We Value Your Privacy

We and our partners use technology such as cookies on our site to personalise content and ads, provide social media features, and analyse our traffic. Click below to consent to the use of this technology across the web. You can change your mind and change your consent choices at anytime by returning to this site.

Update Consent
Loading ...

How magnets work in vacuum cleaners

Updated April 17, 2017

Strictly speaking, all vacuum cleaners use magnets. Magnets are crucial to the electric motors that create the cleaner's suction. Some vacuum cleaners, however, are adapted with a magnetic device that removes metallic objects before they are sucked up.

Loading ...

Magnets in Motors

Vacuum cleaners need electric motors to work. Inside every electric motor are several magnets, including permanent magnets and electromagnets. The magnetic fields push against each other to create the force that drives the motor. The motor, in turn, drives a fan, which creates the suction that pulls dirt and dust into the unit.

Metal Objects and Vacuum Cleaners

Over time, every household appliance suffers wear and tear. Vacuum cleaners are no exception. Small dust particles and soft fibres don't do much harm to the internal structure of the unit. Harder items such as small coins, needles and other metal objects can also get sucked up into the cleaner, however, and these can cause a little more damage. By removing these items before they enter the unit, magnets can help reduce this damage.


Not all metallic items are magnetic. Metals such as copper and aluminium are not attracted to magnets and therefore would not be affected by any kind of magnetic separation device.

Loading ...

About the Author

Clare Edwards has been providing Internet content since 1998. She has written and translated for a variety of markets: everything from technical articles to short fiction and essays on alternative spirituality. She holds a certificate of higher education in electronics and audio arts from Middlesex University.

Loading ...