Tower Crane of Chang Li Model Number QTZ31.5

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QTZ31.5  Description

Feature: Tower Crane

Condition: New

Application: All kinds of costruction

Rated Loading Capacity: 4T

Rated Lifting Moment:500/630/800/1000/1200KN.m

Max. Lifting Load: 4T

Max. Lifting Height: 150m

Span: 42M

Place of Origin: Henan, China (Mainland)

Brand Name: Yu Jie

Model Number: QTZ31.5

Certification: ISO,CE,BV,SGS

Warranty: 12 months

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

Tip Load: 0.8

Trolley travel speed: 38/25m/min

Slewing speed: 0.6r/min

Jacking up: 0.4m/min

Powed: 380V/50HZ

Lifting character: 2/4 Fall

QTZ31.5   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.   

QTZ31.5  Specification

 Tower Crane of Chang Li Model Number  QTZ31.5

QTZ31.5  Pictures

 

Tower Crane of Chang Li Model Number  QTZ31.5


Tower Crane of Chang Li Model Number  QTZ31.5

Tower Crane of Chang Li Model Number  QTZ31.5

QTZ31.5  FAQ

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 3 main mechanism of the tower crane?

A: there are trolleying mechanism/ slewing mechanism/ hoisting mechanism.


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.


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.



 

 


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Q:How did the tower crane rise on the construction site? Fifteen
With a bar of steel, each layer has about 10 or more bars of steel. When the building rises, add a few more bars to the top floor, plus a few layers. It uses the stability principle of the triangle to keep the tower crane from tilting, and it also needs to pull some cables around to keep it balanced, just like a country pole.
Q:Method for operating tower crane
2.21, drivers must pass the escalator up and down, up and down the escalator, hand tools are prohibited items.2.22 do not drop any objects from tower cranes or defecate.2.23 winter in tower crane operating room heating, should be taken to prevent electric shock and fire measures.2.24 any tower crane with an elevator must comply with the instructions in the elevator manual. No overloading or violation of the operating procedures.2.25 multi machine operation, should avoid two or more than two tower cranes overlap in the radius of rotation. Special circumstances, need to overlap operations, must be safe distance between the vertical arm to ensure the safe distance and the lifting of materials, and have reliable safety measures approved by the competent technical leadership before construction.2.26 jib cranes in heavy lifting off the ground after lifting, rotating and walking three actions can be done at the same time, but the amplitude only alone, strictly with variable load. A crane that allows variable amplitude loading shall not vary at full load or near full load.2.27 lifting hoist is not installed in the rotating part of the crane, lifting operations may not continue in one direction continuous rotation.2.28 a crane with a mechanical torque limiter must adjust the tonnage indicator of the overload limit device according to the radius of gyration and the rated load at that radius.2.29 bend rail subgrade must comply with the provisions of the crane should turn on the outer rail surface of the sand, rail, rail and wings painted with grease. The counterweight box shall be turned to the direction of the outward turn. It is strictly prohibited to do lifting or turning on heavy roads.
Q:How often should the crane be inspected regularly?
Tower cranes, elevators, mobile cranes 1 times a year, including rubber tyred container gantry crane every 2 years 1; small light lifting equipment, bridge crane, gantry crane, gantry crane, cable crane, crane mast, railway crane, jib crane, mechanical parking equipment every 2 years 1, the crane annual molten metal and hot metal 1.Rules for periodical inspection of lifting machineryArticle 1 These rules are formulated in accordance with the regulations on the supervision of special equipment safety and the regulations on the supervision of crane safety.Article second of the rules from the regular inspection of heavy machinery, is often used in hoisting machinery maintenance unit (hereinafter referred to as the foundation of the self inspection and maintenance), by the State Administration of Quality Supervision Inspection and Quarantine (hereinafter referred to as the State Quality Inspection Administration) special equipment inspection agency approved (hereinafter referred to as the inspection agency) according to the rules, to incorporate the use of registration in the inspection of crane.Article third these rules apply to lifting machinery within the scope stipulated in the regulations on safety supervision of special equipment. All the hoisting machines included in the catalogue of special equipment shall be inspected regularly."No" included in the catalogue of special equipment installation supervision and inspection and the implementation form of hoisting machinery factory, direct delivery unit, for use in pre registration by the local inspection agencies in accordance with the rules of the test items and their contents, requirements and methods for inspection of the equipment before using test (i.e., referred to as the first examination), qualified rear can be used for registration. For the first inspection of hoisting machinery, see Appendix A.
Q:What is the inspection certificate for tower cranes?
Inspection certificate of tower crane must have two certificates:1, the manufacturer issued its own "product quality certificate"2. The product quality supervision and inspection certificate issued by the Technical Supervision Bureau
Q:What does "slewing up" and "under rotating" in the slewing form of a tower crane mean?
As for the reasons, the main consideration is the actual needs.
Q:The special equipment specified by the state is a periodical inspection cycle, wherein the crane is carried out every many years
Special equipment including boilers and pressure vessels (including gas cylinders), pressure piping, elevator, crane, field (factory) in special vehicles, large recreation facilities, passenger ropeway, regular inspection period of their different. The periodic inspection period of hoisting machinery is usually two years.
Q:Can the attached arm of the tower crane be welded?
The attached arm of a tower crane can not be welded and can only be bolted.Adhesion calculation of tower craneTower crane attachment (anchor) device structure, internal force and installation requirements in the use of narrative instructions so in the tower crane installation and use, the use of units can be executed according to the requirements, do not need to calculate, only when the tower crane installation position to the building from the over manual provisions, to increase attached rod (Zhi Chenggan) two, spacing or attached rod connected with a building when changing to attached calculation.
Q:What's the difference between QTZ63 and qtz630, isn't it the same kind of tower crane?
Should be the same series, but lifting weights are not the same
Q:When the tower crane foundation is found, what should be discontinued?
The settlement, inclination and cracking of tower crane foundation can affect the stability of tower crane and should be stopped
Q:What type of tower crane does not include tower crane in variable amplitude mode?
Tower crane, tower crane.Tower crane according to its different types, there are the following classification methods.(1) divided by structure type of fixed tower crane by connecting a fixed tower in the foundation or structure, tower crane lifting operation.Mobile tower crane: a tower crane with running device and can walk.

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