Description
Magnetic stirring bar 50 × 8 mm is a cylindrical laboratory stir bar designed for reliable mixing in beakers, flasks and other vessels on magnetic stirrers. Measuring 50 mm in length and 8 mm in diameter, it features a magnetic core fully encased in a smooth polytetrafluoroethylene (PTFE) coating that resists aggressive chemicals and minimises adhesion of residues. The bar has no centre ring and presents continuous smooth surfaces, supporting stable rotation and reduced wear on vessel bases during prolonged stirring. Supplied in packs of 10 pieces from manufacturer Marienfeld, these PTFE-coated stirring bars suit routine sample preparation, dissolution work and general wet-chemistry applications where chemical inertness and cleanability matter. The round rod geometry promotes consistent vortex formation across a range of solvent viscosities, while the durable PTFE jacket protects the magnet from corrosion and contamination. Ideal for research, quality-control and teaching laboratories that require dependable, low-maintenance magnetic stirring accessories in a practical multi-piece pack.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 10 pc(s)
- Length: 50 mm
- Diameter: 8 mm
- Shape: Cylindrical (round rod)
- Centre ring: No
- EAN: 4250317314901
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Questions about Magnetic stirring bars 50x8 mm,
What is this article?
Magnetic stirring bars 50x8 mm, is the article on this page. Luminix Health distributes Marienfeld 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.