Tower Crane of Jing Kui Model Number QTZ4808

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QTZ4808  Description

Feature: Tower Crane

Condition: New

Rated Loading Capacity: 4T

Rated Lifting Moment: 400

Max. Lifting Load: 4T

Max. Lifting Height: 129

Span: 48

Place of Origin: Shandong, China (Mainland)

Brand Name: JINKUI

Model Number: QTZ40(4808)

Warranty: one year

After-sales Service Provided: Engineers available to service machinery overseas

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

Colour: Orange/ Yellow 

QTZ4808    Features

1.Thirteen years of experience in supplying new self-erecting tower crane with Huiyou 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. Famous brand mechanism system, Schneider Electronic control system, jiangte and jiuhe motor

9. Engineers available to service machinery overseas.   

QTZ4808    Specification

 Tower Crane of Jing Kui Model Number  QTZ4808

QTZ4808    Pictures

 

Tower Crane of Jing Kui Model Number  QTZ4808

Tower Crane of Jing Kui Model Number  QTZ4808

Tower Crane of Jing Kui Model Number  QTZ4808

QTZ4808      FAQ

Q: What is the brand for the tower crane converter?

A: Normally, more than 10t series tower crane is equipped with converter. The selected converter includes SCHNEIDER, SIMENS, YASKAWA…it could be selected as per clients’ request.


Q: What is tower crane?

A: Tower crane is a modern form of balance crane that consist of the same basic parts. Fixed to the ground on a concrete foundation (and sometimes attached to the sides of structures as well), tower cranes often give the best combination of height and lifting capacity and are used in the construction site.



Q: What is the meaning of the tower crane’s code?

A: Take TC5013 for example, the first two letters “TC” means Tower Crane, “50” means jib length is 50 meter, and the last two letter “13” means the tip load is :1.3 ton.


Q: What kind of steel used for tower crane?

A: Normally, as for the main force bearing steel structure, Q345B is adopted; as for the assistance force bearing steel structure Q235B is adopted. All of the raw material is outsourced from qualified steel factory in China.


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.




 

 

 

 


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Q:Construction tower crane operator certificate expires, how to verify?
Two, training contentThe crane safety regulations and operation management; classification and main parameters of the crane; the structure and the working principle and the safety protection device of lifting up; the installation and removal of heavy machinery; the whole debugging and acceptance of heavy machinery; the operational and command signal of lifting and repair; and maintenance of heavy machinery.Three, training hours and full-time training arrangement: 5 days, annual training enrollment.Four, training fees450 yuan / person, including registration fees, training fees, books, information, assessment, assessment fees, accommodation, self-care.Five, training certificationStudents complete the prescribed courses, through the examination, after passing the examination by the Municipal Construction Commission issued a number printed and stamped with the "Chongqing City Construction Management Committee of" legal. "Chongqing construction tower crane operator qualification certificate".
Q:Under what circumstances are winches used and under what circumstances tower cranes are used?
Construction technology is not too complex, and components can be zero, the use of winches (such as brick structure). Large components can not be separated, the use of tower cranes (such as cement cast-in-place shear wall structure must use large-scale steel mold).
Q:[tower crane] and [tower crane] what is the difference between, how to distinguish?
There are many nicknames for tower cranesTower Crane Tower Crane Tower
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:Tower crane 5610 why is it called QTZ63?
Q is reusable, T is tower, Z is jack up, and combined is jack up tower crane. (this is the earliest known China, now the various manufacturers have their own name, some close to the French take, such as F0/23B, the tower jib 50 meters, a maximum weight of 10 tons, 2.3 tons of weight lifting arm tip)80 is the moment, the unit is t * m, (should say is the force multiplied by distance, 800kn.m) for 5613 cranes, the maximum lifting capacity of 8 tons, the boom length is 56 meters, arm tip lifting weight 1.3 tons, maximum weight in the range of 2.5 meters ---13 meters, calculation of 8 * 13=104, so the name is QTZ104, now the provisions should be a QTZ104, but before, people think is 8 tons of weight, so called QTZ80, is now available.
Q:How to distinguish self lifting tower crane with counterweight and lifting tower crane without counterweight
1 self lifting tower cranes with counterweight are common tower cap tower cranes, plate type tower cranes and flat head tower cranes, characterized by a counterweight made of several concrete on the balance arm,
Q:The earthing resistance of tower crane shall not be greater than that of the tower crane
The lightning resistance of tower crane (tower crane) on the construction site shall be no more than 4 ohms.I. tower crane GB/T 5031--20085.5.5.9 lightning protectionIn order to avoid lightning stroke, the main structure of the tower crane, the motor frame and all the electrical equipment metal shell, wire metal protection tube should be reliable grounding, and its grounding resistance should be no more than 4 ohms. When multiple repetitive earthing is adopted, the grounding resistance shall be no more than 10 ohms.Two. Safety regulations for tower cranes GB 5144 - 20068.1.3 tower crane metal structure, track, all electrical equipment metal shell, metal line pipe, safety lighting transformer, low voltage side should be reliable grounding, grounding resistance is not more than 4 ohms. Repeated earthing resistance is not greater than l0. The selection and installation of the earthing device shall comply with the relevant requirements of the electrical safety.The insulation resistance of the 8.1.7 main circuit and control circuit shall not be less than 0.5M ohm.
Q:Protective earthing resistance of tower crane
Q:Calculate the tower crane gantry crane
Is building gantry crane crane, gantry crane is generally used for the port, port crane. Can not be regarded as the tower crane.There are several common types of cranes: overhead cranes, gantry cranes, port cranes, automobile cranes, tower cranes, etc..Gantry crane is a medium and small cantilever crane with simple Longmen.
Q:What is the function of the balance valve in the hydraulic jacking system of tower crane?
The function of the balance valve is to maintain the balance of the oil pressure, the hydraulic oil delivery flow is stable, so that the tower crane jacket and the upper part of the lift, disassembly, standard time, lift and smooth.

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