Description
Magnetic stirring bar with ring 9 x 70 mm is a cylindrical laboratory stir bar finished in polytetrafluoroethylene (PTFE) and fitted with a central ring for stable rotation on magnetic stirrers. Outer diameter is 9 mm and length is 70 mm, giving a classic round-rod geometry suited to beakers, flasks and similar vessels. The PTFE encapsulation offers the chemical inertness expected for routine aqueous and organic media handling in research, analytical and quality-control laboratories. Supplied in a pack of 10 pc(s), the bars support parallel setups and continuous daily use without frequent reordering. The integrated middle ring assists positional stability during mixing of buffers, reagents and sample solutions. These stirring bars from manufacturer Witeg combine a compact cylindrical profile with reliable magnetic coupling for dissolution, homogenisation and gentle agitation tasks. The smooth PTFE surface is easy to rinse between runs and resists adhesion of many common laboratory residues. Net weight is 0,02 kg. Ideal where a ringed cylindrical stir bar of defined 9 mm by 70 mm dimensions is specified for standard magnetic stirring workstations.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 10 pc(s)
- Material: Polytetrafluoroethylene (PTFE)
- Diameter: 9 mm
- Length: 70 mm
- Shape: Cylindrical with ring
- Centre ring: Yes
- Technical Information Sheet:
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Questions about Magnetic stirring bar with ring 9x70mm
What is this article?
Magnetic stirring bar with ring 9x70mm 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. 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.
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.