• Tower Crane Inner Climbing Mase Section QTZ250 System 1
  • Tower Crane Inner Climbing Mase Section QTZ250 System 2
  • Tower Crane Inner Climbing Mase Section QTZ250 System 3
  • Tower Crane Inner Climbing Mase Section QTZ250 System 4
  • Tower Crane Inner Climbing Mase Section QTZ250 System 5
  • Tower Crane Inner Climbing Mase Section QTZ250 System 6
Tower Crane Inner Climbing Mase Section QTZ250

Tower Crane Inner Climbing Mase Section QTZ250

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
1 unit
Supply Capability:
30 unit/month

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Specification

Maximum Lifting Weight:
12T
Maximum Lifting Height(M):
200M
Rated Loading Capacity:
2.1T
Span:
70M
Rated Load Moment:
250T.M

Detail of Tower Crane

 

Feature:Tower Crane 

Condition:New         

Model Number:TC7021(QTZ250) 

Place of Origin: China (Mainland)       

Brand Name: CMAX     

Certification: ISO,CE 

Warranty: 1 Year       

Application:Building,Construction,Industrial 

 

Main Features of Tower Crane

 

1) This kind of crane adopts standard section hydraulic lifting and connecting.The max. height can reach 180m with wall tie ins.

 

2) It has high working speed, good speed-adjusting performance, steady operation and high efficiency. Three-speed motor and mono-speed ratio decelerator are applied in the lifting struction, which enables heavy load low speed and light load high speed.


3)The range-change structure drives the trolley moving on the horizontal crang jib, with good positioning performance. Planet gear decelerator is applied in the circumgyrating structure, together with moment-limiting hydraulic coupler, which can relize high load capacity, steady starting and reliable operation.

 

4) The crane has complete set of safety devices, which can guarantee the safe and high efficienct operation. The crane is equipped with lifting height limiter, trolley ranging limiter, moment limiter, weight limiter etc..

 

5)The cranehas scientific layout and handsome appearance. The drivers cab is set independently on one side, with good vision field. It creates a good working environment for the operator.

 

Specification of Tower Crane

 

 

Technical Sheet for TC7021

 

Free standing   height (m)

50

Max height   with attachment (m)

200

Working range   can be adjustedm

40455055606570

Min working   rangem

2.5

Max lifting   capacityt

12

Tip load @ 70mt

2.1

Hoist   mechanism (VFD+PLC)

Falls

2

4

Lifting   capacityt

03

06

06

012

Speedm/min

080

040

040

020

Motor

YZPBF250-4-55KW

Trolleying   mechanism (VFD+PLC)

Speedm/min

0-56

Motor

YPBE132M-4-7.5KW

Slewing   mechanism (VFD+PLC)

Speedr/min

0-0.6

Motor

YLEW112M-6-120N.M×2

Climbing speedm/min

0.5

Counterweightt

23.6

Mast section   sizeL×W×Hm

2×2×3

Working   temperature

-40+60

Total power (KW)

95

Power supply   requirement (KVA)

255KVA for   generator

Cable type (   within 30 meters from site power source to lower

 electric box of tower crane )

50mm23+2, 5 cores

Startup   voltage & current

380V×95%=361V  260A

Rated working   voltage & current

380V  146A

 

Loading diagram

 

70m jib length

R

18

22

24.5

27.7

28.3

30

32

35

37

40

a=2 (t)

6t—31.8m

5.96

5.35

5.00

4.54

a=4 (t)

12t—17.8m

11.29

8.99

7.94

6.86

6.69

6.23

5.76

5.15

4.80

4.34

R

42

45

47

50

52

55

57

60

62

65

67

70

a=2 (t)

4.27

3.91

3.69

3.40

3.23

2.99

2.84

2.64

2.52

2.35

2.25

2.10

a=4 (t)

4.07

3.71

3.49

3.20

3.03

2.79

2.64

2.44

2.32

2.15

2.05

1.90

 

65m jib length

R

20

22

25

27.7

30

31.8

32.4

35

35.9

37

a=2 (t)

6t—35.9m

5.79

a=4 (t)

12t—19.23m

11.49

10.32

8.92

7.92

7.21

6.72

6.57

5.99

5.80

5.59

R

40

42

45

47

50

52

55

57

60

62

65

a=2 (t)

