SWANSOFT
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10 Pcs 10mm/0.39' Magnetic Stirrer Mixer Stir Bar, High Temperature PTFE Magnetic Stir Bar, Laboratory Bar
10 Pcs 10mm/0.39' Magnetic Stirrer Mixer Stir Bar, High Temperature PTFE Magnetic Stir Bar, Laboratory Bar
10 Pcs 10mm/0.39' Magnetic Stirrer Mixer Stir Bar, High Temperature PTFE Magnetic Stir Bar, Laboratory Bar
10 Pcs 10mm/0.39' Magnetic Stirrer Mixer Stir Bar, High Temperature PTFE Magnetic Stir Bar, Laboratory Bar
10 Pcs 10mm/0.39' Magnetic Stirrer Mixer Stir Bar, High Temperature PTFE Magnetic Stir Bar, Laboratory Bar
10 Pcs 10mm/0.39' Magnetic Stirrer Mixer Stir Bar, High Temperature PTFE Magnetic Stir Bar, Laboratory Bar
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10 Pcs 10mm/0.39' Magnetic Stirrer Mixer Stir Bar, High Temperature PTFE Magnetic Stir Bar, Laboratory Bar
10 Pcs 10mm/0.39' Magnetic Stirrer Mixer Stir Bar, High Temperature PTFE Magnetic Stir Bar, Laboratory Bar
10 Pcs 10mm/0.39' Magnetic Stirrer Mixer Stir Bar, High Temperature PTFE Magnetic Stir Bar, Laboratory Bar
10 Pcs 10mm/0.39' Magnetic Stirrer Mixer Stir Bar, High Temperature PTFE Magnetic Stir Bar, Laboratory Bar
10 Pcs 10mm/0.39' Magnetic Stirrer Mixer Stir Bar, High Temperature PTFE Magnetic Stir Bar, Laboratory Bar
10 Pcs 10mm/0.39' Magnetic Stirrer Mixer Stir Bar, High Temperature PTFE Magnetic Stir Bar, Laboratory Bar
Strong, chemically inert PTFE magnetic stir bars with pivot rings for improved rotational stability, widely applicable from scientific research to family usage.
10 Pcs 10mm/0.39' Magnetic Stirrer Mixer Stir Bar, High Temperature PTFE Magnetic Stir Bar, Laboratory Bar
Item #: 45053543

10 Pcs 10mm/0.39' Magnetic Stirrer Mixer Stir Bar, High Temperature PTFE Magnetic Stir Bar, Laboratory Bar

Item #: 45053543
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Strong, chemically inert PTFE magnetic stir bars with pivot rings for improved rotational stability, widely applicable from scientific research to family usage.
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What Stands Out

High Temperature Resistance
These PTFE stir bars withstand high temperatures, making them ideal for demanding laboratory environments, ensuring consistent performance even under extreme conditions.
Magnetic Efficiency
Designed to enhance magnetic interaction, these stir bars provide efficient and uniform mixing, addressing the need for reliable results in complex liquids.
Durable PTFE Material
Crafted from high-quality PTFE, this stir bar offers outstanding chemical resistance, ensuring longevity and reliability in a variety of laboratory settings.

Product Details

Shop 10 Pcs 10mm/0.39' Magnetic Stirrer Mixer Stir Bar, High Temperature PTFE Magnetic Stir Bar, Laboratory Bar online at a best price in Sri Lanka. B09CYKJTCZ
Brand NameSWANSOFT
ManufacturerSwansoft
Unit Count10 Count
Included ComponentsStirrers
Part NumberSW
Item Dimensions L x W x Thickness0.39"L x 0.24"W x 0.39"Th (1 x 0.6 x 1 cm)
Item Thickness0.39 inches (1 cm)
Number of Pieces10
Material TypePolytetrafluoroethylene
ColorWhite
ShapeCylindrical
MaterialPolytetrafluoroethylene
BrandSWANSOFT
Product Dimensions (L x W x H)0.39"L x 0.24"W x 0.39"Th (1 x 0.6 x 1 cm)

What's in the box

Stirrers

Who Should Buy?

Suitable For
  • Laboratory Technicians

    Perfect for lab technicians conducting experiments that require consistent stirring of liquids under high temperatures.

  • Chemistry Students

    Ideal for chemistry students needing reliable stir bars for experiments in educational settings and practical labs.

  • Research Scientists

    Useful for research scientists who require durable, high-temperature stirring tools for experimental setups and analysis.

Not Suitable For
  • Home Cooks

    Not suitable for home cooking applications where traditional stirring methods or basic kitchen tools are preferred.

Product Description

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is a magnetic stirrer mixer stir bar?

