CMAX Tower Crane TC 7021 Construction Machine

Ref Price:
Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
1 unit
Supply Capability:
500 unit/month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

Item specifice:

Maximum Lifting Weight: 12t Maximum Lifting Height(M): 200m Rated Loading Capacity: 12t
Span: 70 Rated Load Moment: 12t

Product Description:

CMAX Tower Crane TC 7021 Construction Machine

Product Description:

Descriptions of our tower crane:

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:


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

2,It has high working speed, good speed-adjusting performance, steady operation and high efficiency. Three-speed motor and mono-speed ratio decelerator are applied in the lifting struction, which enables heavy load low speed and light load high speed.The range-change structure drives the trolley moving on the horizontal crang jib, with good positioning performance. Planet gear decelerator is applied in the circumgyrating structure, together with moment-limiting hydraulic coupler, which can relize high load capacity, steady starting and reliable operation

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.







FAQ;

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. 


Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:What is tower crane? What are the types and features?
[definitions]Tower crane (tower crane) is called tower crane, also known as tower crane, originated in Western europe. A revolving crane mounted on top of a tall tower. The working space is large, mainly used for the vertical and horizontal transportation of materials and the installation of building components during the building construction. It consists of three parts: metal structure, working mechanism and electrical system. The metal structure includes the tower, the boom and the base. The working mechanism has four parts, lifting, luffing, turning and walking. The electrical system consists of motors, controllers, power distribution cabinets, connecting lines, signals and lighting devices, etc..
Q:What is the allowable range of vertical deviation for tower cranes?
Independent height 4/1000, attachment height 2/1000 under top wall!
Q:How many stops are there in a tower crane? Where are they located in the tower cranes?
The hook has an upper limit on the windlassThe car has front and rear spacing on the trolley hoistSlewing is limited to the slewing gearAnd the torque limit is on the spireWeight limit
Q:Why do tower cranes need to be fabricated?
The fatigue test data show that the fatigue life of the phosphating coating of steel wire rope is about 3-4 times the same structure light steel wire rope (laboratory comparable conditions) with the research on the wear resistance of phosphating, and greatly enhance the possibility of. Manganese phosphating is bonderizing, can solve the wear problems of wire rope used in the process, according to the current market situation of wire rope, manganese phosphating coating of steel wire rope price is higher than that of plain steel wire rope, and prolonging the service life of much higher than the rate of price increase, so the phosphating coating steel wire rope daily use fee is only plain steel wire 30-45% rope, the use of lower cost, higher cost, smooth steel wire rope is eliminated. For reference only
Q:What are the necessary safety devices on a tower crane?
(1) lift height limit position limiterFor cranes with variable boom angles, the lifting motion must be stopped immediately when the top of the lifting device rises to the 8OOmm at the lower end of the boom.For luffing cranes, lift the top of the hook to the lower end of the frame 500mm. The lifting movement must be stopped immediately.(2) lifting moment limiter and maximum lift limiter;When the lifting torque reaches 90% of its rated value, the lifting torque limiter shall be able to issue an acoustic or red light to indicate the alarm. When the lifting torque exceeds its rated value and reaches 108% of the rated value, the lifting direction and outward direction shall be stopped.If the weight and amplitude indicator are set, the numerical value should be correct, clear and eye-catching. The digital error shall not exceed 5% of the indicated value.When the lifting weight exceeds the maximum weight, maximum lifting weight limiter should emit light or sound alarm, when the load exceeds the maximum weight of 6%, should stop to enhance the direction of movement, but to allow institutions towards the down direction.
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:What are the lifting moment requirements for tower cranes?
3, tower crane, such as lifting weight limiter, amplitude limiter, height limiter and load torque limiter limiting device, and travel limit switchestower lights wind instrument, wind clip rail device ladders athletic supporter circlewalkways and railings. The driver's cab is comfortable, easy to operate, with good vision and perfect communication facilities.
Q:What kind of bodies are tower cranes made of?
First, the working mechanism of tower cranesThe working mechanism of tower crane is usually composed of lifting mechanism, luffing mechanism, slewing mechanism, hydraulic jacking mechanism and running mechanism.The hoisting mechanism to realize heavy vertical up and down movement; luffing mechanism and slewing mechanism to achieve weight moving in two horizontal directions; hydraulic lifting mechanism of standard section, increase or decrease, so as to increase or decrease the tower; range of weights can achieve walking mechanism in tower crane and force of arbitrary space motion.
Q:Safety rules for tower cranes
Three. Check after shutdown3.1 after the tower crane has stopped operation, it is necessary to select the suitable position of the barrier and the middle of the track when the turret is turned and the arm to stop along the wind, and then lock all the rail clamps.All 3.2 tower crane rotary mechanism with a normally closed or braking device, in the stop after the operation, the driver must remove the handle, release the brake for crane in the wind blowing in under the direction of rotation.3.3, the hook should be lifted to the minimum distance from the lifting wall, not more than 5m position, hanging on the hook is strictly prohibited. Not to take reliable measures, not by any means, limiting the boom rotate with the wind.
Q:What is the difference between lifting height of tower crane and independent height?
Attachment can be understood as the kind of tower crane tied to a building. Without it, the tower will fall, and its strength, stiffness and stability can not be satisfied.

1. Manufacturer Overview

Location
Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range