the electromagnet for what purposes

the electromagnet for what purposes
Switch (relay), cranes, bells, telephones, including stereo speakers

Solenoid has many advantages: it can be energized without magnetic, power to control the strength of its magnetic strength can be controlled by a current, its polar direction of the current can be controlled by the conversion, it is very easy to use . Therefore, in production, life, science and technology many uses. For example, there is a large crane electromagnetic solenoid, pass on the current, one will be able to put a few tons of steel material handling sucked up to the specified location. drum separator The grinding machine shop work bench without clamps, and was very firmly workpiece being sucked out in the above process. Workbench is a large electromagnet, the power attracted to the magnetic steel or the workpiece there, when not energized is not magnetic, steel or workpiece which may release, by the electromagnet electromagnetic effects processing machine iron and non-ferrous materials can be separated .