• Tower Crane TC7021 Climbing Cage New Design System 1
  • Tower Crane TC7021 Climbing Cage New Design System 2
  • Tower Crane TC7021 Climbing Cage New Design System 3
  • Tower Crane TC7021 Climbing Cage New Design System 4
  • Tower Crane TC7021 Climbing Cage New Design System 5
  • Tower Crane TC7021 Climbing Cage New Design System 6
Tower Crane TC7021 Climbing Cage New Design

Tower Crane TC7021 Climbing Cage New Design

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:Is a mobile crane allowed to operate in an inclined plane?
It has been my experience that cranes like to be level, and not operate unless they are level. But, I am no expert.
Q:No inspector would intentionally overlook a dangerous existing situation re: crane usage in a major city---so what went wrong--never before has this happened and now two majjor incidents?
Buildings Department records said officials halted work at the Upper East Side site after the crane failed load tests on two straight days, April 22-23. However, the crane passed another test the next day. No violations had been issued in connection with the crane.They said the turntable popped off-even though there are 16 bolts that hold it down. It could be an issue with the bolts. My heart goes out to the families of the crane operator, Donald Leo, 30, and another worker, 27-year-old Ramadan Kurtaj killed in this awful accident. A third construction worker was seriously injured, and one pedestrian was treated for minor injuries. Love honey
Q:What does tower crane 400tm mean?
Lifting torque of 400 tons. Meters, also known as 4000KN/m, refers to the QTZ400 tower crane, the general maximum lifting capacity of 25 tons, big arm 70 meters, the most front-end hanging 5.2 tons, independent height of about 70 meters. Normally we say QTZ40 tower crane is lifting torque of 40 tons. Meters, 400KN/m.
Q:do they eat them or what??i hear about hunting them and i think cool but what do you do with them i mean do they tast good??
Eating Sandhill Crane
Q:how to build a crane using:woodelasticsgluescrews/boltsbottlessyringesnailsplastictin canand rubber tubingplease be detailed,thanks! :)
Carefully. okorder has kit numbers and downloadable instructions for many Lego cranes. You might be able to find some of them on OKorder. You may not need to actually build the Lego crane. Instead, look at the model, determine the major pieces (wheels, turntable, arm, etc.). Then, look at your bundle of pieces and make something with the same function.
Q:Where are gears used on a crane?
It's more a matter of where gears MIGHT be used. 1. Gear reduction to lifting cable drum. 2. Gears to rotate the crane, or driving cable drum to extend jib. 3. If a mobile crane, gears to transmit drive to wheels/ tracks etc.
Q:I have got a ton of Mosquito Hawks in my house. Should I just let them be or will the problem get worse? Plus I read they dont bite humans but will the bite rabbits? I have 2 house rabbits that I am concerned about.
Mosquito Hawk
Q:How do you test the tower crane? Myopia can span tower crane? Brother here, please all heroes.
See the ability of individuals, the first ticket 650 yuan graduation card ID card (copy) medical certificate according to 3 inch 3 days learning theory exam two days of practice examination through 15 days notice thank you hope to adopt licensing
Q:How many meters does the tower crane installation height require expert proof?
Circular of the Ministry of housing, urban and rural construction on Issuing the measures for the safety administration of sub hazardous and sub divisional projectsAnnex No. [2009]87 [Annex two]"More than a certain size of the risk of larger sub sub project scope."Three, lifting and installation, demolition works(1) lifting projects with unconventional lifting equipment and methods with single lifting weights of 100kN and above.(two) lifting equipment installation with lifting weight 300kN and above; demolition work of climbing crane within height 200m and above.The installation and disassembly of the tower crane in accordance with the provisions of the above provisions shall be verified by the expert panel.
Q:What are the characteristics of a tower crane?
Classification and characteristics of tower cranesAccording to whether or not there is a walking mechanism, it can be divided into movable tower crane and fixed crane.Mobile tower cranes can be divided into four types: track type, tyre type, automobile type and caterpillar type according to the difference of walking device.The track type tower crane tower body is fixed on the walking underframe, and can be operated on the specially designed track. The utility model has good stability, can walk with load, and has high work efficiency, so the utility model is widely used in construction and installation engineering.The wheel type, the automobile type and the crawler type tower crane have no track device, and they are easy to move, but can not walk with load and have poor stability.The fixed tower crane can be divided into two types: the attached self lifting type and the internal climbing type according to the different installed positions:The attached tower crane can rise as the building rises. It can be applied to the high-rise building. The structure of the crane can only bear the horizontal load from the crane, but it is easy to use, but it occupies more steel structure;The internal climbing crane in the interior of the building (elevator, staircase), up through a set of system and improve the lifting bracket, is complicated, but occupy steel less, do not need to be installed, all the weight and load by building bear.

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