JLF electronic control

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Introduction

The electric cabinet adopts the transduser used in hoisting in Japan, and is self-designed and produced for the tower crane hoisting electrical cabinet.Since the speed regulation is step speed control, the cabinet has the advantages of good speed performance, smooth, high effciency, better overloading ability, and high energy-saving performance, and is superior to other ordinary electric control.

Temperature range:

Ambient sir temperature:+40°C~-1040°C(customers may request a special design).

Humidity:less than 95%(NO dewfall)

Altitude:

The altitude of the installation location shall not be higher than 12000M.

Power grid quality:

The line voltage fluctuation range does not exceed +10%~-5% of the rated voltage, power supply shall be assured.

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Q:Tower crane (tower crane)
In the form of the structure for the tower type, flat type and movable arm type. The model can be divided into QTZ63 suspension, QTZ80 crane, QTZ125 crane, QTZ crane, 315 crane and so on according to the moment division. Now used to arm length + tip weight of the way named, for example, 5513, that is, the longest length of 55 meters arm, the tip of the largest weight of 1.3 tons.
Q:How often should the crane be inspected regularly?
Lifting machines are inspected regularly every two years, and explosion-proof lifting machines shall be inspected regularly every year. Must have the corresponding inspection qualification inspection.
Q:The rated lifting capacity of a tower crane refers to what is allowed and what is allowed to be divided by the crane
The total quality of the crane rated liftingweightincludes the lifting load and the hook and rope a simplified example, such as the rated lifting weight of 100 tons, the quality of the hook and spreader for 5 tons, the actual quality of the goods can lift 95 tons.
Q:How did they get that crane on the top of the Deutsche Bank bldg here by the WTC in NY?
Deutsche Bank... German Bank... well they heard that someone else wanted to put a crane up there, and so they got up at 5 am and made sure theirs was there first... using the same methods as they do with their towels at a beach or pool on holiday! Hee hee... But most probably with extreme cleverness!
Q:How to distinguish self lifting tower crane with counterweight and lifting tower crane without counterweight
With the weight of the tower crane is mainly ordinary tower cap tower crane, tower crane and tower crane type, is made of concrete counterweight pieces of the balance arm, is also useful for iron making, but relatively rare.The tower crane without counterweight is mainly a city quick loading tower crane. It is characterized by the absence of balance arm, and it is impossible to have counterweightThe layman can not tell the can see the appearance, there are long steel structure before and after the weight of the tower body, and no weight of the tower body with only one steel structure (i.e. jib crane, structure)
Q:Tower crane 5610 why is it called QTZ63?
Q is reusable, T is tower, Z is jack up, and combined is jack up tower crane. (this is the earliest known China, now the various manufacturers have their own name, some close to the French take, such as F0/23B, the tower jib 50 meters, a maximum weight of 10 tons, 2.3 tons of weight lifting arm tip)80 is the moment, the unit is t * m, (should say is the force multiplied by distance, 800kn.m) for 5613 cranes, the maximum lifting capacity of 8 tons, the boom length is 56 meters, arm tip lifting weight 1.3 tons, maximum weight in the range of 2.5 meters ---13 meters, calculation of 8 * 13=104, so the name is QTZ104, now the provisions should be a QTZ104, but before, people think is 8 tons of weight, so called QTZ80, is now available.
Q:how does a electro megnetic crane works?
Current sent through a coil of wire creates a magnetic field, which can be used to pick up ferromagnetic objects. Turn off the current, and the field will turn off (although it might take a few seconds to turn off all the way), dropping the object.
Q:What kind of personnel should be installed for the tower crane installation and disassembly?
2, with special construction operation qualification certificate of construction, lifting machinery, installation, demolition workers, lifting signal workers, lifting drivers, cable operators and other special operations personnel.And an electrician.
Q:How do you fold a piece of paper into a crane?
There okorder.com/
Q:1000 paper cranes a myth?
my daughter's art club did this for a hospital not to long ago...they made 1300 paper cranes and hung them from the ceiling in one of the hospital wings. I don't know about being granted one wish, but it made the patients happy and smile no matter how sick they were. I've heard the paper crane was some how connected with leukemia, so she made one for a friend of mine's son (he is only 7 and has battled this disease for 2 years) and it made him happy to know that someone who doesn't know him would make something like that for him.

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