Tower Cranes Model Self-ascending Building QTZ40( 4808)

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QTZ40( 4808) Description

Feature: Tower Crane                  Condition: New 

Application: urban construction    Rated Loading Capacity:4T 

Rated Lifting Moment:400KN.M    Max. Lifting Load: 4T 

Max. Lifting Height:120M              Span: 3-48M 

Model Number:QTZ40( 4808)

Certification: ISO9001:2000; CE;Ukraine & Belarus Certificate 

Colour: Orange/ Yellow 

After-sales Service Provided: Overseas third-party support available 

QTZ40( 4808) Features

1.Ten years of experience in supplying new self-erecting tower crane with Taiwo Brand.

2. Export to more than 20 countries with CE/ISO/GOST Certificates.

3. Stationary/Travelling, external/ internal climbing tower crane 

4. Impeller blasting/rust protection paint

5. Advanced painting process

6. Potain masts designed with dismountable panels, making teansport easier and cheaper. 

7. New designed mast, can be used to Internal and external climbing tower crane

8. Engineers available to service machinery overseas.   

QTZ40( 4808) Specification

Tower Cranes Model Self-ascending Building QTZ40( 4808)

QTZ40( 4808) Pictures

Tower Cranes Model Self-ascending Building QTZ40( 4808)

Tower Cranes Model Self-ascending Building QTZ40( 4808)

Tower Cranes Model Self-ascending Building QTZ40( 4808)

QTZ40( 4808) FAQ

Q: What is counter weight? How kinds?

A: Counter weight is for balance the suspension mechanism. There are 2 kinds of counter weight, one is made by iron, the other is by concrete. 


Q: What is the function of the monitor?

A: Monitor, namely inspection system (like black box), which could store 10000 tower crane operation reports, and it is recommended to be installed in big cranes more than 16t.


Q: Can you equip with light on tower crane jib, monitor, remote control and anemometer?

A: Sure. All of these could be provided with extra cost upon the clients’ requirements. But according to general practice, remote control is not suggested because most of the operator feedback operation in the cabin will provide a wide working view.





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Q:There is no CAD map attached to embedded parts of tower crane?
4810 as long as 16. The middle spacing is different. It's almost impossible to install
Q:More than meters of tower cranes must be equipped with red barrier lights at the top
however, tower cranes over 30 meters above the tower shall be equipped with red light on the top of the tower and jib.
Q:What is the difference between a jack up tower crane and a fixed tower crane?
Tower cranes, because there is no running mechanism, so tower crane can not do any movement. Fixed tower crane can be divided into the tower height invariant and Jack up. That is, the jack up tower crane is a kind of fixed tower crane.
Q:What are the luffing, slewing, and walking points of a tower crane?
The luffing of a tower crane is the forearm of a crane;Slewing means the steering mechanism of a crane;Walking means the walking trolley on the luffing range of a crane
Q:How do tower cranes rise?
The weight and concrete foundation shall be made in advance and marked, and the ground ground endurance shall be no less than 20T per square meter. The chassis and standard sections are then assembled on this basis. The standard section of tower crane is the main part of the main part of tower crane. It is also the main role of heightening the height of tower crane". In the construction process, tower crane accompanied by the rise of buildings, naturally need to heighten. When the tower is hoisted, the upper frame is raised upwards with the jack up, so that there is a space between the tower body and the frame, and the standard section of the tower body is installed in the space. In this way, the purpose of the tower crane is realized.
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:How many motors does the ZOOMLION TC6013A-6 tower crane use?
Model: YZRDW225M-4/8 power: 24/24KW speed: 1420/725r/minDirect search {ZOOMLION QTZ80 (tc6013) _ crane Manual Part 1 (Part Two)}, can also be found.
Q:What are the safety devices for the horizontal arm self lifting tower cranes?
(1) the lift height limit position limiter must be able to stop lifting motion immediately when the lifting device is raised 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 weight limiter; when 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's the difference between QTZ63 and qtz630, isn't it the same kind of tower crane?
It's the same kind of tower crane, but it's only a unit of rated lifting torque. The former unit is 63 tons. M, the latter is 630 kn m. According to the latest national standard "tower crane", GB/T5031-2008 and QTZ63 are written correctly.
Q:Ask about the lift and transportation of the jack up tower crane
According to the requirements of the 2.0.3 specification: tower crane tower crane installation and disassembly operation should be equipped with the following: 1, hold a qualified safety assessment certificate of the project and responsible for the safety of people and machinery management personnel; 2, with construction qualification certificates for special operations of the construction hoisting machinery installation and disassembly, lifting work, special operation signal heavy drivers, riggers and other operations personnel. And an electrician.

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