What is the difference between IKA magnetic stirrers and overhead stirrers?
Magnetic stirrers use a rotating magnetic field to drive a stir bar — ideal for low-to-medium viscosity liquids in closed vessels. Overhead stirrers use a motorized shaft and impeller — suited for high-viscosity, high-volume, or aggressive media where a magnetic stir bar would be insufficient. IKA offers both in basic and advanced models.