Stir Bars

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  • Micro (Flea) magnetic stirring bars are designed for stirring small volumes in vessels such as vials, tubes and gradient makers. Particularly useful for environmental testing and life science applications in which small sample volumes need to be prepared and evaluated Alnico magnet…

  • Magnetic Stirring Bar External Retriever

    Bel-Art - SP Scienceware

    The retriever is placed against the vessel wall where the stirbar is located. Slide the retriever up along the vessel wall, and the stirring bar follows along the inside wall of the vessel up to a point where you can manually pick it up. The oblong section 25x70mm (1" x 2-3/4") houses the…

  • These stir bars have polygon multifaceted surfaces that add turbulence relative to similar smooth size cylindrical bars. Alnico magnet encapsulated in FDA Grade, USP Class VI Teflon® PTFE low friction coating; durable and inert Manufactured in a registered ISO 9001:2008 facility, as…

  • Octagon Spinbar® Magnetic Stir Bars

    Bel-Art - SP Scienceware

    Octagon magnetic stirring bars with integral pivot ring are the most commonly used shape. Alnico magnet encapsulated in FDA Grade, USP Class VI Teflon® PTFE low friction coating; durable and inert Interrupted profile provides greater surface area and added turbulence when compared to…

  • Pivot Ring Stir Bars

    Globe Scientific

    Produced from PTFE Central pivot ring ensures efficient spinning, even on curved or uneven bases

  • Stir Bar Micro, 1.5X15 mm ( 1210C97 ) Product Dimensions (l x w x h) : 0.591x0.073x0in 15 mm length. For stirring  test tubes, micro-beakers, etc... Covered with polytetrafluoroethylene white resin. Stir Bar Micro, 1.5X8 mm ( 1210C98 ) Product Dimensions (l x w x h) :…

  • These stirbar assortments come in a convenient storage box and provide instant availability of these highly popular Teflon® PTFE encapsulated Alnico magnets. Choose from Octagon, Cylindrical, Polygon, Micro, Egg-Shaped or Spinplus® shaped assortments FDA Grade, USP Class VI…

  • Our stir bars feature ALNICO V magnetic cores which are one of the most powerful permanent magnet alloys available. Stir bars should not be stored in a random mass, or dropped on a hard surface especially steel. Stir bars should be stored in pairs to maintain magnetic strength.

  • Micro Stir Bars

    Globe Scientific

    Produced from PTFE For use in small vessels, e.g. test tubes, vials, etc.

  • Stirring Rods

    Globe Scientific

    Suitable for stirring even the most corrosive liquids Will withstand 260°C PTFE covered with plain ends 6mm diameter

  • Cylindrical Stir Bars

    Globe Scientific

    Produced from PTFE For the stirring of liquids on magnetic stirrers and/or hotplate stirrers Strong alloy magnets sheathed in pure white inert PTFE Supplied in polarity aligned packs to ensure maximum coupling strength Resistant to virtually all chemical attack and temperatures up to 260°C

  • Oval Stir Bars

    Globe Scientific

    Produced from PTFE For efficient stirring in round bottomed flasks

  • Micro Stir Bars


    Micro Color-Coded Stirring Bars come in 3 different colors (red, yellow and blue) and various Polytetrafluoroethylene lengths. Colored stir bars may leach in harsh chemicals.

  • Cylindrical magnetic stirring bars offer excellent centering and smooth running characteristics. Small removable pivot ring in the center adds to their versatility Pivot ring minimizes the contact area of the bar to the vessel, reduces friction and lessens marring of plastic containers …

  • Stir Bars, Egg Shapped, Blunt Edges

    United Scientific Supplies

    High quality egg shaped (blunt edges) stir bar, teflon coated magnet.

  • Stir Bar Set

    Globe Scientific

    Useful assortment of the most popular types and sizes of PTFE magnetic stirrer bars Supplied in a red polypropylene compartmented box with opaque natural lid Contains: Pivot ring: two each of 12 x 4.5, 25 x 6, 45 x 8 and 60 x 9.5mm Oval: two each of 20 x 10, 25 x 12, 35 x 16…

  • These Corning magnetic stir bars are Teflon®-coated for increased chemical-resistance. Bars are available in 2” x 3/8” in. (5.08 x 0.95 cm) or 1” x 3/8” in. (2.54 x 0.95 cm).  1233W94 stir bars are suitable for use with PC610/620 stirrers while 1233W95 stir bars are for…

