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:When is the crane fly season over? I am really really scared of them?
crane flies are totaly harmless to humans, they don't even bite (or sting). they can be a bit of a nuisance when they are buzzing in front of your face, but your pet cat will hurt you long before a crane fly will. they should disappear in late fall.
Q:How much is an origami crane and other models?
Since the crane is such a basic figure, and anybody who's interested in origami can make it for themselves, you probably couldn't sell them. Maybe you might be able to sell some of the more complicated models, but I can't think you'd get much for them. There's no market.
Q:Do they mention Seneca Crane by name in book 1 (The Hunger Games?)?
You know what? I thought they did but I just went through my copy again and I can't find any mention of him by name. I apologize for the incorrect answer I gave earlier.
Q:I have some cranes in our field next door and I was wondering do they eat chickens? I live in Wisconsin.?
Nope, cranes don't eat chickens
Q:Why are the rescue workers in turkey not using cranes to remove the debris of the earthquake? ?
Firstly, it can be damnable hard to move cranes through rubble filled streets, even assuming if such things happen to be readily available. Secondly, as the mess beneath the rubble is bound to be unstable, moving stuff off from the top can cause collapses further down. That danger can be lessened by working more slowly and carefully. I dont belive it is unsafe, if they are meticulous. Your belief is all well and good, but is it based on actual experience?
Q:what is the common material using for crane boom?
Steel, like you said, do you want an exact specification? That will vary by whether it is a very long and slender tall crane or a shorter heavy duty for considerable loads. It may even vary depending on whether the manufacturer has as a goal an extra light weight unit using more expensive stronger steel or is willing to use thicker walls to use more ordinary steel. That is what engineers are for.
Q:Cranes or storks?
Depends on where you live ? Stick to Ornamental Pheasants or Ducks,Storks and Cranes,need to be penned in at night because you will have to pinion them to prevent them flying. Try some Golden Pheasants for a try ,Lady Amherst are becoming a rare commodity and are quite expensive,if you have Foxes and Mink,then no matter what you get you will have problems these two predators.
Q:Prison Break Crane?
They used a helicopter to break out of prison. Breakout with Charles Bronson and Robert Duvall (1975)
Q:How are construction cranes built in the first place?
from the ground up
Q:folding paper cranes?
You can send her a few NICE paper cranes and write her a nice letter, it's the thought that counts.

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