A magnetic mixer is a laboratory equipment that uses a rotating magnetic field to drive the magnetic mixer inside a container to rotate, thereby achieving the purpose of mixing, stirring, or heating solutions.

Its core principle is that there is a rotating magnet (or a rotating magnetic field generated by an electromagnetic coil) inside the host, which drives the magnetic stirrer (usually a magnet rod wrapped in polytetrafluoroethylene) placed in the sample container to rotate synchronously, thereby stirring the liquid.