How Laboratory Temperature-Controlled Stirrers Work

　　A magnetic stirrer uses a small motor to rotate a strong heat-resistant magnet, generating a rotating field that drives the stir bar inside the vessel. Together with heating, this enables thorough mixing and reaction at the set temperature, with broad applications.

Commonly used in laboratories:Model 85-2 Temperature-Controlled Hotplate Magnetic Stirrer

A magnetic stirrer uses a small motor to rotate a strong heat-resistant magnet, creating a rotating field that drives the stir bar inside the vessel. Combined with heating, it enables thorough mixing and reaction at a set temperature and is widely used in biology, medicine, chemistry and chemical engineering. It supports heating alone or simultaneous heating and stirring of low-viscosity liquids and solid-liquid mixtures. Place the liquid and stir bar in a vessel; the magnetic field generated by the base rotates the bar to mix the liquid. Changing base polarity and magnetic repulsion between like poles drive the bar.

　　Laboratory magnetic stirrers are usually compact, and temperature-controlled models generally include heating. In this usage, a hotplate stirrer is a temperature-controlled stirrer, and a temperature-controlled stirrer is a heated stirrer.

　　How Laboratory Temperature-Controlled Stirrers Work

　　Magnetic stirrers use repulsion between like poles and continuously changing base polarity to rotate the magnetic stir bar.