70m Boom Tower Crane/7030 Tower Crane/12t/16t Tower Crane

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China main port
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1 pc
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10000 pc/month

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Product Description:

  TC7021 12T construction used tower crane for sale


Product Description


Descriptions of our tower crane:

1, TC7021 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 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,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. Best after sales service will be offered which will get rid of all your worries in the purchase of our products


Advantage of our tower crane:

1, boom relief Angle is big, greatly widened the equipment capacity and scope of work.

2, suitable for the group of tower cross homework.

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.


Independent height (m)


Max height with attachment (m)


Working range can be adjusted(m) 


Min working range(m) 


Max lifting capacity(t)


Tip load @ 48m(t)


Hoist mechanism




Lifting capacity(t)
















Trolleying mechanism





Slewing mechanism




YLEW112M-6-120.N.M X2

Climbing speed(m/min)




Mast section size(L×W×H)m


Working temperature


Total power (KW)


Power supply requirement (KVA)

190KVA for generator

Cable type ( within 30 meters from site power source to lower

 electric box of tower crane )

50mm2(3+2, 5 cores)

Startup voltage & current

380V×95%=361V       219A

Rated working voltage & current

380V                  146A


70m Boom Tower Crane/7030 Tower Crane/12t/16t Tower Crane

70m Boom Tower Crane/7030 Tower Crane/12t/16t Tower Crane

70m Boom Tower Crane/7030 Tower Crane/12t/16t Tower Crane

70m Boom Tower Crane/7030 Tower Crane/12t/16t Tower Crane

70m Boom Tower Crane/7030 Tower Crane/12t/16t Tower Crane


About CNBM:

1, CNBM is the biggest state-owned company which has had been awarded Qualified construction machinery manufactures and most of the big project are using our products.

2, CNBM possess key technical research department and could design & produce special machinery for international clients.

3, We have had passed ISO9001:2008,CE and etc.

4. The successful long-time construction machinery operation in the world testifies that the CMAX products' performance is stable.

5. More than 10 overseas branch office provide immediate commercial convenience and after service.

6. We also has building hoist, suspended platform, formwork, etc. We also signed the strategic partnership with Tadano (China), XCMG, Zoomlion, Sany and other prestigious crane manufacturer, getting the competitive cost price from them, and using our overseas marketing channel to promote their brands. We can provider a series of equipment for your building company customer and supply a basket scheme for the final users.

7. We have built a cover 50,000 square meter logistic park in, Dubai UAE, will be a great guarantee of our business in middle east and nearby area.




 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:How do crane operators take a bathroom break?!?
They relieve themselves the same way that truck drivers do. That's why you see so many plastic milk bottles along side the high ways. Gotta keep rolling!!
Q:What is a really creative way to ask a girl to prom using 1000 origami cranes?
I love the idea!!! it's really cute!!! I have the perfect idea...it just hit me! MY IDEA: Do you have a lake or some type of water flowing in your school yard? Trees too? If yes, then here's the idea: 1. Put some type of plastic wrap at the bottom of each crane so they can float on the water. 2. Hang those oragomis you've shown in trees. 3.Have one of your female friends get her and bring her to the area. 4. Then when she's wondering what's going on....here's where you come in. You said that 1,000 oragomis stand for a wish right? This is what you say with a crane out of the water in your hand: Behind these cranes, is a maker who has a wish. When you hand her the crane, she'll get the point. Hope she says yes! And if she says no, screw her! I wish the guy who asked me was that creative. Any girl should happy to have a guy go through this much just for her. Good Luck Dude!!!!!
Q:How much should the verticality of a tower crane be controlled? Thank you
No, the wind speed is not more than 3m/s, the independent state tower (or attached state highest attachment point above the tower axis) lateral verticality tolerance is 4/1000, the highest tower axis perpendicularity allowed attachment line below the point of difference is 2/1000.
Q:HELP! What to do with a thousand paper cranes?
Thread them with fishing line as you stated in you question. Depending on how big they are, string them 20 to a string and put them on a dowel with 10 strings ,so you will have 200 cranes per dowel times 5 dowels !000 pieces.
Q:method how to assemble tower crane?
Generally tower cranes are self erecting. The first mast and jib sections are assembled at ground level. The mast and jib are then jacked up and another mast section inserted. If the tower crane is not self erecting then mobile cranes have to be used to assemble the crane.
Q:Any opinions on camera cranes?
Camera okorder.com/
Q:Do you know where Ty Crane is now? The one in the film coach carter?
Ty Crane was played by Sidney Faison full-time basketball player and part-time actor. When I last heard of him he was playing for the Magic Johnson Travelling All-Stars
Q:what does 1000 origami cranes mean?
Yeah, but you'll probably wish that you hadn't spent so much time making that many paper cranes.
Q:How do you win something from those crane machines in stores?????
You dont!! Most times as said its luck. The toys and goodies weight alot so its hard for the claws to lock on to them.
Q:is it possible to increase the capacity of a 40/12 t EOT crane to 50 T crane wih small modifications.?
no you have to asses the related struturals.

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