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® Spinvane®, Magnetic stirring bars
Supplier: VWR Collection
PTFE covered, Alnico V magnetic core. Spinvane® Triangle shaped magnetic stirring bars are designed for stirring in test tubes, centrifuge tubes and micro vials.
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VWR®, Magnetic stirring bars, elliptical
Supplier: VWR Collection
PTFE covered elliptical magnetic stirring bars, except the three smallest sizes which have a cylindrical magnet in an egg-shaped PTFE coating. These elliptical stirring bars, designed especially for use in round-bottom vessels, spin unrestricted by the vessel contour. Autoclavable.
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VWR® Spinbar®, Magnetic stirring bars, micro
Supplier: VWR Collection
Mainly designed for stirring small volumes in vessels such as vials, tubes and gradient makers.
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VWR®Spinplus®, Magnetic stirring bars
Supplier: VWR Collection
These magnetic stirring bars add speed and efficiency to mixing operations. The '+' shape creates a deep vortex and ensures stable and quiet operation.
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VWR® Spinbar® Pyrex®, Magnetic stirring bars, round, glass
Supplier: VWR Collection
These glass encapsulated Alnico magnet stirring bars are useful for high temperature applications up to 274 °C.
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VWR® Spinwedge®, Magnetic stirring bar
Supplier: VWR Collection
These 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®, Magnetic stirring bars, cylindrical
Supplier: VWR Collection
Magnetic stirring bars with low friction PTFE coating and magnetic core (Alnico 5). Cylindrical magnetic stirring bars offer excellent centering and smooth running characteristics.
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VWR®, Magnetic stirring bars, glass-covered
Supplier: VWR Collection
Cylindrical, with Alnico V magnetic core.
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VWR® Spinbar®, Magnetic stirring bars, octagon
Supplier: VWR Collection
Resin-coated PTFE octagonal shaped magnetic stirring bars.
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VWR® Spinbar®, Magnetic stirring bars, PTFE, large cylindrical
Supplier: VWR Collection
Heavy duty PTFE coated stirring bar which is ideal for stirring large volumes of fluid in vessels on large magnetic stirrers or other large equipment.
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VWR®, Magnetic stirring bars, cylindrical
Supplier: VWR Collection
PTFE covered, strong Alnico V magnetic core. Rounded, smooth surface.
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VWR®, Magnetic stirring bars, plain
Supplier: VWR Collection
PTFE covered, strong Alnico V magnetic core. Smooth surface with rounded edges that intensify the stirring effect, even at low speeds.
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VWR®, Magnetic stirring bars, micro
Supplier: VWR Collection
PTFE coated, strong Alnico V magnetic core. Round, smooth surface. For use in the smallest containers.
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VWR®, Magnetic Stirring Bars, Plain, Economy
Supplier: VWR Collection
PTFE covered, strong Alnico V magnetic core. Smooth surface with rounded edges which enhance agitation effect even at low speeds. Inexpensive, high performance.
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VWR®, Magnetic stirring bars, oval
Supplier: VWR Collection
PTFE covered, Alnico V magnetic core. Smooth surface. Designed for use in round bottomed flasks.
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VWR®, Magnetic stirring bars, triangular
Supplier: VWR Collection
PTFE covered, strong Alnico V magnetic core. Smooth surface. Particularly effective for dissolving solids and mixing sediments because of the scraper-like action on the base of the container.
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VWR®Spinbar®, Magnetic stirring bars, disposable
Supplier: VWR Collection
The multifaceted stirring bar surface adds turbulence relative to similar size smooth cylindrical stirring bars.
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VWR® Spinbar®, Magnetic stirring bars, polygonal
Supplier: VWR Collection
PTFE covered with strong Alnico V magnetic core. The multifaceted surfaces add turbulence relative to smooth cylindrical bars of a similar size.
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VWR® Spinbar®, Magnetic stirring bars, octagon, with pivot ring
Supplier: VWR Collection
Octagonal shaped magnetic stirring bars have an interrupted profile which provides greater surface area and added turbulence when compared to the smooth surface of cylindrical bars.
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VWR®, Magnetic Stirring Bars, Cross-Shaped
Supplier: VWR Collection
PTFE covered, strong Alnico V magnetic core. Smooth surface. Stable rotating position for optimal stirring effect.
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VWR®, Magnetic stirring bars, rectangular
Supplier: VWR Collection
PTFE covered, strong Alnico V magnetic core. Smooth surface. Very effective stirrers, especially at low speeds.
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VWR®, Magnetic stirring bars, cylindrical, with removable pivot ring
Supplier: VWR Collection
PTFE covered, strong Alnico V magnetic core. Smooth surface. For containers with slightly uneven bases.
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VWR®, Magnetic stirring bars, cylindrical, with centre ring
Supplier: VWR Collection
PTFE covered, strong Alnico V magnetic core. Smooth surface. For containers with slightly uneven bases.
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VWR®, Magnetic Stirring Bars, Elliptical, Rare Earth
Supplier: VWR Collection
PTFE covered, rare earth magnetic core. The magnetic core is made from a combination of samarium and cobalt. The stirrers will continue to function at full strength for many years as the magnetism remains for longer. They are identified by an inert carbon black spot.
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VWR®, Magnetic stirring bars, double ended
Supplier: VWR Collection
PTFE covered, strong Alnico V magnetic core. Smooth surface. Very good centring, small footprint and high turbulence even at low speeds. Disc diameter 20 mm, rod diameter 8 mm.
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VWR®Spinbar®, Magnetic stirring bars, with pivot ring, giant polygon
Supplier: VWR Collection
Designed for stirring large volumes in vessels such as drums and tanks.
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VWR®, Magnetic Stirring Bars, Octagonal, With Pivot Ring
Supplier: VWR Collection
PTFE covered, strong Alnico V magnetic core. Smooth surface. For use in containers with bases that are slightly uneven or curved.
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VWR® Spinbar®, Stir bars, octagon, assortment
Supplier: VWR Collection
Assortment of 16× PTFE resin-coated, octagon-shaped magnetic stirring bars with pivot ring.
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VWR® Spinbar®, Magnetic stir bars, octagon, colour-coded
Supplier: VWR Collection
Colour-coded octagonal bars provide a greater surface area and added turbulence compared to the smooth surface of cylindrical bars.
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VWR® Magnetic Stirrers, Boxed Sets
Supplier: VWR Collection
Set Octahedral 1, PTFE covered, 12 octagonal magnetic stirring rods with centre ring, in practical, transparent box. Set includes two stirrers with each of following dimensions, L×Ø (mm): 13×8, 15×8, 25×10, 38×10, 51×10 and 64×10.
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