Topkit Tower Crane TC7021(QTZ250) with High Quality

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Detail of Tower Crane

Feature: Tower Crane                Condition: New                         Application:Building,Construction,Industrial

Rated Loading Capacity: 2.1-12T     Rated Lifting Moment:250KN.M           Max. Lifting Load: 12T

Max. Lifting Height: 200M           Span: 2.5-70M                          Place of Origin: China (Mainland)

Brand Name: CMAX                    Model Number: TC7021(QTZ250)           Certification: ISO,CE

Warranty: 1 Year                    Free standing height (M): 50           Max. Working Range(M): 70

Tip Lifting Weight(T): 2.1          Working Range(M): 40,45,50,55,60,65,70 Climbing speed(M/MIN): 0.5

Counterweight(T): 23.6              Working Temperature(°C): -40-+60      Type: Topkit Tower Crane

Delivery Date:25-30 days            Mast Section Size(L*W*H)MM:2000*2000*3000             


Main Features of Tower Crane


1. TC7021(QTZ250) have competitive price and excellent quality, suitable for all kinds of construction project and can work under all kinds of work condition. With their working radius from 2.5 to 70m, TC7021(QTZ250) tower cranes are famous for their large operating ranges, varied working methods and wide uses.  

 

2. This series of tower cranes has a horizontal jib frame, a jib-trolley radius-changing mechanism and a hydraulic self-raising mechanism.

 

3. It is original in design, reliable in operation and satisfactory in shape.

 

4. Equipped with all necessary safety devices, these cranes show a good speed-control capacity, satisfactory operating stability and high work efficiency.

 

5. Slewing mechanism and trolleying mechanism all take VFD+PLC technical control.

 

6. Outstanding in working efficiency, operating speed and stability. Reduce future maintenance cost.


7. With scientific layout and beautiful appearance.

 

8.They are widely applied for the construction of high-rise hotels, resident buildings, high-rise industrial buildings, large-span factory buildings and tower like buildings like tall chimneys. 

 

9.After sales service will be offered which will get rid of all your worries in the purchase of our product



Specification of Tower Crane

 

Topkit Tower Crane TC7021(QTZ250) with High Quality

Topkit Tower Crane TC7021(QTZ250) with High Quality



Topkit Tower Crane TC7021(QTZ250) with High Quality 

Images of Tower Crane

Topkit Tower Crane TC7021(QTZ250) with High Quality

Topkit Tower Crane TC7021(QTZ250) with High Quality

Topkit Tower Crane TC7021(QTZ250) with High Quality

Topkit Tower Crane TC7021(QTZ250) with High Quality

Topkit Tower Crane TC7021(QTZ250) with High Quality


FAQ about Tower Crane

 

Q: What kinds of tower crane are available now? 

A: Four main categories: normal  tower crane  with cat head, internal climbing  tower crane , top less  tower crane  and luffing  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: 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.



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Q:When the tower crane top height is more than meters
Three, lifting and installation, demolition works(1) lifting projects with unconventional lifting equipment and methods with single lifting weights of 100kN and above.
Q:Tower crane demolition safety technical disclosure, how to write?
Baidu search:Tower crane removing and lowering joint safety technical disclosure.
Q:Tower crane 4 how to change the rate of 2 magnification, how to change, say detailed points
There is a magnification pin on the hook group. When the magnification pin is removed, the pulley will automatically slide to the lifting trolley.
Q:How to explain and classify the types of tower cranes? What do QTZ80 and Q5510 mean?
80 is lifting torque of 800 KN.M, 5510 is 55 meters, big arm of the front crane 1 tons
Q:Tower crane railing height is greater than or equal to meters
GB 6067 requires the height of the railings of the crane to be 1050mm, and a horizontal bar with a spacing of 350mm shall be provided. The bottom should be set at a height of not less than 70mm.
Q:How many motors does the ZOOMLION TC6013A-6 tower crane use?
Model: YZRDW225M-4/8 power: 24/24KW speed: 1420/725r/minDirect search {ZOOMLION QTZ80 (tc6013) _ crane Manual Part 1 (Part Two)}, can also be found.
Q:Protective earthing resistance of tower crane
Q:In what circumstances should a tower crane be demonstrated by an expert?
Circular of the Ministry of housing, urban and rural construction on Issuing the measures for the safety administration of sub hazardous and sub divisional projectsBuilding quality [2009]87 number]Annex twoMore than a certain size of the risk of larger sub sub project scopeI. deep foundation pit engineering......
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:About tower crane torque limiter with 4 limit switches, each play a role, thank you
Lifting weight limiter: limit maximum lifting weight;Torque limiter: limit the maximum lifting torque;Height limiter: limits the maximum and minimum position of the hook lifting and lowering;Amplitude limiter: limit the lifting trolley in the boom on the outside, the inside position;Slewing limiter: limit of up to the number of rotating ring arm;

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