Description
Magnetic stirring bar 20×6 mm is a cylindrical laboratory stir bar without a centre ring, equipped with smooth surfaces for dependable mixing. A magnetic core with full PTFE coating provides chemical resistance and low-friction contact inside glass or plastic vessels. Length is 20 mm and diameter is 6 mm, offering a slightly longer profile than smaller bars while remaining suitable for medium-sized flasks and beakers. The round bar form supports steady rotation on conventional magnetic stirrers. Units are packed in sets of 10 pieces for convenient stock replenishment. From manufacturer Marienfeld, these PTFE-coated stirring bars address everyday laboratory stirring tasks where a plain cylindrical geometry without a mid-ring is required. Smooth exteriors reduce residue retention and ease cleaning, making the bars practical for repeated use across research, analytical and educational environments handling aqueous or organic media.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 10 pc(s)
- Length: 20 mm
- Diameter: 6 mm
- Shape: Cylindrical (round bar)
- Material: PTFE-coated magnetic core
- EAN: 4250317314857
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Questions about Magnetic stirring bars 20x6 mm,
What is this article?
Magnetic stirring bars 20x6 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.