Description
Magnetic stirring bar, PTFE, 65 x 20 mm, elliptical is a precision laboratory accessory engineered for reliable mixing of liquids in beakers, flasks and reaction vessels. Measuring 65 mm in length and 20 mm in diameter, this ellipsoid-shaped stir bar delivers smooth, stable rotation on standard magnetic stirrers while minimising jumping or wandering. The seamless coating of polytetrafluoroethylene (PTFE) provides outstanding chemical resistance to acids, bases, solvents and aggressive reagents, ensuring long service life even under demanding conditions. Its elliptical geometry promotes efficient vortex formation and thorough homogenisation of samples ranging from aqueous buffers to viscous media. Packaged as 10 pc(s), the bars are ready for immediate use in analytical chemistry, biochemistry, pharmaceutical development and routine quality-control workflows. Manufactured by Brand, each unit combines a strong internal magnet with a chemically inert outer layer that withstands autoclaving and repeated cleaning cycles. The 65 mm × 20 mm dimensions suit a broad range of vessel sizes, offering versatile performance from small-scale synthesis to larger preparative work. These PTFE elliptical stirring bars support consistent, contamination-free agitation essential for reproducible laboratory results.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
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Questions about Magnetic stirring bar PTFE, 65 x 20 mm, oval
What is this article?
Magnetic stirring bar PTFE, 65 x 20 mm, oval is the article on this page. Luminix Health distributes Brand for laboratory use. It sits in Magnetic stirring bars, inside Stirring, shaking & mixing, in Lab instruments.
A magnetic stirring bar is the magnet coated in PTFE that spins inside a vessel, driven by a stirrer underneath. Length and shape, plain, oval or cross, have to suit the flask. A bar left against a dry glass wall will grind it.
Stirring keeps a mixture uniform or helps a solid dissolve. A magnetic stirrer spins a bar inside a closed vessel. An overhead stirrer drives a shaft when the liquid is viscous or the volume is large. A vortex mixer agitates a tube. A shaker moves a whole rack or a plate. The shape of the impeller and the speed decide whether the liquid turns over or merely spins. The vessels being stirred are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stirring, shaking & mixing. The sub-category is Magnetic stirring bars. The catalogue is Lab instruments.
Shelves beside this one are Stirring shafts, propellers & impellers, Magnetic stirrers, Stirring & mixing accessories, Homogenisers & dispersers, Shakers, rockers & rotators, Overhead stirrers and Vortex mixers.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

