Spin Bar 1 1/2 Inch Pill Shaped Rare Earth

The 1.5 Inch Rare Earth Spin Bar is a pill-shaped laboratory magnetic stirring accessory for compatible magnetic stirrers and vessels. Its approximately 1 1/2-inch length provides a useful option for bench-scale mixing applications where a longer stir bar is appropriate. The internal rare-earth magnetic element couples with the rotating magnetic field generated by a stirrer to agitate compatible liquids.

The 1.5 Inch Rare Earth Spin Bar has a PTFE exterior, providing a smooth liquid-contact surface and useful resistance to many chemicals. PTFE is commonly selected for laboratory stir bars because it separates the internal magnet from the material being mixed. Users should still verify compatibility with the specific substance, temperature, and cleaning procedure involved.

The pill-shaped profile of the 1.5 Inch Rare Earth Spin Bar can provide smooth rotation in appropriately sized vessels. Actual performance depends on vessel geometry, liquid depth, viscosity, magnetic stirrer strength, and selected speed. If the bar begins jumping, rattling excessively, or losing magnetic coupling, reduce the speed and verify that the stir bar is properly matched to the vessel and mixing conditions.

Inspect the PTFE surface before each use. Replace the stir bar if it becomes cracked, deeply scratched, distorted, or otherwise damaged. Clean it with methods suitable for PTFE and the materials being handled. A compatible magnetic retriever can simplify removal from deeper beakers and flasks after mixing.

Select the 1.5 Inch Rare Earth Spin Bar for compatible magnetic mixing applications requiring a pill-shaped PTFE stir bar. Browse additional sizes, magnetic retrievers, hot plates, and mixers in our Lab Heating, Stirring & Mixing Equipment collection.