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.

JLF electronic control

Q:How many tons of tower crane QTZ80A lifting?: Lifting torque = mass * radius of gyration (amplitude). That is to say, the bigger the weight is small.

Q:Has anyone ever folded 1000 paper cranes? If so did your wish come true? If it did come true what did you wish for? :) Thanks so much!: Yes i have. For a college friends wedding. The groom makes at least one crane. She was from Hawaii and it's one of the Philippine traditions. There's a story that goes along with it. In Hi there are companies that will take the flat cranes and form them into another design. like a vase or something that can be framed. I think her wish was just to get them finished within 1 week before the wedding... ;) We DID! That was luck in itself. not sure if her real wish came true.

Q:Military Action movie with bunch of cranes at the end?: Cranes like construction equipment or Cranes like the birds?

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:What qualifications do you need to be a Crane Operator in QLD, Australia?: You need to do a specific amount of hours in training to be a crane operator in Australia, I know that in Sydney, you are certified by the WorkCover Authority, or that's how it was many yeas back. Special emphasis is on loads, and point of load. We do not need a mobile crane tipping over do we. Safety, working near electrical, and on soft ground. Weight you can extend to on a jib. etc.

Q:National standards for tower cranes: Tower crane GB/T5031 - 2008 has been implemented since February 1, 2009. In accordance with the new standards promulgated, chief editor -- China Academy of Building Research Institute of building mechanization of Langfang, Beijing and Hebei respectively in Hangzhou, Nanning held the new standards xuanguan. Luo Wenlong, director of the standard editor and vice president of Li Shoulin, explained the new standards comprehensively. The new standards are quite different from the previous standards, adding a lot of security related content, mainly embodied in the following 3 aspects: 1) the principle of different. Previously considered issues mainly consider the domestic tower crane industry technology status, appropriately reflect the advanced nature, and now is the requirements and international benchmarking, consider safety. 2) different forms of organization. The standard used in scientific research institutes, universities, factory assistant; the preparation unit including Research Institute, and the host plant, supporting enterprises, universities, inspection unit, there are relatively large units on behalf of (rental business), etc..

Q:The fight sequence on the construction crane between 007 and villain Molakka was mezmorizing. But would the laws of gravity allow for it to happen in real life? I mean, acrobats perform similar stunts, but could the average super spy and villain?: anything scripted in general is not realistic,

Q:Where you stand on one leg with your hands up and out to sides.Isn't standing on one leg in a fight leaving you exposed and vulnerable? What techniques can you actually do from that stance anyway (other than jumping up and kicking with the leg that was on the ground like the karate kid).: Good question. Apart from the aspect of training, if you use it as a stance like in The Karate Kid in a real street fight or in a pub, it is comically useless. Movies are only movies and the moves are choreographed to captivate the audience's romanticism with Kungfu. But, having said this, the crane stance if used as a transitional move is a practical technique but both outstretched hands are either spear-hands or tiger-claws, not crane-beaks rising from the sides as in The Karate Kid. Or, if targeting only to the frontal opponent, both hands are forward, one fore and the other behind the front hand. The lifted leg is a frontal leg block either with the shin or knee. The knee must reach your solar plexus as a proper position. The whole centre-line is protected for an immediate instance, and is particularly used when there is a sneak attack from the front. But, don't ever use it as a stance waiting for an attack nor with any fanciful stances for that matter in real situations. To be effective with this technique, the person must be able to resist a frontal push while standing on one leg. To achieve this, he has to spend long hours on the 'horse-stance'. The common term for this single-legged stance is Golden Cockerel Standing On One leg, Jin Zi Du Li (my romanisation of Chinese is not to be trusted, but it sounds somewhat like that in Mandarin). As I said earlier, this is a transitional technique and really what follows after is the interesting part.

Q:Yeah, I think I know what cranes are used for. But in the context of building an apartment and so on, what is the role derricks there. And why is called cranes and derricks - What is the correlation between them.: Cranes are used for lifting heavy equipment. Derricks are used to drill for oil. They are two different things.

Q:Hello, i am goin in on Dec 5 to write the millwright C of Q for the 3rd time. On the test there was a question that went something like this The crane is rated 40Ton, with a boom lenght of 40ft and at an angle of 70 deg. The jib is 8ft long on a 10 deg angle. What is the sefe working load. The numbers are not correct but that is how the question is phrased. Please help me with the formula. I cannot find it anywhere.: Safe Working Load Formula

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