• Tower Crane TC7021 Large Cranes Leg Base System 1
  • Tower Crane TC7021 Large Cranes Leg Base System 2
  • Tower Crane TC7021 Large Cranes Leg Base System 3
  • Tower Crane TC7021 Large Cranes Leg Base System 4
  • Tower Crane TC7021 Large Cranes Leg Base System 5
Tower Crane TC7021 Large Cranes Leg Base

Tower Crane TC7021 Large Cranes Leg Base

Ref Price:
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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Specification

Maximum Lifting Weight:
12T
Maximum Lifting Height(M):
200M
Rated Loading Capacity:
2.1M
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

 

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.

Q: I have skills in my craft, I need finatial help for a n.c.c.c.o. certifacation.
lol, yeah, how about just flip my burgers.
Q: would 2 500 ton crawler cranes be able to lift a 854 ton bridge section 80 feet in the air?
Sorry, okorder /... The farther from the center of rotation of the House, the less a crane can lift. That same crane can only lift 57.5 tons at 22 meters from the center of rotation of the House. Ben
Q: in the Open Boat by Stephen Crane, in part IV why are the characters not identified?
The characters are defined by their roles on the boat. Their previous experiences or personalities don't matter here. It is just the narrow repetitive experience of rowing and how they each contribute to it. Each character is Everyman, being thrown around by the merciless, indifferent hand of Fate. I think that Crane was squarely in the company of Naturalists (they think there's no such thing as individual agency, like Darwinism in fiction). The interesting thing to think about here is that one character has a name - Billie, the oiler. Why is this? He's the strongest, he's the most experienced and he's the one that dies. He's an individual to the reader but Fate doesn't care. I'm sure you can flesh the ideas out now.
Q: In the Pacific NW, what will get rid of Crane Flies in my yard?
Crane Flies,aka Mosquito Hawks are beneficial insects and I would not get rid of them.
Q: please be specific! thank u so much
with the help of a methods the Oreo. there is extra ideas Double Stuf, the frosting is colored for the vacation journeys, Cakesters and Golden. they are ultimate dipped in a tall glass of milk and that i trust they actually have them in straw kinds now. Plus, you may pull them aside and lick the filling, you won't be able to attempt this with an Chips Ahoy.
Q: i read this comment on youtube about people making 1000 paper cranes for japan is this a real thing like can i make paper cranes and mail them to some place if anyone knows the details you would be helping me out because i already started making paper cranes and its such a small but beautiful thing plz help
nicely first of all, i notably advise that purchase some Anti-Pope spray basically in case you have jesus christ knocking at your door. Then i opt to advise which you're making a cake. ideally , a banana, because it quite is my typical. And deliver it to me in the mail. via now, i'll bless you that your place and family individuals besides as acquaintances, are all wanted nicely and which you're no longer killed from one in each of your paper cranes stabbing you in the attention. I additionally advise getting life coverage. God purely is familiar with how sharp paper is and it rly rly hurts. Then devour some poultry, Avacado Sushi via fact each physique is familiar with it quite is techniques nutrition. I end off via commending you and via saying. See you on monday.
Q: explain thoroughly please
Sure. Let's say that a crane needs to hoist a load of 10 tons, and that because it needs to reach over some obstacles, needs to lift at a horizontal distance of 50 feet away. That creates a torque about the base of the crane of 500 ton·ft. By positioning a counterweight on the opposite side of the tower, the magnitude of the moment can be mitigated. For instance, let's say a counterweight of 10 tons is positioned at 25 ft on the other side of the tower. The moment produced by the counterweight is 250 ton·ft, so the net moment at the base is 250 ton·ft. Furthermore, when the 10 ton load is positioned and release, there is still a 250 ton·ft moment at the base of the tower; it has simply switched direction (say from rotating the crane to the right, to rotating it to the left). If you find this helpful, please award Best Answer!
Q: I want this as a tattoo but I want to know what it means. Why type of tree is it? What do the symbols translate into?
I believe you're beautiful I additionally consider self aware however I seem how I seem so simply be you and do not begin dressed in a lot of make up given that that's what I have performed and now i are not able to go away the apartment with out dressed in alot given that I believe I seem even uglier. Stay how you're
Q: Since now everyone will know what's coming when you get in the crane kick position, and the element of surprise is gone, has the crane kick become an extinct move? Do martial arts experts not like the Karate Kid for ruining the crane kick in the way magicians don't like other magicians who reveal their secrets?
Ummmm, assuming this is serious, the Crane Kick was basically made up for the movie. And it wasn't some magical technique, anyway. A guy standing on one leg really only has so many options available. That's why you never actually see anything like that in real competitions.
Q: what is the difference between rigging, wire rope and rope?
Wire rope is twisted line made of stainless, or high tensile steel. Rigging refers to the slings, or chains that attach the load to the lift hook. Rigging also refers to the act of attaching a load to a load handling device, such as a crane.

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