Tower Crane of Chang Li Model Number QTZ315(7035)

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QTZ315(7035)  Description

Feature: Tower Crane

Condition: New

Application: Buliding Construction

Rated Loading Capacity: 1T

Rated Lifting Moment: 168 t*m

Max. Lifting Load: 4t

Max. Lifting Height: 100m

Span: 42m

Place of Origin: Henan, China (Mainland)

Brand Name: YUJIE

Model Number: QTZ315(7035) 

Certification: CE,ISO,IAF

Warranty: 15 months

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

color: as you like

QTZ315(7035)  Features

1.Thirteen years of experience in supplying new self-erecting tower crane with Huiyou Brand.

2. Impeller blasting/rust protection paint

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

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

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

QTZ315(7035)  Specification

 Tower Crane of Chang Li Model Number QTZ315(7035)

QTZ315(7035)  Pictures

 

Tower Crane of Chang Li Model Number QTZ315(7035)

Tower Crane of Chang Li Model Number QTZ315(7035)

Tower Crane of Chang Li Model Number QTZ315(7035)

QTZ315(7035)  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 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 principal to quote the right tower crane to the client?

A: First, we need to know clients’ requirements. Normally the following information should be clarified by the client:  max lifting capacity, height (height under hook), tip load and jib length.


 

 

 


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Q:Tower crane technical condition GB/T 9462-1999 has been cancelled? If so, what is the new standard?
This standard applies to tower cranes defined in GB/T 6974.3.This standard does not apply to mobile cranes equipped with tower cranes. This standard compares with the 5 standards such as GB/T 9462-1999, the main change is as follows:- redefining the type identification principle of tower cranes and eliminating the parameter series in JG/T 5037-1993;
Q:Tower crane body standard section connection bolt screw upward or downward, why?.
A few days ago, a special training course of mechanical equipment, a safety supervision station old experts say the screw from the upward wear, stress is the same, but if the nut screw will fall off, in order to find problems. If you can't get it off the top and bottom nut, you won't find it
Q:Notice of tower crane
Installation condition of 3.2 tower crane3.2.1 tower crane has special equipment manufacturing license, product certification, manufacturing supervision and inspection certificate, the tower crane manufactured abroad should have product certification, and has been in the construction administrative departments for registration.3.2.2 tower cranes shall be of complete structure and conform to the provisions of GB5144 "safety regulations for tower cranes".3.2.3 under the following circumstances, tower cranes are not allowed to use:If the state has been eliminated from the designated period of time, exceeding the prescribed service life assessment, the safety devices and safety facilities can not meet the safety and technical standards of the state or industry; there is no complete safety technical file.3.2.4 tower cranes must be maintained and fully checked before they are installed. Structural parts with visible cracks, severe corrosion, overall or partial deformation, connecting shafts (pins), Kong You, severe wear and tear should be repaired or replaced, in accordance with the provisions of the installation.3.2.5 tower crane foundation should meet the requirements of the use manual, the carrying capacity of the foundation must meet the requirements of tower crane design, installation should be carried out before the hidden project acceptance, qualified before installation. Slope and drainage facilities should be built around the foundation.The track foundation and track laying of 3.2.6 walking tower crane shall be carried out according to the instruction manual and shall comply with the provisions of GB5144.
Q:Minimum QTZ63 tower crane special electric box open for many A
QTZ63 tower crane with air and leakage protection:Minimum three-phase air switch not less than 100A; at the same time leakage protector is not less than 100A three-phase four wire system leakage protection.Maximum three-phase air switch not greater than 150A; at the same time, leakage protector is not more than 150A of three-phase four wire system leakage protection.
Q:Operation points of tower crane (tower crane)?
Safe use requires the use of tower crane, issued by the state competent authorities shall abide by the rules and regulations, but also comply with the relevant provisions in the manual: the crane working environment temperature is -20~40 degrees Celsius, the maximum working pressure is 205N/m2, when should stop using the winds of more than 6 level; the same construction site to install more than two sets of tower crane when should pay attention to the location of each tower, take the elevation of different operations, in order to avoid the tower crane jib, balance arm collision accidents; safety device of tower crane, luffing and slewing height, mass and moment limiter, the last two more important, if the two is not detected qualified, will be regarded as the unqualified, because it plays a role to ensure the safety and prevent the tilting of the tower crane. As a construction site, the tower crane torque limiter failure or to replace the operating personnel mistakenly believe that daily only hanging 800-1000kg materials, not what the risk, the results in a process of lifting materials, because of the construction site is narrow, hanging by the operator sight blocked, hanging objects hanging on building the steel frame, caused by tower crane shaking, was the occurrence of major accidents, thanks to the ground work riggers promptly notify the operator immediately stop to avoid rollover accident of tower crane appeared. It is obvious that all safety devices on the tower crane are essential and must be checked regularly to ensure that all the safety devices are in good condition, sensitive and reliable.
Q:In what circumstances should a tower crane be demonstrated by an expert?
Three, lifting and installation, demolition works(1) use of unconventional lifting equipment, methods, and lifting weights of a single piece in excess of 100kN and aboveHeavy lift works.
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 does "jack up" tower crane 1000KNm mean?
1000KNm means the lifting moment. Equal to the maximum lifting capacity of 63 tons.
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.
Q:What is the rental price of a tower crane? General site rental more, but also buy more? Ask the industry for an answer?
The rental price of tower crane consists of the cost of advance and retreat yard and the monthly rent of tower crane. The cost of the advance and retreat yard includes the loading and unloading costs, transportation costs, installation costs and monitoring expenses of the tower crane. The rent of the tower crane includes the cost of tower cranes, the cost of tower crane maintenance and the wages of the crane drivers. At present, many sites are using lease way to use tower cranes, so that the occupation of the site will be less rent, investment will be relatively small.

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