• Tower Crane 250 TM Spare Parts TC7021 New System 1
  • Tower Crane 250 TM Spare Parts TC7021 New System 2
  • Tower Crane 250 TM Spare Parts TC7021 New System 3
  • Tower Crane 250 TM Spare Parts TC7021 New System 4
  • Tower Crane 250 TM Spare Parts TC7021 New System 5
  • Tower Crane 250 TM Spare Parts TC7021 New System 6
Tower Crane 250 TM Spare Parts TC7021 New

Tower Crane 250 TM Spare Parts TC7021 New

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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: They seem to be the tallest thing around, so what put them up?
They are self-elevating. They jack themselves up. It was the invention of the self-elevating crane and the self service elevator which made popular tall buildings. In older cities, such as Paris, the height of a building was limits by the number of flights of stairs people were willing to climb.
Q: please help me solve.. i really don't get itttt
1 horse power = 746 watt. So the work W done by the crane in 15 s is given by W = 8*746*15 J . So the distance, S through which the crane lifted 100 kg, presumably at constant speed is given by 100*9.81*S = 8*746*15 or S = [(8*746*15)/(100*9.81)] = 91.25 m
Q: How many tons of tower crane QTZ80A lifting?
Lifting torque = mass * radius of gyration (amplitude). That is to say, the bigger the weight is small.
Q: Could bird cranes resemble angels in appearence?
Potentially, many creatures have been the cause of various myths, for example manatees contributed to the mermaid myth, and mastodon fossils probably contributed to the Greek Cyclopes and Heros.
Q: I read on wikipedia that in recent years, it has become less popular, but they do not mention why. I understand the philosophy of the art and it seems like Machida and Anderson Silva use similar styles. These are 2 of the best fighters in MMA. Can anyone shed some light on this?
I can't comment on the people you mentioned. What I can say is that White Crane is a good style. BUT, it was never as popular as arts like Goju-ryu, Shotokan, Shito-ryu, and many others. It is curious that Wikipedia would say something like the style is less popular. But then I have always taken what I see on the internet with a grain of salt. Anyone can post any thing they want on the net. That does not make it true.
Q: Is there a talk show on the radio or TV similar to the Frasier Crane Show where people call in and tell their problems and the doctor gives them advice? One that's either in the Los Angeles area or nationally syndicated?
The okorder /
Q: An Episode Of War by Stephen Crane
Crane saturates his writing with similes and metaphors.
Q: I'm not scared of spiders anymore. If I see one than I can kill it easily, but when I see a daddy long legs crane fly, I freak out! Those things are hugeeee. I could never kill one without being freaked out to death. I heard that they don't even bite, but I'm still scared. There's one in my living room and I ran out. So I planned on staying in my room the whole day and just hope it doesn't show up in the bathroom tomorrow morning when I shower! I'm 14 btw?
This is a selective entomophobia. Basically, you don't fear many insects or spiders, but specific ones trigger your anxiety. Your problem is not the bugs or spiders,(they are harmless) but your fear. This is something 'you' nurture by dwelling on this fear when you see one of these particular critters. I'm glad to hear you no longer fear spiders. you will see the same when you overcome your selective fear. You may even come to realize that the spiders and insects you do fear,are totally harmless, and you may reach a point where you can just ignore these. True, the crane fly is totally harmless and do not bite, sting, or inflict any form of hazard to humans. They can be a nuisance buzzing around your face,as they can be persistent. Adolescent years seem to be when phobias are the most prevalent, but also the easiest time to overcome fears. If you can learn to control your fear, rather than let it control you, you will overcome this. you also need to refrain from dwelling on your fear,as this will only make it worse. Last year, one of my favorite pass times was sitting on the porch watching the sunset. a little orb weaver would come from behind the light and spin her fancy web. Often, I would catch a crane fly that was bothering me and toss it into her web.
Q: HOw to classify tower crane?
From okorder / are divided into upper rotary tower crane and lower tower crane two broad categories.In which the carrying capacity of the former is high than the latter, in many Construction sites the tower cranes we have seen are On a rotary festival add up on the top of a high tower crane access. According to whether the move can move,tower crane are divided into: walking a line, and fixed ones. The fixed tower crane do not switch, installed in the block of concrete baseBasis, or installed in the form of X-shaped concrete foundation. In the housing construction generally use a fixed style.
Q: im really curious about the 1000 paper crane legend. i went on many different websites to learn about it. one said that you are supposed to have 25 strings to hold the paper cranes (40 each) on it and is that true? also a lot websites said that they used them for weddings so do you have to use them for weddings? or can it be any wish you want? i have a few more questions about it but i will ask whoever seems to know the most about it. thank you:)
Most people give paper cranes to their love ones who are ill. Since it is a tedious job, they will all help each other in folding it. Shalbi I may be wrong, but I know that to be able to make a wish, you have to fold the cranes yourself. The wish can be anything, but the most common wish is to recover from sickness and have a prosperous life. A crane signifies longevity and fidelity that is why they like to use them on weddings. ^_^

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