--- product_id: 262547000 title: "White Magnetic Mixer Stirrer Bar" brand: "weewooday" price: "$17.27" currency: USD in_stock: true reviews_count: 13 category: "Weewooday" url: https://www.desertcart.us/products/262547000-white-magnetic-mixer-stirrer-bar store_origin: US region: United States of America --- # Heat-resistant PTFE withstands high temps Strong magnetic force for stable stirring Smooth cylindrical design reduces friction White Magnetic Mixer Stirrer Bar **Brand:** weewooday **Price:** $17.27 **Availability:** ✅ In Stock ## Summary > 🧪 Stir Smarter, Not Harder: Elevate Your Lab Game with Weewooday! ## Quick Answers - **What is this?** White Magnetic Mixer Stirrer Bar by weewooday - **How much does it cost?** $17.27 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/262547000-white-magnetic-mixer-stirrer-bar) ## Best For - weewooday enthusiasts ## Why This Product - Trusted weewooday brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Lab-Ready Multi-Pack:** Four 30mm bars included—perfect for scaling experiments or backup reliability - • **Universal Compatibility:** Fits seamlessly with most magnetic and heating stirrers for versatile lab use - • **Precision Magnetic Power:** Engineered for stable, no-slip stirring even at high speeds - • **Optimized Smooth Rotation:** Cylindrical shape and polished surface minimize friction for flawless mixing - • **Heat & Corrosion Resilience:** PTFE coating resists abrasion, corrosion, and temperatures—built to last ## Overview The Weewooday 4 Pieces PTFE Magnetic Mixer Stirrer Bars are precision-engineered cylindrical magnets coated with durable, heat-resistant PTFE. Each 30mm bar offers strong magnetic force and smooth rotation, ensuring efficient mixing in various lab settings. Designed for compatibility with most magnetic and heating stirrers, these bars resist corrosion and abrasion, making them a reliable choice for scientific research, industrial, and educational applications. ## Description Product description The stir bar is magnetic, and its two ends have opposite polarities. Compact size allows you to put it in most measuring cups. High lubrication and lowest coefficient of friction in solid material. Instructions Place the magnetic stirrer bar in a beaker, graduated cylinder or other container. Place the container on the platform of the electromagnetic heating stirrer, and then turn on the switch of the electromagnetic heating stirrer. The magnetic stirrer will generate rotational force to drive the substance to rotate quickly. In this way, the substance is completely mixed, and the substance can be concentrated by heating. Review: Stirs 32oz Liquid Culture easy peasy. - They are large enough to stir 32oz LCs on low to medium. They also work with smaller jars (1pint). They are strongly magnetic and the coating holds up to daily stirring. I havent had any issues with Sterilizing them or the coating pitting. They work well with my basic small stir plate. Review: So far, So good - Works well. I'm not experiencing problems like some other users. No splitting, or uneven spinning. ## Features - Features: magnetic stir bar can resist high temperatures, corrosion, abrasion and high rotational forces, and has the properties of fine workmanship, no impurities and burrs on the surface, stable speed and no deviation - Quality material: PTFE magnetic stirrer is made of PTFE and quality magnetic steel, and the cylindrical shape and smooth surface will reduce friction and improve smooth rotation - More other applications: laboratory bar is widely applied in scientific research, universities, laboratories in the industrial and agricultural sectors, and also can be applied to stir mixed substances - Widely applicable: stir plate magnet bar will work well with various types of magnetic stirrers or heating stirrers - Package includes: comes with PTFE magnetic stir bars in our package, all of them are 30 mm/ 1.18 inch ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08P3JKLSJ | | Best Sellers Rank | #4,240 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Lab Stirrers | | Brand | Weewooday | | Brand Name | Weewooday | | Color | white | | Customer Reviews | 4.8 out of 5 stars 1,671 Reviews | | Item Dimensions L x W x Thickness | 0.31"W x 0.31"Th | | Item Thickness | 0.31 Inches | | Manufacturer | Weewooday | | Material | Polytetrafluoroethylene | | Material Type | Polytetrafluoroethylene | | Model Number | Weewooday-PTFE Magnetic Stirrer-01 | | Number of Pieces | 4 | | Part Number | Weewooday-PTFE Magnetic Stirrer-01 | | Product Dimensions | 0.31"W x 0.31"Th | | Shape | Cylindrical | | Unit Count | 4 Count | ## Product Details - **Brand:** Weewooday - **Color:** white - **Material:** Polytetrafluoroethylene - **Product Dimensions:** 0.31"W x 0.31"Th - **Shape:** Cylindrical ## Images ![White Magnetic Mixer Stirrer Bar - Image 1](https://m.media-amazon.com/images/I/615ISE5vPFL.jpg) ## Available Options This product comes in different **Size, Number Of Items** options. ## Questions & Answers **Q: Can these be autoclaved?** A: I would have to assume so. They’re scientific instruments. Generally, with a few exceptions, there designed to be regularly sterilized. I regularly send mine through a pressure cooker at 15 PSI in liquid cultures **Q: Could these be used with a sensor for an alarm system (Simplisafe)? I have double hung windows so need a slim magnet to put opposite the sensor. Thx** A: Probably, but I suspect it would be much easier to use one of these that's the size you want: https://www.amazon.com/s?k=neodymium+disc+magnets&crid=3RBE9SKKGYW9W&sprefix=Neodyn%2Caps%2C235&ref=nb_sb_ss_ts-doa-p_5_6 **Q: is there any possibilities that these could degrade and leak into the water? any easy way to see it? thanks** A: There is nothing to leak. Inside is a solid magnet. It's possible that after using them a long time, friction could wear out the plastic coating, but that will probably take years and you'll see it slowly degrading. Just take a quick glance before you use them and if they look like they are in good condition, they are. **Q: Is there a "flat" side of the magnet, or are both sides curved?** A: Both sides are curved. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Stirs 32oz Liquid Culture easy peasy. *by J***T on May 13, 2026* They are large enough to stir 32oz LCs on low to medium. They also work with smaller jars (1pint). They are strongly magnetic and the coating holds up to daily stirring. I havent had any issues with Sterilizing them or the coating pitting. They work well with my basic small stir plate. ### ⭐⭐⭐⭐⭐ So far, So good *by A***E on April 30, 2026* Works well. I'm not experiencing problems like some other users. No splitting, or uneven spinning. ### ⭐⭐⭐⭐⭐ Reliable and Efficient: PTFE Magnetic Stirrer Mixer Stir Bars *by K***H on May 26, 2024* The PTFE Magnetic Stirrer Mixer Stir Bars have been an excellent addition to my laboratory equipment. The set includes eight pieces, each 35 mm (1.38 inches) in length, which is perfect for various stirring needs. These stir bars are incredibly reliable and efficient. The PTFE coating ensures they are chemically resistant and easy to clean, which is crucial for maintaining the integrity of my experiments. They work seamlessly with my stir plate, providing consistent and smooth stirring every time. The white color makes them easy to spot in different solutions, and their size is ideal for most standard lab containers. Overall, I am very impressed with the quality and performance of these stir bars. They are a must-have for any laboratory looking for dependable and durable stirring tools. Highly recommended! --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/262547000-white-magnetic-mixer-stirrer-bar](https://www.desertcart.us/products/262547000-white-magnetic-mixer-stirrer-bar) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-17*