{"product_id":"vwr-standard-high-volume-stirrer-25-l-11-x-12-5-in-large-capacity","title":"VWR Standard High Volume Stirrer 25 L 11 x 12.5 in. Large Capacity","description":"\u003ch3\u003eVWR Standard High-Volume Magnetic Stirrer (12621-050) – 25 L Large Capacity, 11 x 12.5 in. Top Plate\u003c\/h3\u003e\n\u003cp\u003eThe VWR 12621-050 is a heavy-duty, high-capacity magnetic stirrer engineered for large-scale laboratory and pilot-plant fluid mixing. With a massive stirring capacity of up to 25 liters, this robust instrument easily handles high-volume chemical preparations, media dissolution, and viscous pilot-scale blending. Its oversized 11 x 12.5-inch cast aluminum top plate provides a stable, corrosion-resistant platform for heavy carboys, flasks, and storage vessels, ensuring smooth, continuous coupling between the drive magnet and the stir bar.\u003c\/p\u003e\n\u003ch3\u003eTechnical Performance \u0026amp; Design\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-Volume Magnetic Drive: Equipped with a powerful internal motor and a high-torque drive magnet designed to maintain strong coupling with large magnetic stir bars, preventing spin-outs in solutions up to 25 L.\u003c\/li\u003e\n\u003cli\u003eDurable Cast Aluminum Top Plate: The **11 x 12.5-inch (279 x 318 mm)** platform features a heavy-duty cast aluminum construction that ensures even weight distribution, structural rigidity, and resistance to impact.\u003c\/li\u003e\n\u003cli\u003eContinuous Electronic Speed Control: Utilizing a micro-chip velocity dial, the stirrer provides smooth, repeatable speed ramping from low-speed agitation up to high-vortex mixing, minimizing splashing and sample shearing.\u003c\/li\u003e\n\u003cli\u003eLow-Profile, Rugged Chassis: Built with a low center of gravity to prevent walking or tipping under heavy loads, featuring a cast-metal housing that protects internal electronics from accidental spills.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: 12621-050\u003c\/li\u003e\n\u003cli\u003eMaximum Stirring Capacity: 25 Liters (approx. 6.6 gallons) H2O\u003c\/li\u003e\n\u003cli\u003eSpeed Range: 60 to 1400 RPM (dependent on fluid viscosity and bar geometry)\u003c\/li\u003e\n\u003cli\u003eTop Plate Dimensions: 11 x 12.5 inches (279 x 318 mm)\u003c\/li\u003e\n\u003cli\u003ePlate Material: Cast Aluminum\u003c\/li\u003e\n\u003cli\u003ePower Requirements: 120V, 50\/60Hz, Standard Grounded Laboratory Plug\u003c\/li\u003e\n\u003cli\u003eWeight Capacity: Rated for up to 50 lbs (22.7 kg) of static top load\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Benefits \u0026amp; Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLarge-Scale Buffer \u0026amp; Media Prep: An essential tool for **bioprocessing and pilot laboratories** where large volumes of cell culture media, buffers, and reagents must be thoroughly homogenized.\u003c\/li\u003e\n\u003cli\u003eHigh-Viscosity Mixing Tasks: Ideal for processing dense polymer solutions, chemical slurries, and cosmetics formulations that would stall standard benchtop magnetic stirrers.\u003c\/li\u003e\n\u003cli\u003eIndustrial Carboy Blending: The broad platform effortlessly accommodates **5-gallon Nalgene® or Pyrex® carboys**, allowing for direct, closed-container mixing to prevent ambient contamination.\u003c\/li\u003e\n\u003cli\u003eContinuous Duty Engineering: Formulated with a cool-running motor design that eliminates heat transfer to the sample platter, protecting thermosensitive biological agents during long-term or overnight runs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003csmall\u003eVWR® and its logos are registered trademarks of VWR International, LLC. For optimal high-volume performance, the use of large, specialized magnetic stir bars (e.g., egg-shaped or Alnico-V rare earth bars) is highly recommended.\u003c\/small\u003e\u003c\/p\u003e","brand":"VWR","offers":[{"title":"Default Title","offer_id":49135637168380,"sku":"10737","price":522.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/8463\/5132\/files\/vwr-standard-high-volume-stirrer-25-l-11-x-125-in-large-capacity-magnetic-stirrers-hotplate-stirrers-vwr-762686.jpg?v=1779818641","url":"https:\/\/lifesciencestrading.com\/es\/products\/vwr-standard-high-volume-stirrer-25-l-11-x-12-5-in-large-capacity","provider":"Life Sciences Trading","version":"1.0","type":"link"}