Description
Magnetic stirring bars with PTFE coating, cylindrical form, length 20 mm and diameter 6 mm, are versatile laboratory consumables for continuous mixing on magnetic stirrers. Each unit features a magnet fully encapsulated in PTFE, giving a chemically robust outer layer that withstands routine contact with many reagents and simplifies cleaning between runs. The cylindrical shape encourages steady spin behaviour in common glassware, helping maintain homogeneous solutions, suspensions and reaction mixtures. Packaged as 30 pieces, the set supports high-throughput benches, shared instrument rooms and teaching labs that consume stirring bars regularly. Net weight is 0,010 kg per pack. These bars from manufacturer Labbox are specified for general use and work with conventional magnetic drive systems. At 20 mm length and 6 mm diameter they suit medium vessel sizes where a slightly longer profile improves mixing efficiency without occupying excessive volume. PTFE coating protects the core and limits sample carry-over, making the bars practical for research, quality control and preparative workflows that rely on dependable, easy-to-handle magnetic stirring elements.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 30 pc(s)
- Shape: Cylindrical
- Coating: PTFE
- Length: 20 mm
- Diameter: 6 mm
- EAN: 8434868028777
- GTIN: 08434868028777
- Technical Information Sheet:
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Questions about Magnetic stirring bar, cylindrical, l 20 x diam. 6 mm, 30 pcs
What is this article?
Magnetic stirring bar, cylindrical, l 20 x diam. 6 mm, 30 pcs is the article on this page. Luminix Health distributes Labbox 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.