Description
Magnetic stirring bar polygon, PTFE, 3 × 13 mm is a compact stir bar designed for efficient mixing in small laboratory vessels and narrow containers. With a diameter of 3 mm and a length of 13 mm, the polygonal geometry generates enhanced turbulence compared with conventional cylindrical bars, improving mixing performance at low volumes. The bar is fully encapsulated in chemically inert polytetrafluoroethylene (PTFE), providing broad resistance to solvents, acids and bases routinely encountered in chemical and biological work. This product from manufacturer Vitlab is supplied in packs of 10 pc(s) and is intended for use on standard magnetic stirrers where reliable, contamination-free agitation is required. The special polygonal form promotes thorough sample homogenisation in tubes, vials and small flasks. PTFE encapsulation ensures easy cleaning, chemical durability and long service life under repeated laboratory use, making the bar suitable for analytical chemistry, sample preparation and research applications demanding precise low-volume stirring.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 10 pc(s)
- Product type: Magnetic stirring bar
- Shape: Polygon
- Material: Polytetrafluoroethylene (PTFE)
- Diameter: 3 mm
- Length: 13 mm
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Questions about Magnetic stirring-bar, PTFE, POLYGON, 3 x 13 mm
What is this article?
Magnetic stirring-bar, PTFE, POLYGON, 3 x 13 mm is the article on this page. Luminix Health distributes Vitlab 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.

