Description
Magnetic stirring bar, PTFE, 25 x 6 mm, cylindrical, small centre ring is a precision laboratory accessory for effective magnetic mixing of liquids. This cylindrical PTFE stirring bar measures 25 mm in length and 6 mm in diameter and incorporates a small centre ring for improved rotational stability. Fabricated from polytetrafluoroethylene (PTFE), it offers excellent chemical resistance against a broad spectrum of laboratory reagents and solvents. The round bar form promotes smooth, consistent stirring action in beakers, Erlenmeyer flasks and other vessels without damaging glass surfaces. Packaged in units of 10 pieces and available from manufacturer Brand, these bars integrate seamlessly with magnetic stirrers used in research, quality control and educational settings. The small centre ring design helps prevent the bar from drifting or spinning irregularly, ensuring uniform agitation even during prolonged experiments. Suitable for aqueous and organic media alike, the PTFE construction maintains sample integrity while delivering reliable performance across diverse applications such as dissolution, suspension preparation and reaction monitoring. Its inert surface minimises adsorption of analytes and supports easy cleaning between uses. Laboratories select these stirring bars for their durability and compatibility with standard stirring equipment, facilitating reproducible results in daily workflows.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
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Questions about Magnetic stirring bar PTFE, 25 x 6 mm, cyl., small pivot ring
What is this article?
Magnetic stirring bar PTFE, 25 x 6 mm, cyl., small pivot ring is the article on this page. Luminix Health distributes Brand 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.

