QW.40.1120
	Small pinion gear	No. of modulus		m	10
		No. of teeth		z	13
		Modification coefficient		x	+0.5
	Hydraulic coupler	Type		YOX280A
	Slewing speed			r/min	0.6
	QTY of installation			set	1
Trolleying mechanism	Motor	Type		YD100L 2 -4/6
		Speed	r/min	1440	960
		Power	kW	2.4	1.5
	Reducer	Model	WCJ120
		Transmission ratio	39
	Wire steel rope	Spec.		6×19-7.7-1550-I
		Line speed	m/min	38.6/25.2
	Trolleying speed		m/min	38.6/25.2
Hydraulic jacking mechanism	Hydraulic pump	Work pressure	MPa	20
		Power	kW	4
		Type of oil pump	GB306
	Jacking cylinder	Rated pressure	MPa	20
		Dia. of cylinder	mm	Φ125
		Dia. of piston rod	mm	Φ90
		Stroke	mm	1300
		Erection distance	mm	1700
		Jacking speed	m/min	0.4
		Max. Jacking force	t	24.6