5.27

4.96

4.56

4.31

3.99

3.79

3.52

3.35

3.13

2.99

2.80

a=4 (t)

5.07

4.76

4.36

4.11

3.79

3.59

3.32

3.15

2.93

2.79

2.60

 

60m jib length

R

22

25

27

30.6

31.8

32.4

35

37

40

a=2 (t)

6t—39.85m

5.98

a=4 (t)

12t—21.35m

11.60

10.05

9.21

7.96

7.61

7.45

6.79

6.35

5.78

R

42

45

47

50

52

55

57

60

a=2 (t)

5.64

5.18

4.91

4.55

4.33

4.03

3.85

3.60

a=4 (t)

5.44

4.98

4.71

4.35

4.13

3.83

3.65

3.40

 

55m jib length

R

23

25

27

29

32.8

33.7

34.3

35

37

39

a=2 (t)

6t—42.70m

a=4 (t)

12t—22.87m

11.92

10.86

9.96

9.18

7.96

7.71

7.55

7.37

6.90

6.48

R

41

43

45

47

49

51

53

55

a=2 (t)

6t—42.70m

5.95

5.63

5.34

5.08

4.84

4.61

4.40

a=4 (t)

6.10

5.75

5.43

5.14

4.88

4.64

4.41

4.20

 

50m jib length

R

24

26

28

30

33.1

34.7

35.4

38

a=2 (t)

6t—43m

a=4 (t)

12t—23.04m

11.46

10.48

9.63

8.90

7.94

7.51

7.34

6.74

R

40

42

44

46

48

50

a=2 (t)

6t—43m

5.84

5.53

5.26

5.00

a=4 (t)

6.34

5.97

5.64

5.33

5.06

4.80

 

45m jib length

R

25

27

29

31

33.6

34.9

35.6

37

a=2 (t)

6t—43.75m

a=4 (t)

12t—23.42m

11.16

10.23

9.43

8.74

7.96

7.61

7.44

7.10

R

39

41

43

45

a=2 (t)

6t—43.75m

5.80

a=4 (t)

6.67

6.28

5.92

5.60

 

40m jib length

R

24

26

28

30

32

34.1

35.1

35.8

38

40

a=2 (t)

6t—40m

a=4 (t)

12t—23.8m

11.90

10.88

10.01

9.25

8.59

7.98

7.71

7.53

7.02

6.60

 

 Images of Tower Crane

 

Tower Crane Max. lifting Weight 10T  in China

Tower Crane Main Section TC5613 in China

Tower Crane Main Section TC5613 in China

Tower Crane Max. lifting Weight 10T  in China

 

FAQ about Tower Crane

 

Q: What serice you could provide?

A: Providing timely delivery, standby engineers are ready to slove any of your problem

    Providing all-embraced warranty of products quality, worksite installation guidance

    Providing ample spare parts and training of operation and maintenance

    Engineers have more than 20 years' experience in tower crane, ready to solve any of your  problems.

 

Q: What kind of steel used for  tower crane ?

A: Normally, as for the main force bearing steel structure, Q345B is adopted; as for the assistance force bearing steel structure Q235B is adopted. All of the raw material is outsourced from qualified steel factory in China.

 

Q: What about our  tower crane  warranty?

A: Usually there is one-year quality warranty including main electronic parts (not including consumable parts). There are consumable spare parts together with whole machine and normally they are enough for one year.

 

Q: What is 3 main mechanism of the  tower crane ?

A: there are trolleying mechanism/ slewing mechanism/ hoisting mechanism.

 

Q: Can you equip with light on  tower crane  jib, monitor, remote control and anemometer?

A: Sure. All of these could be provided with extra cost upon the clients' requirements. But according to general practice, remote control is not suggested because most of the operator feedback operation in the cabin will provide a wide working view.


