Description
Cylindrical PTFE-coated magnetic stirring bar 6 x 25 mm is a laboratory stirring element built around an ALNICO magnet—an alloy of aluminium, nickel, iron and cobalt—fully encapsulated in a PTFE coating. The cylindrical geometry provides a wide application range and delivers optimal mixing action in beakers, flasks and similar vessels. Polished surfaces promote reliable centring and smooth, uninterrupted rotation, while the close contact with the vessel base helps minimise spin-out during stirring. These PTFE-encapsulated bars from manufacturer ISOLAB Laborgeräte combine the chemical resistance of the outer coating with the strong magnetic response of ALNICO, making them suitable for routine laboratory homogenisation and media preparation. Supplied as a pack of 10 pieces, the 6 x 25 mm cylindrical format supports efficient vortex formation at typical laboratory speeds and offers balanced performance across flat-bottomed containers. The robust encapsulation protects the magnet core and maintains consistent stirring behaviour in everyday chemical and biological workflows.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 10 pc(s)
- Shape: Cylindrical
- Dimensions: 6 x 25 mm
- Coating: PTFE
- Magnet material: ALNICO
- EAN: 4250362633637
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Questions about magnetic stirring bar - cylindrical - 25 x 6 mm
What is this article?
magnetic stirring bar - cylindrical - 25 x 6 mm is the article on this page. Luminix Health distributes ISOLAB 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. Delivery across Europe, two to five days when in stock. 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.

