Does a Magnetic Stirrer's Rotor Represent Its Speed?
An online question asked whether a magnetic stirrer's rotor represents its rotational speed. This calls for clarification of what the rotor actually is.
The rotor, also called a magnetic stir bar, is an essential component that performs the mixing. Without it, the stirrer does not mix the liquid. Speed is determined by the motor, not the bar itself. Shanghai Meiyingpu manufactures magnetic stirrers for laboratories, with speeds generally around 0–2500 and specific ranges varying by model.
Two common stir-bar categories are permanent-magnet stir bars and PTFE stir bars.
PTFE Stir Bars are commonly used where heat and acid resistance are needed. Permanent-magnet bars offer strong magnetism but are unsuitable for acid-resistant applications. Contact Shanghai Meiyingpu for assistance.