Q: How many stops are there in a tower crane? Where are they located in the tower cranes?
The hook has an upper limit on the windlassThe car has front and rear spacing on the trolley hoistSlewing is limited to the slewing gearAnd the torque limit is on the spireWeight limit
Q: Describe how a bottleneck event reduces genetic diversity in a population, and specifically how this has affected the current population of whooping cranes in the U.S
Well, a bottleneck reduces the number of organisms in a population or species down to a much smaller number than previously existed. In the case of the whooping crane, the species underwent a bottlenck event (although what it is I'm not sure), leaving us with less than 12 individual birds. The more widely accepted number of 6-8 birds has given rise to the several hundred whooping cranes alive today. Since only half a dozen sets of genes were used to create the several hundred, there is not much genetic variability.
Q: I've been making lots of paper cranes lately, thinking I would know exactly what to do with them. In reality, I'm a bit short on ideas... Can you help me with this, because I'd love to find ways to decorate my room with them. I can't really use nails on my walls or ceiling, so I can't do a mobile or randomly string them about.
Okay - so if you can't string them from the ceiling - than what I would do is buy some round vases/globes, from Pier one or some place like that, and fill them with paper cranes, then set the bowls on your shelves/windowsill/desk/table or other flat surface. I've enclosed some examples below. You can also make a mobile by hanging something like a super strength hook with adhesive. 3M makes them (the same folks who created scotch tape). The adhesive does not damage walls and you can stick them to anything. They can bear up to 30 pounds of weight. Put a few on your ceiling or walls and hang your mobiles from them.
Q: What is W_safe, the largest weight of the load that is safe to lift regardless of the angle of the crane's arm?
(Wc)/(2b) for my problem.
Q: Today, my boyfriend surprised me with an origami bird he'd made for me the night before, just for no reason. He told me he'd tried to make a crane but it got to be to complicated. I thought an was an incredibly sweet gesture, and I thanked him thoroughly. I was wondering if it would be nice to give him an origami something back? I found a really easy video on how to make cranes and I made one, but I don't want it to seem like I'm trying to show him up, I just want to show my gratitude. Would it be best to give him the crane, give him a different origami animal, or just let the whole thing go? Sorry if it seems like I'm over thinking this, I just really like him :)
NOT the crane, another origami animal perhaps or give him something different. The crane will so seem as if you're trying to show you're better :P so sweet he gave you a bird though! Be happy! :D
Q: Tower crane and construction hoist service life? What are the norms and standards? How to detect?
more than 1250KN.m (including 1250KN.m), the factory more than 20 years of age (including 20 years);Construction hoist: SC years of construction for more than 8 years (excluding 8 years) SS construction hoist; factory life of more than 5 years (excluding 5 years) of the construction hoist.Excluding other areas
Q: Before the Advent of the Railroad Steam Recovery Crane Car (pictures below), how were Locomotive Steam Engines recovered after a derailment from the 1830's to the 1890's?
Old Man Dirt is right. Block and tackle. Remember too those early engines weren't that heavy. The most common type from 1850 to the 1890s was the 4-4-0. They, and the other types were usually between 25 and 60 tons. I don't necessarily collect old rail photos, but I've seen many hundreds in other people's collections. And early locomotive salvage was usually block and tackle, with another engine brought in to furnish the muscle required. Since this could be a lengthy process if the wreck was extensive, a temporary track, or sometimes called a shoo-fly would be built to move trains past the derailment, or to enable getting another engine and hoisting equipment positioned.
Q: Is the pink paper crane used to represent Lulu?
C.C taught Nunally how to make those paper cranes. It's the symbol of love and hope, I think. It's the symbol of a dream that Lelouch was able to accomplish. And symbol of life. It has many meanings. It just depends on how you interpret it))))
Q: What type of crane done the lift?what type of object was the crane lifting?what was the weight of the load being lifted?
the lift capacity of the Crane is pretty much dictated by the type of crane it is. The largest Gantry / Bridge type is capeable of 1,500 tons.. the largest tower is 100 tons w. a 100meter turning radius. Tracked lattice boom type is 1,600 tons...........(self contained) there's one that will do 4000 tons with modifications including seperate tracks for counterweights
Q: i'm doing it for fun but i was wondering because my aunt had a baby that like 1 and the baby has cancer and i'm gonna try this to help her please don't be mean like the only thing you will get is sore hands and stuff is it true or is it a myth only answer if you did thid and i want to know what happened to you but anyway ill pray to god that everything will be ok with the baby
I believe it is just a legend. If it were true, there will be a high demand of paper and techniques on folding paper cranes. Best of luck with the baby.

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