MAGNETIC STIR BAR, 30 MM This magnetic stir bar, approximately 30 mm in length, is a versatile laboratory accessory designed for efficient liquid mixing. Its PTFE (Teflon) coating ensures chemical non-reactivity and smooth operation, while the durable magnetic core provides reliable stirring performance.

Main Benefits

The cylindrical shape offers excellent centering and smooth rotation.
The PTFE coating ensures broad chemical compatibility and easy cleaning.
Operates effectively across a wide range of temperatures, including thermal stirring applications.
A pivot ring (in some models) reduces friction and enhances vortex formation, even in uneven or curved vessels.

Composition

Outer PTFE (Polytetrafluoroethylene) coating Magnetic core (typically Alnico-5 or a high-strength permanent magnetic alloy) Pivot ring (in suitable models) to improve stirring dynamics

Usage Instructions

Designed for use with magnetic stirrers to mix liquids in laboratory or professional environments Select the appropriate model (with or without a pivot ring) based on the vessel shape and stirring requirements Ensure the magnetic stir bar is clean and centrally placed in the vessel before operating the stirrer

Package Size

Available in packs of one or 10 units, depending on the supplier and model

Note

Models with pivot rings are particularly useful for vessels with uneven or curved bases, as the ring helps maintain optimal stirring position and reduce wear.