Description
Magnetic stirring bar oval 20 x 65 mm is an ellipsoid PTFE-coated stir bar with permanent magnet core, designed for round-bottom flasks. Outer diameter is 20 mm and length is 65 mm, giving an elongated oval profile that seats well in curved vessel bases and promotes continuous mixing under magnetic drive. The bar is encapsulated in polytetrafluoroethylene (PTFE) for chemical resistance toward typical laboratory media, while the permanent magnet core ensures reliable coupling to the stirrer plate. Scientific form is specified as ellipsoid, aligning with common round-bottom flask geometries used in synthesis and sample work-up. Available from manufacturer Witeg in packs of 10 pc(s), each bar has a net weight of 0,052 kg. These magnetic stirring bars support everyday agitation tasks in chemical, pharmaceutical and analytical laboratories where oval PTFE stir fleas are preferred for flask work. Clear dimensional marking (20 × 65 mm) simplifies matching bar size to vessel volume and drive strength, and the PTFE jacket aids clean handling between successive experiments without introducing unnecessary complexity into standard stirring protocols.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 10 pc(s)
- Shape: Ellipsoid (oval)
- Dimensions: Ø 20 mm × length 65 mm
- Material: Polytetrafluoroethylene (PTFE)
- Core: Permanent magnet core
- Technical Information Sheet:
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Questions about Magnetic stirring bar oval 20 x 65 mm
What is this article?
Magnetic stirring bar oval 20 x 65 mm is the article on this page. Luminix Health distributes Witeg 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.
