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Lifting electromagnet made of hard magnetic material

The lifting electromagnet made of a hard magnetic material, that is, a permanent magnet, is a new type of lifting electromagnet, which is a permanent magnet lifting electromagnet, which makes full use of the characteristics of the permanent magnet and combines practical use requirements. With its magnetic energy product, it can maintain a relatively long holding time for the sucked object, which is safe and reliable. It can get rid of the possibility of personal injury or equipment accident caused by the drop of the sucked object caused by power failure or other electrical failure. Its excitation coil is only used to change the polarity of the magnetic material, to achieve the basic operating procedures of suction and discharge, and the working time only takes a few seconds, or even a fraction of a second to complete the entire action. This kind of operation consumes less electricity and is generally more than 95% more than the lifting electromagnet made of soft magnetic materials. Therefore, it is a very ideal and energy-saving type. However, permanent magnet lifting electromagnets also have their limitations. They are not suitable for waste scattering when they are used to suspend and lift waste materials. When lifting single-piece steel plates and various shapes and billets, their temperature should not exceed 300°C. .

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