Description
BOLA egg-shaped magnetic stirring bars with PTFE coating are ellipsoid laboratory stir bars measuring approximately 35 mm in length and 15 mm in diameter. A PTFE-encapsulated Alnico 5 magnetic core delivers universal chemical resistance, making the bars suitable for a wide spectrum of laboratory media. The egg-shaped (ellipsoid) profile promotes steady rotation and thorough mixing and is specified for round-bottom flasks conforming to DIN 12 348 with a nominal volume of 250 ml. Offered as a single piece with a net weight of 0,015 kg, these stirring bars from manufacturer Bohlender support everyday sample work, reaction mixtures and general magnetic stirring tasks that require chemical inertness together with dependable magnetic drive. The continuous PTFE coating protects the core while remaining compatible with common laboratory solvents and reagents. Length and diameter are selected for mid-range flask volumes, helping achieve consistent agitation on standard magnetic stirrers in research, teaching and quality-control laboratories.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 1 pc
- Length: approx. 35 mm
- Diameter: 15 mm
- Material: Polytetrafluoroethylene (PTFE)
- Shape: Ellipsoid
- Magnetic core: Alnico 5
- Technical Information Sheet:
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Questions about BOLA Egg-Shaped Magnetic Stirring Bars, L 35 mm Ø 15 mm PTFE-coated
What is this article?
BOLA Egg-Shaped Magnetic Stirring Bars, L 35 mm Ø 15 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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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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.