Tower Crane of Chang Li Model Number QTZ40(4209)

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QTZ40(4209)  Description

Feature: Tower Crane

Condition: New

Application: all of constrcution

Max. Lifting Load: 6tons

Max. Lifting Height: 120 m

Span: 42 m

Place of Origin: Henan, China (Mainland)

Brand Name: YU JIE

Model Number: QTZ40(4209)

Certification: CE,Goast

Warranty: 12 months

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

Model: QTZ40(4209)

Main Material: 125*125*10 mm

Mast Section Dimension: 1.64*1.64 *2.5 m

Hoisting Speed (a=2/4): 60/30/7 30/15/3.5 m/min

Min. Stable Falling Speed: 5 m/min

Slewing Speed: 0.36/0.71 r/min

Trolleying Speed: 33/22 m/min

Jacking-up Speed: 0.6 m/min

Total Motor Power: 2.8kw

Counterweigh: 11.48t

QTZ40(4209)   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. Impeller blasting/rust protection paint

4. Advanced painting process

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

6. Famous brand mechanism system, Schneider Electronic control system, jiangte and jiuhe motor

QTZ40(4209)  Specification

 Tower Crane of Chang Li Model Number QTZ40(4209)

QTZ40(4209)  Pictures

 

Tower Crane of Chang Li Model Number QTZ40(4209)

Tower Crane of Chang Li Model Number QTZ40(4209)

Tower Crane of Chang Li Model Number QTZ40(4209)

QTZ40(4209)  FAQ

Q: What can we do for the clients in the market and after-sale service?

A: There is branch office for us in the kingdom and she could provide any commercial assistance for the clients; our exclusive agent would fully represent lifting machinery for business communication and rapid & professional technical support.


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 is main advantage for manufacturing construction machinery?

A: Our machinery main advantages mainly include: 1. National-level Research Academy for various building equipment for more than 30 years’ experience; 2. Complete quality control system; 3. Nearly 20 years experiences in manufacturing industries; 4. Over 50 engineers along with 6 local partner companies  providing worldwide after-sales service;

 

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:What is the insulation resistance of tower crane?
Three. Technical specification for temporary power safety on construction site JGJ 46-20055.4.2 within the construction site crane, derrick and Longmen machinery equipment, metal structure and steel scaffolding and under construction in construction projects, when lightning protection devices in adjacent buildings, structures and other facilities outside the protect zone of lightning arrester, lightning protection device should be installed in accordance with the provisions of.5.4.7 lightning protection electrical equipment machinery, connected to the PE line must repeat grounding at the same time, with a repeat of the mechanical and electrical equipment grounding and lightning protection grounding machines can share the same grounding body, but should be consistent with the repeated grounding resistance of grounding resistance requirements.The electrical equipment of 9.2.1 tower crane shall comply with the requirements of the current national standard "safety regulations for tower cranes" GB5144.9.2.2 tower cranes shall be subjected to repeated earthing and lightning protection grounding as specified in Clause 5.4.7 of this code. The earthing device of the track type tower crane shall comply with the following requirements:L the two ends of the rail are respectively provided with a grounding device;The joint of the 2 track is electrically connected, and the ends of the two tracks are electrically connected in the loop;3 long track every is not more than 30m and a grounding device.
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:What are the lifting moment requirements for tower cranes?
1. Tower crane consists of three parts: metal structure, working mechanism and electrical system. The three main technical parameters are lifting moment, lifting weight and working speed. Lifting moment refers to the boom as the basic arm length maximum amplitude corresponding to the rated lifting weight of product, product or maximum weight with the corresponding inflection point.
Q:Which is the main basis for the disassembly and assembly process planning of tower cranes?
Before the installation and disassembly of 2.0.10 tower cranes, special construction plans shall be worked out to guide operators to perform installation and disassembly operations. The special construction plan shall be prepared according to the actual conditions of the product specifications and the working site of the tower crane, and shall comply with the requirements of the relevant laws, regulations and standards. The special construction plan shall be examined and approved by the technical, safety and equipment departments of the unit, and approved by the technical person in charge, and shall be approved by the supervision unit.2
Q:How to calculate the pouring and maintenance of tower crane concrete in valuation?
Calculated according to actual concrete quantity. According to the design plan of the visa and construction organization.
Q:What are the parts of a tower crane? What are their main functions?
The structural elements include the followingMain arm: carrying weight, and making the trolley have walking track.Balance arm: put up lifting mechanism, electric box, counterweight, and make tower crane to achieve balance torque, reduce the standard section of the bending moment.Tower cap: connect the main arm with the balance arm by the tie bar, so as to reduce the bending moment of the standard section.
Q:Tower crane 10-5-20 is 6T, and 10-5-21 is 8T. What do you mean by tons?
6T/8T refers to the maximum lifting capacity of a tower crane. It doesn't matter what 10-5-20 has to do with it. Maybe your list of numbers is serial number.
Q:What is the scope of the installation and disassembly of self lifting tower cranes and the applicable range of the cost and the off-site transportation cost?
The installation and disassembly of the existing self rated tower crane, the first cost and the off-site transportation cost quota are divided by the lifting moment 1000kNm and 2000kNm of the jack up tower crane.
Q:What is the free height of a tower crane?
The free height of large tower cranes can be up to 100 meters.
Q:When building tall buildings, where is the bottom of the tower crane installed?
A firm foundation is built before the tower crane is used, and then the crane is fixed to the foundation

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