Description
Rotilabo® ellipsoidal magnetic stirring rods are PTFE-coated laboratory stir bars specified with a diameter of 20 mm and a length of 40 mm for use with magnetic stirrers. The ellipsoidal shape supports stable spinning and effective bulk mixing in larger vessels compared with shorter bars, aiding dissolution, suspension and homogeneous sample preparation. PTFE coating gives a chemically resistant outer surface that reduces vessel abrasion and withstands contact with many common laboratory reagents during everyday stirring. Clear diameter and length data simplify matching the bar to flask size and magnetic drive performance in research, teaching and routine analytical labs. Applications include general mixing, buffer preparation and controlled agitation within standard laboratory appliance setups. The piece has a listed weight of 0,032 kg, making it straightforward to inventory alongside other magnetic stirrer accessories without altering the stated mechanical and coating specifications.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack sizes: 1 pc, 10 pc(s)
- Product type: Ellipsoidal magnetic stirring rod
- Brand: Rotilabo®
- Coating: PTFE-coated
- Diameter: 20 mm
- Length: 40 mm
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Questions about Rotilabo®-ellipsoidal magn. stirr. rods, PTFE-coated, Ø 20 mm, length 40 mm
What is this article?
Rotilabo®-ellipsoidal magn. stirr. rods, PTFE-coated, Ø 20 mm, length 40 mm is the article on this page. Luminix Health distributes Carl Roth 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?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.