Description
Magnetic stirring bar PTFE coated, oval, 20 × 8 mm is an elliptical stir bar intended for efficient mixing, particularly in round-bottom flasks. The core consists of an ALNICO magnet (aluminium–nickel–iron–cobalt alloy) fully encapsulated in a seamless PTFE coating that provides broad chemical resistance and a smooth, low-friction surface. The oval geometry promotes strong vortex formation and thorough agitation even at moderate speeds, while the polished exterior supports stable centring and continuous, quiet rotation with reduced risk of jumping. Measuring 20 mm in length and 8 mm in diameter, this compact bar suits small- to medium-volume vessels commonly used in synthesis, sample preparation and analytical work. Supplied by manufacturer ISOLAB Laborgeräte as a single piece, the PTFE-coated oval magnetic stirring bar offers reliable performance for routine laboratory stirring applications where chemical inertness and consistent mixing are essential.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 1 pc
- Shape: Oval (elliptical)
- Dimensions: 20 x 8 mm
- Coating: PTFE
- Magnet core: ALNICO
- EAN: 4250362633798
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Questions about magnetic stirring bar - oval - 20x8 mm
What is this article?
magnetic stirring bar - oval - 20x8 mm is the article on this page. Luminix Health distributes ISOLAB 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.
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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.