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Stirrers are used ubiquitously in laboratories for simple mixing procedures with solutions of varying viscosities and heating needs. Hotplate varieties bring solutions up to heat quickly and efficiently, and powerful magnets in automatic stirrers deliver reliably consistent performance for all samples. Stirring rods and powered stirring units are all built of durable materials and deliver long-lasting performance under regular or continuous use. Surfaces are easy to clean for low maintenance concerns.

Stirrer Bearings, glass

Stirrer Bearings, glass

Supplier: Bohlender

Combination of borosilicate glass piece with ground joint, an interior PTFE shaft guide with integrated special gasket and a GL screw cap made
of polyphenylene sulphide.

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Magnetic hotplate stirrers, Corning®

Magnetic hotplate stirrers, Corning®

Supplier: Corning

These hot plate stirrers have a durable glass-ceramic Pyroceram® top and offer efficient performance and reliability in a low profile, space-saving design.

    
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Multi-position magnetic stirrers, Variomag Poly 15

Multi-position magnetic stirrers, Variomag Poly 15

Supplier: THERMO H + P LABORTECHNIK

Multi-position stirrers with direct control for up to 15 vessels, are ideal for general laboratory and mass screening applications. Units provide smooth stirring even at low speeds and are suitable for use with 15×250 ml beakers or 6×1 litre flasks.

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Magnetic stirring bars, PTFE, cross-shaped

Magnetic stirring bars, PTFE, cross-shaped

Supplier: Brand

These cross shaped PTFE magnetic stirring bars provide a steady spinning position which brings excellent stirring action.

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Magnetic stirring bars, PTFE, star-shaped, Spinstar®

Magnetic stirring bars, PTFE, star-shaped, Spinstar®

Supplier: Brand

Triangular shaped PTFE magnetic stirring bars.

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Magnetic stirring bars, polygon, Spinbar®, SP Bel-Art

Magnetic stirring bars, polygon, Spinbar®, SP Bel-Art

Supplier: Bel-Art Products, a Part of SP

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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Magnetic stirring bars, disposable, cylindrical, Spinbar®, SP Bel-Art

Magnetic stirring bars, disposable, cylindrical, Spinbar®, SP Bel-Art

Supplier: Bel-Art Products, a Part of SP

Spinbar® magnetic stirring bars with Alnico V magnet encapsulated in FDA grade with PTFE. The multifaceted stirring bar surface adds turbulence relative to similar size smooth cylindrical stirring bars.

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Magnetic stirring bars, PTFE, octagonal, Spinbar®, SP Bel-Art

Magnetic stirring bars, PTFE, octagonal, Spinbar®, SP Bel-Art

Supplier: Bel-Art Products, a Part of SP

Resin coated PTFE octagonal shaped magnetic stirring bars.

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Magnetic stirring bars, PTFE, tandem, BOLA

Magnetic stirring bars, PTFE, tandem, BOLA

Supplier: Bohlender

Tandem shaped magnetic stirrer bars with magnetic core of Alnico 5 encapsulated in PTFE. The centre bore structure is used for receiving bearing neck or a glass neck. In these stirrer bars reduction of running surface to a ring minimises friction and increases lifespan.

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Magnetic stirring bars, PTFE coated, ball shaped

Magnetic stirring bars, PTFE coated, ball shaped

Supplier: KARTELL

Magnetic stirrers which are ideal for test tubes or for eccentric stirring movements.

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Magnetic stirring bars, centred, PTFE-encapsulated, BOLA

Magnetic stirring bars, centred, PTFE-encapsulated, BOLA

Supplier: Bohlender

PTFE-encapsulated magnetic core (Alnico 5), conically tapered ends.

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DrySyn® heating blocks, DrySyn® Vortex

DrySyn® heating blocks, DrySyn® Vortex

Supplier: ASYNT

For overhead stirring of three reactions using only one overhead stirrer.

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Magnetic stirring bars, PTFE, cylindrical

Magnetic stirring bars, PTFE, cylindrical

Supplier: Brand

PTFE-coated cylindrical magnetic stirring bars.

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Magnetic stirring bars, PTFE, octagonal, assorted, Spinpak®, SP Bel-Art

Magnetic stirring bars, PTFE, octagonal, assorted, Spinpak®, SP Bel-Art

Supplier: Bel-Art Products, a Part of SP

Eight-sided Spinbar® octagonal magnetic stirring bars provide greater surface area and added turbulence when compared to smooth cylindrical bars.

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Magnetic stirring bars, PTFE, star-shaped, Spinstar®, SP Bel-Art

Magnetic stirring bars, PTFE, star-shaped, Spinstar®, SP Bel-Art

Supplier: Bel-Art Products, a Part of SP

Spinstar® star-shaped stirring bars creates a deep vortex at relatively slow speeds. Bars are an exact fit for the inside diameter of the beaker indicated.

