Description
Magnetic stirring bar 80x9 mm is a cylindrical PTFE-coated stir bar intended for reliable mixing in laboratory vessels. With a length of 80 mm and a diameter of 9 mm, it features a magnetic core enclosed in polytetrafluoroethylene and is supplied without a centre ring. Smooth outer surfaces reduce friction on the vessel base and help maintain a steady vortex on magnetic stirrers. The inert PTFE coating provides broad chemical resistance, protects the magnet from corrosive media and facilitates cleaning after use. Suitable for dissolution work, sample preparation and general stirring tasks in beakers and flasks, the bar supports everyday analytical and research applications. Each pack contains 10 pieces for convenient laboratory stocking. The elongated cylindrical form suits larger working volumes while retaining controlled, reproducible motion. These stirring bars from manufacturer Marienfeld combine durable PTFE encapsulation with a simple round-rod design for consistent performance across common aqueous and organic solvent systems.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 10 pc(s)
- Length: 80 mm
- Diameter: 9 mm
- Shape: cylindrical (round rod)
- Centre ring: no
- EAN: 4250317314932
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Questions about Magnetic stirring bars 80x9 mm,
What is this article?
Magnetic stirring bars 80x9 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.

