The electromagnetic Jack does not seem to use the principle of electromagnetic induction.
The permanent magnet electric energy saving and safety because of its unique properties, are widely used in the installation and removal of steel, machinery parts and all kinds of mold, mechanical processing, shipbuilding, engineering machinery, automobile and other industries for lifting, handling and other operations of the preferred lifting tool, we can often be in factories, docks, warehouses and transportation see this kind of products in the industry. HEPM92 electric permanent magnetic crane
Magnetic jack for permanent magnet lifting, lifting electromagnet and permanent magnet electric jack. The permanent magnet generally require manual rotating wrench demagnetization operation, high labor intensity, but also by the permanent magnet structure prevents electromagnetic permanent magnet to large size. Lifting electromagnet is magnetic in the work of the need to maintain the Everfount has power, high power consumption, and in the case of external power or coil system failure, will cause the workpiece to drop electromagnet magnetic loss, using low security. The electronic permanent magnet technology overcomes the shortcomings of the above mentioned permanent magnet and electromagnetic products, and sets up the advantages of the two - - using permanent magnetic force as the working suction, and controlling the charging and demagnetization with the power supply. The electric permanent magnet with high performance permanent magnet material inside, and equipped with the excitation coil. When the moment into the positive pulse, the permanent magnetic constant external display for magnetic moment; to reverse pulse power source, the permanent magnetic force in the magnets inside the closed, do not show magnetic (demagnetization), truly achieve the safe use, convenient operation etc..
As long as the electromagnetic jack, you cannot do without the principle of electromagnetic induction, electromagnetic Jack only with current, can be convenient to be and magnetic, so as to achieve the effect of suction on.