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Magnetic stirring bars, cylindrical, PTFE, Spinbar®, SP Bel-Art

Magnetic stirring bars, cylindrical, PTFE, Spinbar®, SP Bel-Art

Supplier: Bel-Art Products, a Part of SP

Stirring bars ensure centering and smooth running characteristics via a small removable pivot ring in the center. The pivot ring minimises the contact area of the bar to the vessel, reduces friction and lessens marring of plastic containers.

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Magnetic stirring bars, PTFE, for spectrophotometer cells or cuvettes, Spinbar®, SP Bel-Art

Magnetic stirring bars, PTFE, for spectrophotometer cells or cuvettes, Spinbar®, SP Bel-Art

Supplier: Bel-Art Products, a Part of SP

This magnetic stirring bar, with Alnico magnet encapsulated in PTFE coating, fits into the standard 10 mm light path cuvette and provides rapid vertical and horizontal mixing with a minimum of vortexing when placed on a magnetic stirring machine.

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Magnetic stirring bars, octagonal, rare earth, PTFE, Spinbar®, SP Bel-Art

Magnetic stirring bars, octagonal, rare earth, PTFE, Spinbar®, SP Bel-Art

Supplier: Bel-Art Products, a Part of SP

PTFE covered samarium cobalt magnet provides strong coupling with drive magnets making it ideal for use with viscous solutions and efficient, high speed stirring. The fluted octagonal shape creates torque transmission rates to the stirred liquid which are two to three fold higher compared to similarly sized standard stirring bars.

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Magnetic stirring bars, power, PTFE, BOLA

Magnetic stirring bars, power, PTFE, BOLA

Supplier: Bohlender

Magnetic stirrer bars with magnetic core of samarium-cobalt encapsulated in PTFE. Torque loads transmitted with these stirring bars are four times larger than conventional magnetic stirring bars.

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Magnetic Stirring Bars

Supplier: KARTELL

Economical stirring bars designed for a wide variety of applications.

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Magnetic stirring bars, PTFE, double-ended, BOLA

Magnetic stirring bars, PTFE, double-ended, BOLA

Supplier: Bohlender

Double end shaped PTFE magnetic stirrer bars with magnetic core of Alnico 5 encapsulated in PTFE. Stable discs present at both sides provide an excellent stirring capability.

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Magnetic stirring bars, PTFE coated, cylindrical

Magnetic stirring bars, PTFE coated, cylindrical

Supplier: KARTELL

PTFE coated, cylindrical.

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Magnetic stirring bars, PTFE, oval

Magnetic stirring bars, PTFE, oval

Supplier: KARTELL

These oval shaped PTFE stirring bars are ideal for containers or bottles with round bottom.

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Magnetic stirring bars,double-ended, PTFE-coated

Magnetic stirring bars,double-ended, PTFE-coated

Supplier: KARTELL

Double ended magnetic stirring bars provide excellent centering, limited contact surface and high turbulence even at low speeds.

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Magnetic stirring bars, PTFE, elliptical, Spinbar®, SP Bel-Art

Magnetic stirring bars, PTFE, elliptical, Spinbar®, SP Bel-Art

Supplier: Bel-Art Products, a Part of SP

These PTFE covered egg-shaped magnetic stirring bars have their own pivot point without a separate ring or abrupt change in contour. Designed especially for use in round-bottom vessels, they spin unrestricted by the contours of the vessel.

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Magnetic stirring bars, PTFE, oval

Magnetic stirring bars, PTFE, oval

Supplier: Brand

These oval shaped PTFE magnetic stirrer bars are ideal for vessels with round bottom such as round bottom flasks.

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Magnetic stirring bars, cylindrical

Magnetic stirring bars, cylindrical

Supplier: SEMADENI

Magnetic stirrer bars with permanent magnetic core and white PTFE coating.

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Magnetic Stirring Bars, PTFE, cylindrical, with pivot ring, BOLA

Magnetic Stirring Bars, PTFE, cylindrical, with pivot ring, BOLA

Supplier: Bohlender

PTFE coated stirring bars. Provide excellent centering and smooth stirring.

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Magnetic stirring bars, PTFE, octagonal, with pivot ring, Spinbar®, SP Bel-Art

Magnetic stirring bars, PTFE, octagonal, with pivot ring, Spinbar®, SP Bel-Art

Supplier: Bel-Art Products, a Part of SP

PTFE encapsulated octagonal magnetic stirring bars with integral pivot ring are the most commonly used shape. Their interrupted profile provides greater surface area and added turbulence when compared to the smooth surface of cylindrical bars.

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Magnetic stirring bars, PTFE, Spinfin®, SP Bel-Art

Magnetic stirring bars, PTFE, Spinfin®, SP Bel-Art

Supplier: Bel-Art Products, a Part of SP

Spinfin® magnetic stirring bars agitate liquids in round bottom vessels such as test tubes, cylinders and flasks where other stirring bars cannot be used. Bars maintain their position in a vessel and will not wobble.

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