SJ TOWER CRANE QTZ40(TC4708)

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Tower crane TC4708 description

TC4708 tower crane is our company according to the design of tower crane"GB/T5031-2008" model of the tower crane.

1) work much, wide range of use, this machine has a fixed base and wall attachment type.

2) has high working speed, good performance of speed regulation, stable operation, high efficiency. Three speed motor and single speed ratio reducerused in lifting structure, so that the heavy load and low speed, light load speed.

3) crane configuration lifting height limiter, moment limiter, amplitude limiter,lifting weight limiter, slewing limiter, rotary, traction mechanism brake safety device, and trolley rope breaking resistant, anti broken shaft device, themachine is suitable for various different construction environment, ensure thework reliability of tower crane.

4) cab uses linkage Taiwan advanced operation of the mechanism of action of easy operation, simple repair.

Tower crane TC4708 technical parameters

The maximum working range of 46.8m, end weight and maximum take-off weight of 4T 0.8T

Mechanism is equipped with three speed synchronous motor brakingimpact small shift, smooth

Luffing mechanism can provide two kinds of speed.

Free height of 30 (m)

The maximum height of 120 (m)

The tunable 35 / 41 / 46.8 of the scope of work (M)

The minimum working distance (3 meters)

The maximum lifting capacity of 4 (T)

End load "(T) 0.8 (M)


The minimum working range of 3 (M)

The maximum lifting capacity of 4 (T)

End load "(T) 0.8 (M)


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Q:Is it difficult to test tower cranes?
A tower crane installation scheme, 1, compilation basis, project overview, working environment, 2 workers and 3 endurance calculation and installation equipment for 4, installation procedures, methods and requirements for 5, commissioning record 6, two safety technical measures, safety technical disclosure, three installation foundation concrete test report of four, the tower crane installation and acceptance of table five, safety supervision station issued a permit for six, seven, demolition demolition project safety technical clarificaiton tower crane installation scheme project name: preparation: position (title): Approval: job (title): the construction unit: tower crane installation demolition project, the preparatory work before construction: 1. The tower crane installation position, according to the effective range of the construction requirements, site conditions and the role of tower crane, convenient installation and disassembly, the tower crane configuration in 17 axis to 18 Between the axis, away from the outer wall of 5 meters, with 11 standard section. 2, the basis of the principle, the use of concrete foundation, strictly according to random basis drawing. 3, the examination of concrete pressure report, tower foundation has been completed by design and construction, the safety group acceptance, the basic test block delivery, after the test pressure qualified, must be installed. 4. The installation site is level and the channel is repaired. 5, transport parts admission
Q:Tower crane installation, wind speed is greater than 12m/s, wind should stop operation,
Surface wind speed is greater than 6
Q:QTZ63 (Q5610) tower crane power, how many power parts, name, model specification, product number, date of appearance
All the details of the equipment are availableAs for power, it depends on the specific configuration of the frequency conversion and non frequency conversion will not be the same
Q:How many meters of cranes should be in accordance with the anemometer?
In accordance with national regulations, outdoor cranes need to install anemometer.Specific provisions"GB6067.1-2010 crane safety regulations", 9.6.1 anemometer and wind speed alarm9.6.1.1 high speed cranes for outdoor work shall be equipped with an anemometer. The anemometer shall be located upwind of the upper part of the crane.9.6.1.2 high speed crane for outdoor operation should be equipped with an air speed alarm that displays instantaneous wind speed, and when the wind speed is greater than the working wind speed setting value, the alarm signal should be sent out.
Q:What is the torque limiter of the tower crane A: the lift is stopped when the lifting torque is exceeded. B: over gravity
The torque limiter acts as follows: (a)In lifting process, when the weight of the lifting object moves ahead of the trolley when the lever force exceeds the moment limiter, the hook rises, the motor and the trolley forward motor are stopped at the same time, and the utility model has the safety function.
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: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 many meters is the tower crane installed on the edge of the deep foundation pit?
Hello, it depends on your design requirements, generally have the pit bottom, straight out of a tower crane base do. Or elevator shaft is also more. Generally, the foundation pit is shallow foundation pit or relatively small foundation pit.
Q:What is the wall radius of a qtz50 tower crane?
The working radius is usually 50 meters. There are also 48, 49 meters. For example, 4810, 4910, and 5010, belong to 50 tons of tower cranes.Qtz50 resolves to:Q: crane;T: Tower type;Z: Jack up;50: lifting torque of 50 tons meters.
Q:What does tower crane 400tm mean?
Lifting torque of 400 tons. Meters, also known as 4000KN/m, refers to the QTZ400 tower crane, the general maximum lifting capacity of 25 tons, big arm 70 meters, the most front-end hanging 5.2 tons, independent height of about 70 meters. Normally we say QTZ40 tower crane is lifting torque of 40 tons. Meters, 400KN/m.

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