• Tower Crane TC7021 12Ton Lifting Capacity System 1
  • Tower Crane TC7021 12Ton Lifting Capacity System 2
  • Tower Crane TC7021 12Ton Lifting Capacity System 3
  • Tower Crane TC7021 12Ton Lifting Capacity System 4
  • Tower Crane TC7021 12Ton Lifting Capacity System 5
  • Tower Crane TC7021 12Ton Lifting Capacity System 6
Tower Crane TC7021 12Ton Lifting Capacity

Tower Crane TC7021 12Ton Lifting Capacity

Ref Price:
$10,000.00 - 50,000.00 / unit get latest price
Loading Port:
China main port
Payment Terms:
TT or LC
Min Order Qty:
1 unit
Supply Capability:
30 unit/month

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Item specifice

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

 

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FAQ about Tower Crane

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:What are the climbing claws on the tower crane?
Climbing is lifting work cylinder claw pole on the standard main limb rod bearing points of the.
Q:OMG! a phoba of crane flys, and there are 5 on my celling right now!!! What do I do, will the move and fly around eventually? I can't kill them, they are out of my reach, and if they start moving, im runing the %^$ outta my house.Will they die by tommorow? or will they just hang there?
You !!!!!!!!!!!!!!!! that made me jump, i hate spiders... But they do say they are good for keeping the flys down...Personally i use a spray or a fly swatter, the swatter is great because it gives them an electric shock and kills them straight away.
Q:I was looking at the glidecam hd1000 for my canon vixia hv40, but now I think I'm more interested in a crane (jib).I was thinking of the advance digital 6 ft. crane. I would replace some of the plastic parts for metal.I'll be using it to film sketches and short films. (my budget is 350 dollars, but id like it to be under that)the crane is 200 dollarsthe glidecam is 370 dollars (on amazon)Thanks,Mike
It okorder / I have purchased Studio Jib last year and since then it is performing pretty good. It is quite light in weight that it can be carried very easily without any problem.
Q:I already have 864 cranes and I wanna know what kind of wishes can I make? And are there consequences?Can I wish something like my mom won the lottery and we become rich? (Just an example!)And can you wish for death? (Just a question!)
You can make whatever wishes you want. Just remember that the wishes you make reflects what kind of person you are. So maybe you should make wishes you can be proud of. Also remember, if wishes were horses beggars would ride If you for example would wish that you would have $10, your wish is most likely to be fulfilled if you manage to sell each origami crane for 1 cent... Generally wishes come true if you really work for them, Not by sitting, doing nothing and wishing.
Q:These cranes always stay higher than the construction process but I have never seen how they are extended to stay above all of it. They come in two formats, free standing and those attached to the building. The possibilities that I thought of was that maybe they use another crane to lift the housing and the horisontal arm to put in more modules into the vertical part; or that they extend it by some way by putting modules in at the top or bottom and that the crane has some self-lifting mechanism to accommodate the insertion of more modules. However, I have never seen this being done, nor does the construction of these cranes point to its ability to do so. The only other possibility that I could think of was that the crane is set up at the outset to be higher than the completed height of the building, hence there is no need to extend it but this does not explain how they do it for very high buildings where the crane is attached to the building and seems to grow higher with the building.
The cranes are self erecting. The cranes tower is raised in sections. The lowest section is jacked up to the correct height and then a new section inserted and so on.
Q:how do i win stuff in a crane machine?
you win by putting the crane where you want it to be
Q:Is boom truck a crane truck? Are they the same or two different kind of truck?
they are basically the same except a boom truck usually has a trailer and is used to haul things like limber or roof trusses
Q:heres a picture of one
There are a few types. Some more modern cranes jack themselves up and then back down after wards. There is a large mis-conception about tower cranes. Many people think they can handle larger loads than portable jib cranes. This is not the case. The advantage of a tower crane is its cost and ability to see. The ones that are not capable of jacking themselves up are erected and taken down by large jib cranes with many times the lifting capacity and cost.
Q:can somebody give me good info on this. its a martial art im very interested in leaning and i would like some background info on it first thx
No. You can make an argument that some body type may find it easier, but to say a particular style of martial art is only for one body type (tall skinny) is ridiculous. My White Crane teacher was barely 5'5 and thin, and he had no problem whipping my classmates who are in the 6' height range. Don't worry about your size. Forget the video and find a teacher. Crane is good, but so is any style that is taught by a good instructor. Besides, you are 15 and still have at least 5 more years of growth. If you start now, by the time you reach your max height, you will have been training at least 5 years and I'll bet anything your height is not going to be a concern for you.
Q:dimentions of crane rail, crane beam.
What kind of crane? There are thousands of types.

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