  • These egg-shaped stirring bars are designed especially for use in round-bottom vessels as they spin unrestricted by the vessel contour. Particularly well suited for round bottom flasks; shape ensures complete mixing Offers minimal contact when used in plastic containers Egg shape…

  • Scienceware® Positioner-Retriever, PE

    Bel-Art - SP Scienceware

    Set the Spinbar® Magnetic Stirring Bar precisely where it is wanted with no splash using the Spinbar® Positioner/Retriever. Just as easily, retrieve stirbars without coming into contact with the liquid in the container. For recovering a Spinbar® Magnetic Stirring Bar, keep the…

  • Spinstar® Magnetic Stirring Bars

    Bel-Art - SP Scienceware

    Spinstar® magnetic stirring bars create a deep mixing vortex at relatively slow speeds. Star shape is designed to fit the inside diameter of most commonly-used beakers Perfect for applications requiring slow, thorough mixing Alnico magnet encapsulated in FDA Grade, USP Class VI…

  • Spinplus® Magnetic Stirring Bars

    Bel-Art - SP Scienceware

    Spinplus® magnetic stirring bars add speed and efficiency to mixing operations. The "+" shape creates a deep vortex and provides stable, quiet operation Alnico magnet encapsulated in FDA Grade, USP Class VI Teflon® PTFE low friction coating; durable and inert …

  • Stir Bar Retrievers

    Globe Scientific

    Magnet permanently embedded in PTFE rod Ideal for retrieving magnetic stirrer bars from particularly sensitive or corrosive liquids

  • Large to Small Volumes, the Spinpak® Assortment has You Covered A 10-pack of the most commonly used Spinbar® Octagonal Magnetic Stirring Bars in a variety of colors and sizes. Eight-sided Spinbar® Octagonal Magnetic Stirring Bars provide greater surface area and added…

  • Two lengths to fit a wide range of vessels Autoclavable While many magnetic stirring bars are impeded by powders in a liquid, the Saturn Spinbar overcomes this problem. A large bulb in the bars center lifts the stirring bars ends while spinning thereby reducing surface contact area and…

  • Cylindrical magnetic stir bar with pivot ring. various sizes available.

  • Round, PTFE coated stirring bars. RS 1 Set of magnetic stirring bars Consisting of the IKAFLON® and TRIKA® Magnetic stirring bars: IKAFLON® 10 Magnetic stirring bar IKAFLON® 15 Magnetic stirring bar IKAFLON® 20 Magnetic stirring bar IKAFLON® 25…

  • Eliminates sparking hazard Compact unit Stirrer is powered by a low pressure air supply that eliminates the sparking hazard from electrical sources. Compact unit operates using only 3 to 8 psi (21-55 kPa) air pressure and it is useful for stirring vesseals up to 1 liter. Tubing is…

  • Spinfin® Magnetic Stirring Bars

    Bel-Art - SP Scienceware

    Spinfin® magnetic stirring bars agitate liquids in round bottom vessels such as test tubes, cylinders and flasks, where other stirring bars cannot be used. Maintains its position in a vessel and will not wobble Alnico magnet encapsulated in FDA Grade, USP Class VI Teflon® PTFE…

  • Stir Bar Egg-Shaped 3/8X3/4" (1210D76 ) Product Dimensions (l x w x h) : 0.785x0.397x0.4in PTFE 20 mm length   Stir Bar Egg-Shaped 1/2X1" (1210D77 ) Product Dimensions (l x w x h) : 1x0.511x0.515in PTFE 25 mm length Stir Bar…

  • Heavy duty bars for use in stirring large volumes of fluid in vessels on large magnetic stirring machines such as the Cool Stir Large Volume Stirrer, H37028-0001 or other large machines. Will fit into vessels with a minimum neck diameter of 32 mm Multifaceted surface adds turbulence…

  • The multifaceted magnetic stirring bar surface adds turbulence relative to similar size smooth cylindrical stirring bars. Ideal for single use applications mixing radioactive reagents or when cross contamination might be a concern Alnico magnet encapsulated in FDA Grade, USP Class VI…

  • Spinring® Magnetic Stirring Bars

    Bel-Art - SP Scienceware

    Spinring® stirring bars provide maximum stabilization of the magnetic stirring bar with the addition of a removable “hoop” around a standard octagonal bar. Best suited for larger open-neck vessels, such as buckets and beakers Friction fit of the "hoop" and…

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