Description
Magnetic stirring bar 8x3 mm is a compact cylindrical laboratory stir bar with a magnetic core fully encapsulated in polytetrafluoroethylene (PTFE). Measuring 8 mm in length and 3 mm in diameter, it features smooth outer surfaces and is supplied without a centre ring, allowing free, unrestricted rotation in small vessels, vials and reaction tubes. The inert PTFE coating provides broad chemical resistance against many solvents, acids and bases routinely used in analytical chemistry, biochemistry and sample preparation. Its round rod geometry promotes stable spinning and reliable vortex formation on standard magnetic stirrers and multiposition drive systems. Packaged as 10 pieces, these bars from manufacturer Marienfeld support reproducible mixing where space is limited and residue adhesion must be minimised. Smooth surfaces simplify cleaning between runs and help reduce cross-contamination risk. The small 8×3 mm format balances adequate magnetic coupling with a minimal footprint, making it well suited to micro-scale work, titration setups and everyday laboratory agitation tasks that demand dependable, chemically inert stirring performance.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 10 pc(s)
- Length: 8 mm
- Diameter: 3 mm
- Shape: Cylindrical (round rod)
- Center ring: No
- EAN: 4250317314802
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Questions about Magnetic stirring bars 8x3 mm,
What is this article?
Magnetic stirring bars 8x3 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.
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.