Description
Magnetic stirring bar polygon, PTFE, 27 x 57 mm is a specialised laboratory stirring element designed for efficient mixing in vessels of appropriate size. The bar features a polygonal cross-section and measures 27 mm in diameter by 57 mm in length, providing strong magnetic coupling and stable rotation. Manufactured entirely from polytetrafluoroethylene (PTFE), the stirrer offers broad chemical resistance and a non-stick surface suitable for a wide range of aqueous and organic media. The special polygonal form improves turbulence compared with conventional cylindrical bars, supporting thorough homogenisation even at moderate speeds. Produced by manufacturer Vitlab, this stirring bar is intended for everyday use on magnetic stirrers and hotplate stirrers in chemical, pharmaceutical and analytical laboratories. Supplied in packs of 10 pieces, the PTFE construction ensures durability and easy cleaning after use. The defined dimensions allow reliable selection for flasks and beakers where a larger stirring element is required. The chemically inert material maintains integrity across typical laboratory temperature and solvent conditions.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 10 pieces
- Shape: Polygon
- Material: Polytetrafluoroethylene (PTFE)
- Diameter: 27 mm
- Length: 57 mm
- Stir bar form: Special form
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Questions about Magnetic stirring-bar, PTFE, POLYGON, 27 x 57 mm
What is this article?
Magnetic stirring-bar, PTFE, POLYGON, 27 x 57 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.
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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.