Magnetic Stirring Bars
Magnetic stirring bars provide effective stirring of samples via magnetic manipulation. Many models feature an octagonal shape with a central integrated pivot ring for optimal turbulence while stirring thanks to a greater surface area. Commonly coated in Teflon to provide chemical inertness; occasionally glass will be the coating for use with most liquid alkali metals and alkali metal solutions in ammonia. Both of these coatings are inert and will not contaminate or react with the reaction solution.
VWR® Spinbar® Micro Stir Bars
Supplier: VWR International
Micro (Flea) magnetic stirring bars are designed for stirring small volumes in vessels such as vials, tubes, and gradient makers.
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VWR® Spinbar® Octagon Stir Bars, Color-Coded and Assorted
Supplier: VWR International
An assortment of 24 PTFE resin-coated, magnetic stir bars color-coded in red, yellow, and blue.
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VWR® Spinbar® Polygon Stir Bars, Assorted
Supplier: VWR International
Assortment of 18 PTFE resin-coated, polygon stir bars contained in a plastic, compartmentalized Spinbox™ with indexed cover.
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VWR® Spinwedge® Magnetic Stir Bars
Supplier: VWR International
Spinwedge® magnetic stirring bars provide strong turbulence at fairly low speeds and are well suited for churning sediment or dissolving salts
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VWR® Spinbar® Disposable Stir Bars, Octagon
Supplier: VWR International
The multifaceted stirring bar surface adds turbulence relative to similar size smooth cylindrical stirring bars.
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VWR® Magnetic Stir Bar Retrievers, PTFE
Supplier: VWR International
Molded in pure, FDA-approved PTFE, these retrievers are inert and non-contaminating.
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VWR® Spinbar® Magnetic Stir Bars, Polygon without Pivot Ring
Supplier: VWR International
Polygon-shaped Alnico magnet encapsulated in FDA grade Teflon® PTFE is durable and inert.
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VWR® Spinbar® Micro Stir Bars, Assortment
Supplier: VWR International
Think small with a Spinpak® of six metric, flea-sized, PTFE resin-coated magnetic stir bars.
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VWR® Spinbar® Magnetic Stir Bars, Egg-Shaped
Supplier: VWR International
These egg-shaped stirring bars, designed especially for use in round-bottom vessels, spin unrestricted by the vessel contour.
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Disposable Polygon Spinbar Magnetic Stirring Bars
Supplier: VWR International
The multifaceted magnetic stirring bar surface adds turbulence relative to similar size smooth cylindrical stirring bars.
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VWR® Polygon Spinbar Magnetic Stirring Bars
Supplier: VWR International
These VWR® stirbars have polygon multifaceted surfaces that add turbulence relative to similar smooth size cylindrical bars.
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VWR® Spinplus® Magnetic Stir Bars
Supplier: VWR International
Spinplus® magnetic stirring bars add speed and efficiency to mixing operations.
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VWR® Spinvane® Stir Bars for Test Tubes, Micro Vials, and Conical Bottom Centrifuge Tubes
Supplier: VWR International
Solid Teflon® vane has a cross-mounted, molded-in magnet that can be trimmed to fit if needed without affecting the magnet.
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VWR® Spinbar® Fluted Octagonal Rare Earth Magnetic Stirring Bar
Supplier: VWR International
This bar’s high-energy magnetic material, combined with a fluted octagonal shape, produces exceptional power, although its length is only 50 mm (1.969") with a 21 mm (0.83") diameter.
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VWR® Spinbar® Stir Bars, Octagon, Color-Coded
Supplier: VWR International
Octagon magnetic stirring bars with integral pivot ring are the most commonly used shape
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VWR® Spinbar® Magnetic Stir Bars, Octagon
Supplier: VWR International
Octagon magnetic stirring bars with integral pivot ring are the most commonly used shape.