TC7021(QTZ250) Self Erecting Tower Crane Accessories

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Descriptions of our tower crane TC7021(QTZ250) Self Erecting Tower Crane Accessories:

1, the topless tower crane reduce the dismounting requirements, lower weight, low mounting height, dismount each mast at a time in the air, save the labor cost, safety and fast.

2, it is suitable for crossover work of the cranes, without the tower cap and pull rod, the safety will be increased when there need the crossover work.

3, It is suitable for the special requirement about the height, such as airport nearby, tunnel, workshop ,and the construction site with high-tension cable.

4, It is suitable for the construction site that has the requirement about the crane boom, it can be used as internal climbing crane in the high-rise buildings, irregular roof or small areas.

5, It is very convenient for dismounting in the restricted construction site, dismount each crane boom at a time by manual.

6, The steel structure of crane boom has long using life and high safety standard.

7, The crane boom is good applicability, high-usage,the design of the topless tower crane boom is easy for realizing the serialization and standardization. Reduce the design and making cost.

8, Low design cost, short cycle, can much better satisfy the multiple demands of the customers.


Advantage of our tower crane TC7021(QTZ250) Self Erecting Tower Crane Accessories:


1, 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..

2, 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.

3, boom stability is good, combination amplitude range.

4, suitable for height have special requirements occasions construction.

5, lifting capacity big, effectively solve the high steel structure construction team crane big lifting capacity requirements.


Features of our tower crane TC7021(QTZ250) Self Erecting Tower Crane Accessories:


ItemParameter
Free standing height (m)50
Max height with attachment (m)200
Working range can be adjusted(m) 40/45/50/55/60/65/70
Min working range(m) 2.5
Max lifting capacity(t)12
Tip load @ 70m(t)2.1
Hoist mechanism (VFD+PLC)Falls24
Lifting capacity(t)0-30-60-60-12
Speed(m/min)0-800-400-400-20
MotorYZPBF250-4-55KW
Trolleying mechanism (VFD+PLC)Speed(m/min)0-56
MotorYPBE132M-4-7.5KW
Slewing mechanism (VFD+PLC)Speed(r/min)0-0.6
MotorYLEW112M-6-120N.M×2
Climbing speed(m/min)0.5
Counterweight(t)23.6
Mast section size(L×W×H)mm2000×2000×3000
Working temperature-40-+60°C
Total power(KW)95
Cable type ( within 30 meters from site power source to lower electric box of tower crane )50mm2(3+2, 5 cores)
Startup voltage & current380V×95%=361V       260A
Rated working voltage & current380V/146A


TC7021(QTZ250) Self Erecting Tower Crane AccessoriesTC7021(QTZ250) Self Erecting Tower Crane Accessories

TC7021(QTZ250) Self Erecting Tower Crane Accessories

TC7021(QTZ250) Self Erecting Tower Crane Accessories

TC7021(QTZ250) Self Erecting Tower Crane Accessories


TC7021(QTZ250) Self Erecting Tower Crane Accessories

FAQ TC7021(QTZ250) Self Erecting Tower Crane Accessories;

1. why chose us?

China National Building Materials (Group) Corporation (CNBM), established in 1984,now is one of the largest state-owned group corporation in China, dealing with building materials & industrial equipment. Up to year 2010, CNBM Group's total asset is 20 billion USD and total staff is more than 100,000.CNBM International Corporation, specializes in designing & manufacturing of various

kinds of construction machinery, including tower crane, building hoist, etc. All the equipment produced by CNBM are compliant with the National level quality standard, and wins great reputation for their endurable performance in worldwide markets.

 

2.How about the shipment?

You can put 2 sets of of wheel loaders in one 40HQ container. The spare parts are packed with boxes.

The delivery time is 20 days.

 

3. What about your service?

We have our factory, we can meet customers needs as soon as possible.

We have first rate professional technology and provide good after-sales service.

 

4.After Sales Service

We offer the Preventative Maintenance and After Sales Service. For we strongly feels about the importance of supporting our customers and the product solutions we provide. Consequently we offer comprehensive maintenance options to prevent equipment issues before they become problems. Also we offer one year guarantee period.   

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Q:the crane and praying mantis/ ba gua?
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:What's the japanese words for crane, flower, butterfly, cherry blossom, and sword?
flower-ohana butterfly-chocho blossom-sakura get back with the rest
Q:how do they get cranes on top of building sites?
One way is another crane, although I think you are talking about the ones for really tall buildings. In those cases, they use a crane (self-hoisting tower crane) that is able to raise or hoist itself up as construction continues. For example, it will be working on the 10th floor, and then it will climb the recently placed girders to the 11th floor, and so and so forth. Sometimes the crane is disassembled at the top... other times, it is kept there to aid in window washing.
Q:How do you calculate ground bearing pressure for cranes?
You use statics. You get the specs for the crane and what it is lifting and determine from the site the pick angles and where the outriggers are going to be placed. Then you do the 3-D calcs to determine the reactions necessay and determine the soil's allowable bearing pressure, then design temporary footing based on that.
Q:where can i find the xxx video of bob crane?
Bob Crane Tapes
Q:What do you think of paper cranes?
Thats sweet, but I suggest picking the best and the most prettiest one out and tell her.. Reminds me of you... Cheesy but the beauty has to be obivous... It cant be like ugly or just a normal crane. 1,000cranes would .. Well no offense... Make him look like a weirdo who would spend his time making cranes.. But make one HELLA GOOD ONE.
Q:books about the physics of a tower crane?
Hi, Well, this is an interesting topic about physics and requires to have a basic knowledge, correct? So here we have some books: - Chopra, K. A. Dynamics of Structures: theory and applications to earthquake engineering. - Bostelman, R., et al. “Toward Next-generation Construction Machine,” Proceeding of American Nuclear Society 9th International Topical Meeting on Robotics and Remote Systems. - Gore, Bryson. Trucks, Tractors, And Cranes. - Grote Antonsson, editors. Handbook of Mechanical Engineering. - Seidel, Michael. Tensile Surface Structures. B-) FL ------------- You cannot teach a man anything; you can only help him discover it in himself.” (Galileo Galilei)
Q:Can anyone help me interpret the poem Fear by Hart Crane? or North Labrador?
Analysing Poetry Close reading may seem like a foreign and unfamiliar approach to analyzing a piece of text. However, it can often yield insights that will help you to create a unique paper developed from your own interpretation of the text. To analyze the work effectively, it is useful to concentrate on specific components of literature used to build and reveal the themes in the work. This process will help you explain how a passage relates to central themes in the text allowing you to reach an intelligent and creative thesis for a literary analysis. First, choose a passage (or a series of passages) that intrigues you.
Q:how long before a forklift/ crane license expires?
should be good ror 3 years from the date he got it i just got mine new one last month for a sit down fork lift and crane/ trolly and its good till march 2010
Q:What do I have to do after I make the 1000 paper cranes?
recycle

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