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QTZ250 12t Big Capacity Hydraulic Self-erecting Tower Crane

QTZ250 12t Big Capacity Hydraulic Self-erecting Tower Crane
*Item NO.: QTZ250
*Payment: T/T, L/C
*Product Origin: China
*Color: orange red blue
*Shipping Port: Qingdao, Shanghai, or any China seaport
*Lead Time: 20 days
*MOQ: 1 set
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Description

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

α2

α4

 

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

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