Description
Magnetic stirring bar 45×8 mm is a cylindrical PTFE-coated stir bar for controlled mixing of liquids on laboratory magnetic stirrers. It measures 45 mm in length and 8 mm in diameter and features a round rod profile with smooth surfaces and no centre ring, allowing free rotation in flasks, beakers and process vessels. The magnetic core is fully enclosed in polytetrafluoroethylene (PTFE), providing broad chemical resistance and easy wipe-down after aqueous or organic work. Supplied in packs of 10 pieces, the bars are convenient for multi-user benches and parallel stirring setups. Offered by manufacturer Marienfeld, this format supports dissolution, reagent blending, buffer preparation and general sample agitation in chemical, biochemical and analytical laboratories. The 45 mm length couples reliably to standard drive magnets in small to medium vessel volumes while the uninterrupted cylindrical shape promotes quiet, stable spinning. Smooth PTFE surfaces help limit residue adhesion and maintain consistent performance over repeated cycles. Laboratories that need a durable cylindrical stirring bar without a pivot ring will find this 45×8 mm size a practical everyday option.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 10 pc(s)
- Product type: Magnetic stirring bar
- Length: 45 mm
- Diameter: 8 mm
- Shape: Round rod, smooth surfaces
- EAN: 4250317314895
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Magnetic stirring bars 45x8 mm,
What is this article?
Magnetic stirring bars 45x8 mm, is the article on this page. Luminix Health distributes Marienfeld 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.