tower crane TC7030A / tower crane QTZ300A

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Shanghai
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1 unit
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100 unit/month

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QTZ300A(TC7030A) tower crane is a fixed, self-elevating, and attached tower crane. In addition to its optimized parameters, reliable performance, well-looking appearance, and excellent quality, its advantages include long boom, larger working coverage, hydraulic rising, and tandem mounted tower body. the beautity of the design is made up by its easy operating, good applicability, high maintenability, and low price-value ratio, as well as meeting the requirements from construction units at different levels. Its maximum lifting height is greatly increased by its self-elevating and attached design. It is capable to meet the construction requirement of all kinds of industrial, commercial, office, and civil buildings lower than 141 meters, and thus is an ideal tower crane machine in civil construction industry.

Main features of QTZ300A(TC7030A) tower crane

(1)The rated lifting moment of QTZ300A(TC7030A) tower crane is 300 t.m. The max working range is 70m. Max working range lifting weight is 3.0t. Large coverage improves transport efficiency.

(2)The standard section of the tower body is a sheet-mounted structure, and sheets are bolted together. This way brings convenience to disassembling and assembling, transporting, stacking, and storing.

(3)QTZ300A(TC7030A) tower crane is equipped a set of hydraulic rising mechanism, which may not only smoothly lift-up, but also accurately and reliably position.

(4)The hoisting mechanism is a dual-motor system, provides slow moving in function. It offers smooth starting and accurate positioning, besides, its high speed gear is able to give fast working speed with high working efficiency. 

(5)The wide and brilliant operator cab brings widen field of vision, convenient and comfortable operation.

(6)The fail-safe device not only is complete, and high accuracy, but also works reliably, can be adjusted in a simple and convenient way.


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Q:What is a tower crane without a collector?
Once again, because the collector is using carbon brush and copper ring contact, the tower crane work in the sway of the impact is too large, easy to cause carbon brush and copper ring arc between burning. Combined with this reason, today's tower cranes do not use collector. The drawback is that the tower crane can not be one-way one-way rotation. So now the use of rotary limiter, set the tower one-way rotation can only turn 540 degrees, want to turn, can only turn in the opposite direction.
Q:What special operators should be equipped for the installation and disassembly of tower cranes?
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.
Q:Emergency treatment of interrupted electricity during lifting of tower crane
It is very dangerous to stop the electricity during the lifting of tower crane. Because the slewing brake is missing, the tower crane is very dangerous because the wind rotates.
Q:What are the conditions of tower cranes, strictly prohibited?
A. Products obsolete by the stateB, over the specified service life, failed to assess the quality of the productC, products that do not conform to national or trade standardsD, products without complete security technical records
Q:Climbing process of an internal climbing tower crane
There are two kinds of climbing mechanisms: hydraulic and mechanical. The hydraulic climbing mechanism consists of a ladder ladder, a hydraulic cylinder, a climbing beam and a support leg. The climbing ladder is composed of an upper and a lower bearing beams, separated by two stories, which are fixed on the wall or side beam of the cylindrical structure when the work is used, and both sides of the ladder stand are provided with steps. The load bearing beam corresponds to the four main limbs of the crane tower, and is equipped with 8 guide rollers, which plays a guiding role when climbing.
Q:How to build a tower crane?
7, the boom of the horizontal installation, setup of counterweight, main hoist installation, installation sequence of these large, there are provisions in the instructions.8 、 install operating room, main cable and control cable. Installation of crane wire rope, hook, lifting the car has been in the assembly of the boom when installed.9, at this time has completed the basic installation, the later self lifting installation, the main work by the tower crane itself equipment and artificial to complete.10 tower crane from basic height to work height.Each type of tower crane has different self lifting mounting methods. In fact, in addition to carrying heavy loads, the installation of a large number of high-strength bolts is a heavy work.11, the above is the general procedure, the actual installation work in strict accordance with the installation instructions. According to historical experience, tower crane installation accidents often occur in some professional installation team.12, the old type of tower crane installation is relatively simple, but also have independent installation, and now the development of automobile crane is not a must, general use of car crane can complete all the installation.
Q:Does tower crane belong to special equipment?
Tower crane is a high-altitude operation, the type of work belongs to special types of work, equipment belongs to special equipment.
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 courses should I take to buy the tower crane to be installed?
First in the construction, some costs incurred during the installation, after installation costs together included in the original value of fixed assets.
Q:Calculate the tower crane gantry crane
It's a gantry crane, not a tower crane

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