QTZ250 12t Big Capacity Hydraulic Self-erecting Tower Crane
QTZ250 tower crane offers the advantages of aesthetic appearance, simple structure, advanced performance, easy maintenance, great safety and competitive price, it becomes the product of choice for all construction enterprises.The max radius is 70m. Independent loading-lifting height is 50m. Attaching loading-lifting height is 200m. The rated load moment is 2500 KN.m
QTZ250 tower crane Loading diagram
70m Arm:
Loading Diagram
|
Radius (m)
|
3.3-20.4
|
22
|
27
|
30
|
35.8
|
39.5
|
42
|
45
|
47
|
50
|
Weight (t)
|
2 Fall
|
6
|
6
|
6
|
6
|
6
|
6
|
5.59
|
5.15
|
4.89
|
4.54
|
Weight (t)
|
4 Fall
|
12
|
10.98
|
8.56
|
7.51
|
6
|
5.27
|
4.68
|
4.42
|
4.16
|
3.81
|
Radius (m)
|
57
|
60
|
62
|
65
|
67
|
70
|
|
|
|
|
Weight (t)
|
2 Fall
|
3.87
|
3.64
|
3.49
|
3.29
|
3.17
|
3
|
|
|
|
|
Weight (t)
|
4 Fall
|
3.14
|
2.91
|
2.76
|
2.56
|
2.44
|
2.27
|
|
|
|
|
65m Arm:
Loading Diagram
|
Radius (m)
|
3.3-20.9
|
22
|
27
|
30
|
32
|
35
|
36.7
|
40.5
|
42
|
45
|
Weight (t)
|
2 Fall
|
6
|
6
|
6
|
6
|
6
|
6
|
6
|
6
|
5.75
|
5.3
|
Weight (t)
|
4 Fall
|
12
|
11.30
|
8.82
|
7.74
|
7.14
|
6.37
|
6
|
5.27
|
5.02
|
4.57
|
Radius (m)
|
47
|
50
|
52
|
55
|
57
|
60
|
62
|
65
|
|
|
Weight (t)
|
2 Fall
|
5.04
|
4.68
|
4.46
|
4.17
|
3.99
|
3.75
|
3.6
|
3.4
|
|
|
Weight (t)
|
4 Fall
|
4.31
|
3.95
|
3.73
|
3.44
|
3.26
|
3.02
|
2.87
|
2.67
|
|
|
60m Arm:
Loading Diagram
|
Radius (m)
|
3.3-21.1
|
22
|
27
|
30
|
32
|
35
|
37.1
|
40.9
|
42
|
45
|
Weight (t)
|
2 Fall
|
6
|
6
|
6
|
6
|
6
|
6
|
6
|
6
|
5.81
|
5.36
|
Weight (t)
|
4 Fall
|
12
|
11.43
|
8.92
|
7.83
|
7.23
|
6.45
|
6
|
5.27
|
5.08
|
4.63
|
Radius (m)
|
47
|
50
|
52
|
55
|
57
|
60
|
|
|
|
|
Weight (t)
|
2 Fall
|
5.09
|
4.73
|
4.52
|
4.22
|
4.04
|
3.80
|
|
|
|
|
12t tower crane QTZ250 Parameters
Rated lifting moment (kN.m)
|
2500
|
Lifting height (m)
|
Free-standing stationary crane
|
Anchored crane
|
|
50
|
200
|
Working radius (m)
|
Max. working radius
|
70
|
|
Min. working radius
|
3.3
|
Max. lifting capacity (t)
|
12
|
Hoisting mechanism
|
Rope fall
|
α＝2
|
α＝4
|
|
Speed (m/min)
|
/
|
40
|
80
|
/
|
20
|
40
|
|
Lifting weight (t)
|
/
|
6
|
3
|
/
|
12
|
6
|
|
Power(kW)
|
51.5
|
Traction mechanism
|
Speed (m/min)
|
40/20/10
|
|
Power (kW)
|
6/3.9/1.6
|
Slewing mechanism
|
Speed (r/min)
|
0.8/0.8
|
|
Power (kW)
|
7/7
|
Safety devices:
1): hoist height limit 2): over speed limit 3) over load limit 4):lifting moment limit 5): slewing angle limit 6): emergency stop button 7):obstruction light (tip of jib, tower head) 8): wind lock device.
As a professional exporter,our target is to serve worldwide clients with high-quality products, great-reliability, devoted responsibility,professional services and honorable credibility to meet customers’ requirements in all aspects. We will supply you 24 hours a day and 7 days a week after-sale services.
If you want to know more about our products, pls contact us by email or phone. Also welcome consult us any question at your convenience, any inquiry or kind suggestions from you will be very appreciated.
Looking forward your kindly inquiry and hope to help your strong business in near future!
Reference:
More about topkit tower crane, pls refer: http://www.nzmachinery.com/topkit-tower-crane_c1
