Description
BOLA cylindrical magnetic stirring bars with a length of approximately 12 mm and a diameter of approximately 4,5 mm are standard laboratory stir bars for reliable mixing. Each bar incorporates an Alnico 5 magnetic core fully enclosed in a polytetrafluoroethylene (PTFE) coating, delivering universal chemical resistance in typical laboratory media. The round rod form factor promotes smooth coupling with magnetic stirrer fields and stable rotation in flasks, beakers, and similar vessels. Packaged as 20 pc(s) with a net weight of 0,001 kg per bar, this format supports multi-station work and frequent replacement needs. PTFE encapsulation protects the magnetic core from corrosive reagents and aids cleaning between runs. These cylindrical stirring bars from manufacturer Bohlender are suited to everyday stirring tasks in chemical, analytical, and life-science environments where chemical inertness and consistent dimensions are required. Approximate dimensions of 12 mm length and 4,5 mm diameter fit a broad range of small- to medium-volume applications. The pairing of Alnico 5 magnetism with an inert PTFE overcoat enables dependable mixing without introducing metallic contamination into the process stream.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 20 pc(s)
- Product type: Cylindrical magnetic stirring bar
- Length: approx. 12 mm
- Diameter: approx. 4,5 mm
- Material: Polytetrafluoroethylene (PTFE)
- Magnetic core: Alnico 5
- Technical Information Sheet:
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Questions about BOLA Cylindrical Magnetic Stirring Bars, L 12 mm Ø 4,5 mm PTFE-coated
What is this article?
BOLA Cylindrical Magnetic Stirring Bars, L 12 mm Ø 4,5 mm PTFE-coated is the article on this page. Luminix Health distributes Bohlender 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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.