• Tower Crane 12 Ton Mechanism TC7021 Factory System 1
  • Tower Crane 12 Ton Mechanism TC7021 Factory System 2
  • Tower Crane 12 Ton Mechanism TC7021 Factory System 3
  • Tower Crane 12 Ton Mechanism TC7021 Factory System 4
  • Tower Crane 12 Ton Mechanism TC7021 Factory System 5
  • Tower Crane 12 Ton Mechanism TC7021 Factory System 6
Tower Crane 12 Ton Mechanism TC7021 Factory

Tower Crane 12 Ton Mechanism TC7021 Factory

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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:i know there is a lot of styles in the crane and the praying mantis and ba gua. then what types are there? and what is the most powerful one??
Well... you seem to have two questions in here. First of all, the crane and praying mantis are both stances used in internal (Weija) and external (Neija) Wing-Chun (Kung-fu). Second, Bagua is one of the internal styles. External styles are more powerful for fighting styles.
Q:Under what circumstances does a tower crane require third party testing?
New installation, demolition, close, major transformation, the use of site work committee, the use of factories to the Technical Supervision Bureau
Q:Tower crane technical condition GB/T 9462-1999 has been cancelled? If so, what is the new standard?
This standard applies to tower cranes defined in GB/T 6974.3.This standard does not apply to mobile cranes equipped with tower cranes. This standard compares with the 5 standards such as GB/T 9462-1999, the main change is as follows:- redefining the type identification principle of tower cranes and eliminating the parameter series in JG/T 5037-1993;
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
look man to learn the 5 animals stuff, u can't do it by urself !! u need reflex and you can't have it unless some1 teaches you some techniques !! well actually i wanted to learn Kung fu so i started learning it from the internet !! well there is a time i thought that i new almost everythng and was perfect at it ((that was how i saw myself !!)) but when i got into a Kung fu club i coudn't keep up with them !! so if you want to learn the real techniques you should go to a school or something !!!
Q:What is the book about?Is it a good one?
that was a really good book about a girl who gets leukemia and thinks that if she makes 1001 cranes she'll get a wish and live on but sadly she dies. her classmates finish the paper cranes and they made a statue in her honor.
Q:i need help with my essay,Question: Analyze the poem om terms of its structure, its themes, and its imagery. If youre stuck on themes consider God's absence indifference of nature, or the inronies of war. What is ironic about the poem? How does Crane criticize the romantic hero?
“War is Kind” is the first poem of Stephen Crane’s second collection of poems, War is Kind and Other Lines, published in 1899, less than a year before he died. The poem is sometimes referred to by its first line, “Do not weep, maiden, for war is kind.” The subject of the poem is war and its effects. In this way it echoes the stories and scenes from Crane’s Civil War novel, The Red Badge of Courage. Though Crane had been turned down because of poor health when he volunteered to enlist in the U.S. Navy, he saw his share of war and death as a journalist, covering conflicts in Greece, Puerto Rico, Cuba, and Spain. When Crane published War is Kind and Other Lines he and his wife, Cora, were deeply in debt. Having already established his literary reputation at 23 as the author of The Red Badge of Courage and many newspaper stories on wars around the globe, Crane was able to secure an advance for the collection. Many of the short parable-like, densely imagistic lyrics in the collection deal with God’s absence, the indifference of nature, the ironies of war, and the vagaries of love. “War is Kind” itself is a 26-line poem in five stanzas focusing on the emotional loss of three women whose lover, father, and son, respectively, have died in war. Crane’s detailed snapshots of the fallen men in the first, third, and fifth stanzas evoke the savagery of war and its inherent cruelty. The indented second and fourth stanzas function as the poem’s chorus, and provide more generalized images of war and cutting statements about the military. The poem’s speaker, simultaneously sympathetic with the victims of war and cynical about the purposes of war, implicitly criticizes the image of the romantic hero, showing in graphic scenes the realities of battlefield death and the emotional torment it causes for those left behind.
Q:What is the most likely reason that Crane never tells us the lieutenant's name in episode of war?
The Stephen Crane Society Stephen Crane did not have a middle name. Stephen Crane is buried in ... Would a person be more likely to receive a wound when bravely charging the enemy .... I would be most grateful if you could tell me where I could find this please? .... An Episode of War. How does the facts that the lieutenant is rationing ..
Q:Tower crane body standard section connection bolt screw upward or downward, why?.
Up or down, there is no change in the firm torque of the connecting bolt. Simply choose to go up or down for convenience. Generally no special requirements, it is recommended that the thread upward, so that it is not easy to rust.
Q:I know that the whooping crane population recovered through captive breeding but how many are left currently (right now).
There were 535 total in 2009--the population increased slightly last year but I have not seen a total for the population of 2010. Deaths can occur at any time so the number changes constantly. The Journey North site counts 281 adults in the wild western population and 106 birds in the reintroduced eastern flock. They did not give a number for the birds in captivity so I cannot give you a total. You can follow the reintroduced whooping crane population and their migration each spring and fall on the Journey North (in fall called Journey South site). They also track song birds and hummingbirds and monach butterflies.
Q:I know you need to put current around the magnet (or certain type of metal) in order to attract but is it possible to use as pushing an object away. if there is please tell me how!
To push an object away, you need equipment that is low to the ground when it applies the force. Bulldozers are designed to push objects. Electromagentic cranes are designed to deal with vertical forces, so they are used to lift and drop metal objects. They use electricity to flow through coils wrapped around a metal core to generate a strong magnetic field. Trying to use them to push things could cause a crane to tip over since they are not designed to deal with horizontal forces. Even if you could get the electromagnet wired to repel metal objects, when you bring the electromagnet near the object, it would repel away in an unwieldy manner because of friction and interference with the ground. And trying to direct a large electromagnet at the end of a long chain would be difficult.

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