Tower Crane TC7021 Max Lifting Capacity 12Ton

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China main port
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1 unit
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30 unit/month

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Item specifice:

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

Product Description:

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

 

Our tower crane is self-erecting and wall-attached tower crane, in addition to it's advanced parameters, reliable performance, well-looking appearance, and excellent quality.

 

It has characteristica such as long boom, largeworking coverage, hydraulic rising, and tandem mounted tower body.

 

It's design idea shows advantages including simple structure and good applicability, convenient maintainability, and lower price at the same time to emphasize meeting the requirement from construction units at different levels.

 

It's lifting height is obviously increased thanks to its self-erecting and wall attached function.

 

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.

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Q:I am thinking about buying an engine crane or engine support for doing timing belts?
The engine support is mainly for dropping the tranny, used before the car is up on a lift. The crane is for lifting the engine while the four wheels are on the ground. Most timing belts can be done without lifting the engine. Lifting the engine involves a very long list of procedures before actually yanking it up even a few inches. You have to disconnect and support the transmission, drain coolant and fluids and disconnect the hoses and wires, remove the engine mount bolts, maybe pull the radiator out, disconnect the A/C system lines, and remove the tranny and oil cooler lines, the coolng fans, shroud, hood, and so on. Good luck!
Q:A crane lifts a load of 3000 kg to a height of 8.5 meters in 15 seconds?
The work done (W)= Force*Distance. Force is 9.81*3000kg. So W = 9.81*3000*8.5 = 250,155 J Power (P)= Work(W)/Time(t) = 250,155/15 = 16,677 W 60% efficiency means that the lift is only using 60% of its maximum amount of power output. So to find 100% (lets call it x) of the crane's efficiency, consider the following: x * 0.6 = 16,677 x = 16,677 / 0.6 = 27,795 W Total mechanical energy in a system remains constant, so the kinetic energy the moment it hits the ground equals the potential energy when it is still hanging in the air. Potential energy = mgh = 3000x9.81x8.5 = 250,155 J You know this is correct, because it is the same amount of work the crane performed on the object to lift it.
Q:How to learn the training of Crane style Kung Fu balance?
Balance is balance - there's no specific training but good balance will help you with all aspects of your training. A few things that helped me - tying shoelaces by getting into a crane posture rather than kneeling to the laces. The concentration on the shoe helps to balance you. Practice Crane Stance and try to keep a clear mind while in the stance - if you start worrying then you'll fall. Remember to keep the knee high and the foot pointed.
Q:What is the full story of the legend behind the 1000 origami cranes wish?
Well, I read that cranes are symbolic because they are thought as legendary creatures who can live to 1000 years. They apparently have a lot of faith, for they mate only once in that time, and patience. So, that's why it's said that if one can fold 1,000 cranes, 1 crane for 1 year a crane lives, then they will be granted a wish, because they have shown great perseverance and faith in order to stay till the end to fold a thousand cranes. Not sure if this is what you're looking for, but I saw this online while searching up the symbolism of origami cranes. And I know that I am late by 6 years.
Q:How To Make Origami Crane?
You okorder.com and see how to make origami crane step by step
Q:Is the boom of a moveable crane a lever?
No. A lever requires a fulcrum and a boom has none. As ststed the levers are used to operate the hoisting mechanism.
Q:HOW TO BUILD A WORKING CRANE?
you are totally just trying to avoid doing this work by yourself. anybody with two eyes can just look up crane on google and learn how it works. they are super simple just go to the library or something. or better yet go look at a real crane.
Q:What is a tower crane without a collector?
The advantage of the collector is that the tower crane can be turned on one side without any limit, and how many circles can be turned. The tower crane is basically not equipped with collector, because collector generally needs to be located at the center of the tower's turning center, so it is inconvenient for operators to go up and down.
Q:Does anyone know how cranes are put in place?
Big cranes come in peaces ans they use smaller cranes to build it
Q:Paper cranes... What do I do?
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.

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