{"product_id":"heathrow-scientific-octagonal-magnetic-stir-bars","title":"Heathrow Scientific Octagonal Magnetic Stir Bars - 120540 Series | ALNICO Pivot Ring","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eAchieve powerful, consistent mixing in your laboratory with Heathrow Scientific's Octagonal Magnetic Stir Bars. Engineered to handle everything from simple aqueous solutions to highly viscous mixtures, these premium stir bars are driven by an ALNICO core—one of the strongest permanent magnets available. The specialized low-friction octagonal profile, combined with an integrated center pivot ring, creates an aggressive, deep mixing vortex while significantly reducing surface contact to prevent drag.\u003c\/p\u003e\n\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eDurability and sample integrity are paramount when working with aggressive solvents and high temperatures. Each ALNICO magnet is securely encapsulated in a chemically inert, highly resilient PTFE casing using a specialized sintered manufacturing process. This advanced construction prevents dangerous magnetic decoupling (\"spin outs\") at high speeds and ensures the core is fully protected from corrosive chemicals. Fully autoclavable and rated for extreme temperatures up to 250°C, these stir bars seamlessly transition between unheated stirring and high-temperature heated magnetic stir plates.\u003c\/p\u003e\n\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul class=\"marker:text-quiet list-disc\"\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cstrong\u003ePremium ALNICO Core:\u003c\/strong\u003e Powered by an ultra-strong permanent magnet that maintains its strength over time and resists decoupling during high-speed rotation.\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cstrong\u003eOctagonal Pivot Ring Design:\u003c\/strong\u003e The angled edges and raised center ring minimize bottom contact friction while maximizing vortex strength in viscous liquids.\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cstrong\u003eSintered PTFE Encapsulation:\u003c\/strong\u003e The seamless PTFE exterior is chemically inert, non-contaminating, and incredibly easy to clean between experiments.\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cstrong\u003eHigh Thermal Tolerance:\u003c\/strong\u003e Safely withstands continuous operating temperatures up to 250°C, making them ideal for heated stirring applications.\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cstrong\u003eAutoclavable:\u003c\/strong\u003e Can be safely sterilized for biological and sterile media preparation workflows.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv class=\"overflow-x-auto my-4\"\u003e\n  \u003ctable class=\"min-w-full text-left text-sm border-collapse border border-gray-300\"\u003e\n    \u003cthead class=\"bg-gray-100 font-semibold\"\u003e\n      \u003ctr\u003e\n        \u003cth class=\"p-2 border border-gray-300\"\u003eSpecification\u003c\/th\u003e\n        \u003cth class=\"p-2 border border-gray-300\"\u003eDetail\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003eMagnet Core Type\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003eALNICO (Permanent Magnet)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003eExterior Coating\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003ePTFE (Teflon™)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003eShape\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003eOctagonal Cylinder with Center Pivot Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003eMaximum Temperature\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003e250°C (482°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003eSterilization\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003eFully Autoclavable\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003ePackaging\u003c\/td\u003e\n\u003ctd class=\"p-2 border border-gray-300\"\u003ePack of 10\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cem\u003eLabSupplies.com is an authorized distributor of Heathrow Scientific. All magnetic stir bars are sold in bulk packs of 10 and ship directly from our verified USA warehouse.\u003c\/em\u003e\u003c\/p\u003e","brand":"Heathrow Scientific","offers":[{"title":"10 x 5 mm","offer_id":48097071071464,"sku":"120547","price":40.0,"currency_code":"USD","in_stock":true},{"title":"20 x 8 mm","offer_id":48097071104232,"sku":"120548","price":47.0,"currency_code":"USD","in_stock":true},{"title":"25 x 7 mm","offer_id":48097071137000,"sku":"120549","price":58.0,"currency_code":"USD","in_stock":true},{"title":"28 x 8 mm","offer_id":48097071169768,"sku":"120550","price":70.0,"currency_code":"USD","in_stock":true},{"title":"30 x 8 mm","offer_id":48097071202536,"sku":"120551","price":81.0,"currency_code":"USD","in_stock":true},{"title":"35 x 9 mm","offer_id":48097071235304,"sku":"120552","price":93.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/unnamed_b7dfb8f6-2af4-49ad-8bb2-e0c8c8400064.jpg?v=1772593425","url":"https:\/\/labsupplies.com\/products\/heathrow-scientific-octagonal-magnetic-stir-bars","provider":"LabSupplies.com","version":"1.0","type":"link"}