TC7021(QTZ250) Self Erecting Tower Crane Accessories

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100 unit/month

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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:Which bird is larger? Mute Swan, Japanese Crane, Dalmatian Pelican, Andean Condor, or the Wandering Albatross?
The Wandering Albatross has the longest wingspna at 12ft (some unconfirmed at 17.5ft) But as for average weight of the bird the ANDEAN CONDOR is the largest at an average of 28.5lbs for males.
Q:What does "automatic tower crane" mean less than 100 tons per metre?
When you are working on this crane, the weight between the weight and the weight to the horizontal distance of the crane Center shall not be greater than 100 tons.For example, if the weight and crane center level distance is 10 meters, the maximum weight is 10 tons; if it is 20 meters, the maximum lifting weight is 5 tons; if it is 40 meters, the maximum lifting weight is 2.5 tons.
Q:How do concrete blocks get to the top of cranes? I know why they're there but how do they get up there?
Construction cranes are erected on site. They are usually assembled on the ground with small cranes, then lift themselves up. The erection sequence is carefully figured, so minimal other equipment is needed. For conventional cranes that are permanent and thus only assembled once, portable cranes are used to erect them. Still, generally pretty much on the ground. Some have counterbalances that are permanently fixed, others have a rail type mechanism that moves in and out.
Q:how much does a crane operator position pay?
I'm sure it depends on where you work, and what kind of crane. 20-ton bridge where I worked paid about $20k/hr, and included overtime, so that would be approaching 50k/yr
Q:How do I make the best paper crane?
How okorder.com/
Q:what is so ironic about the open boat by stephen crane?
What is ironic is nature. This is a correspondent who has covered wars etc. and now his enemy is the sea - nature. What is also ironic is that nature has no regard for class. We know people on this boat come from very distinctly different classes. And yet, the ocean threatens to kill them all, just the same. Kind of like on the Titanic. Rich and poor alike lost their lives. The answer is that nature is the ultimate foe, and when it wants to, it always wins or sure tries hard enough to win. That is what makes this story a beautiful example of American Romanticism. Pax-C
Q:lifting a machine by two crane?
difficult question
Q:How would you be able to tell the difference between a crane fly and a mosquito?
Crane flies tend to be much larger than mosquitoes. And no, crane flies don't bite.
Q:how to do tower crane maintenance?
Tower cranes in construction is being inspected as part of everyday maintenance. Usually, Safety In charge or a mechanical engineer do the inspection on site. Some pointers for inspection are: 1. Machine checking including motor 2. Emergency break 3. Lifting cable checking 4. Power panel 5. others Not only the tower crane is being checked, the operator and rigger also attends daily safety toolbox to update themselves on daily safety hazards on site
Q:How to make paper cranes?
visit okorder.com/ that's the place where I learned folding paper cranes. XD I've always loved them.

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