Description
Magnetic stirring bars with PTFE coating, cylindrical form, L 8 x d 3 mm, are compact laboratory stir bars designed for reliable mixing in small vessels and reaction setups. Each bar combines a magnetic core with a smooth polytetrafluoroethylene surface that resists common laboratory chemicals and minimises adhesion of residues during routine stirring. Supplied as a pack of 30 pieces, the set supports parallel experiments, teaching laboratories, and everyday sample preparation where consistent geometry and chemical inertness matter. The cylindrical profile promotes stable rotation on magnetic stirrers and helps maintain uniform agitation in flasks, beakers, and vials of limited volume. With a net weight of 0,010 kg for the pack, the bars are lightweight yet practical for general laboratory use. These PTFE-coated cylindrical stirring bars from manufacturer Labbox suit standard aqueous and organic media workflows without specialised coatings or exotic geometries. Dimensions of 8 mm length and 3 mm diameter make them especially convenient for micro-scale and small-volume applications where space is constrained. Ideal for chemistry, biology, and analytical laboratories needing dependable, ready-to-use stir bars in bulk quantity.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
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Questions about Magnetic stirring bar, cylindrical, l 8 x diam. 3 mm, 30 pcs
What is this article?
Magnetic stirring bar, cylindrical, l 8 x diam. 3 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.
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.