    Answer: A magnetic stirrer mixer stir bar is a small, cylindrical device used to create a stirring motion in liquid mediums, typically in laboratory settings. It functions by rotating within a magnetic field created by an external magnetic stirrer, ensuring even mixing. These stir bars are often coated with high-temperature PTFE to withstand various chemical reactions and high heat, making them essential for experiments that require precise fluid dynamics.
  • Question: What materials are used in the construction of the PTFE magnetic stir bar?

    Answer: The PTFE magnetic stir bar is primarily constructed from polytetrafluoroethylene (PTFE), a robust and chemically resistant plastic. This material offers excellent durability and the ability to handle high temperatures, making it ideal for a variety of laboratory applications. The magnetic core, typically made from a ferrous material, allows the stir bar to be moved by an external magnet. This combination ensures that the stir bar can withstand harsh chemical environments while providing reliable stirring.
  • Question: How do I use the magnetic stirrer mixer stir bar effectively?

    Answer: To use a magnetic stirrer mixer stir bar, place the stir bar in your container with the liquid to be mixed, then position the container on the magnetic stirrer. Turn on the stirrer, adjusting the speed as needed. For optimal results, ensure that the stir bar is fully submerged in liquid, but not touching the bottom of the container. This technique is particularly effective for dissolving solids in solvents or maintaining uniformity in chemical mixtures.
  • Question: What size magnetic stir bar should I use?

    Answer: Selecting the appropriate size for your magnetic stir bar depends on the volume and shape of your container. For standard laboratory flasks or beakers, a 10mm stir bar is generally suitable, providing good stirring capabilities for smaller volumes. However, for larger volumes or more viscous substances, larger or multiple stir bars may be required to achieve effective mixing. It's essential to use a size that ensures complete stirring without excessive turbulence.
  • Question: Can the PTFE magnetic stir bar be used with corrosive liquids?

    Answer: Yes, the PTFE magnetic stir bar is designed to withstand a wide range of chemicals, including corrosive liquids. The PTFE coating provides a protective barrier, preventing chemical reactions that could compromise the stir bar’s integrity. This makes it suitable for handling acids, bases, and other aggressive chemical agents in laboratory settings, ensuring a safe and efficient stirring process.
  • Question: Are magnetic stir bars reusable?

    Answer: Absolutely! Magnetic stir bars are reusable and durable, provided they are properly cleaned after each use. To extend their lifespan, ensure they are rinsed in appropriate solvents to remove any residues. Regularly inspect for signs of wear or cracks, as these can affect performance. Reusing these stir bars is cost-effective and environmentally friendly, as it reduces waste.
  • Question: What is the maximum temperature these stir bars can handle?

    Answer: The high-temperature PTFE magnetic stir bars can generally withstand temperatures up to 260°C (500°F), making them suitable for a variety of high-temperature laboratory processes. This heat tolerance is vital in experiments involving boiling solvents or reactions that generate heat. Always ensure that the operating conditions do not exceed the recommended temperature to maintain the integrity of the stir bar.
  • Question: How many stir bars are included in the package?

    Answer: The package includes 10 pieces of 10mm magnetic stir bars. Having multiple stir bars allows for concurrent experiments or replacements when needed, which is particularly beneficial in busy laboratory environments. This quantity provides flexibility for various applications, ensuring that users have enough stir bars for different experiments without the hassle of frequent repurchasing.
  • Question: Where can I buy 10 Pcs 10mm Magnetic Stirrer Mixer Stir Bar?

    Answer: You can buy the 10 Pcs 10mm Magnetic Stirrer Mixer Stir Bar from Ubuy. Ubuy offers a wide selection of laboratory equipment and supplies, making it a convenient option for purchasing high-quality magnetic stir bars tailored for your needs in Sri Lanka.
  • Question: What are the advantages of using PTFE magnetic stir bars over glass ones?

    Answer: PTFE magnetic stir bars present several advantages over glass stir bars, primarily their chemical resistance and durability. Unlike glass, PTFE will not shatter, minimizing safety hazards in the laboratory. Furthermore, PTFE stir bars can endure higher temperatures, making them ideal for a wider range of experiments. Their smooth surface also helps reduce friction, facilitating more effective mixing in various solutions, from viscous liquids to highly reactive substances.

SWANSOFT Stirrers Editorial Review

The 10 Pcs 20mm0.8 Inch Magnetic Stirrer Mixer Stir Bar is an affordable laboratory bar for liquid cultures. Although some customers have reported that the magnets used in the product are weaker than what they are used to, the overall quality of the product is reasonable for the price. The stir bar works well in smaller jars and does a great job at aerating and breaking things up. However, some customers have reported that the product is not balanced well and is not easy to clean. Despite this, the company has been praised for their dedication to fixing mistakes and providing excellent customer service.

Customer Reviews & Ratings

265 customers ratings
  • 5 Star
    81%
  • 4 Star
    11%
  • 3 Star
    4%
  • 2 Star
    3%
  • 1 Star
    1%

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Pros

  • Affordable price
  • Works well in smaller jars
  • Does a great job at aerating and breaking things up

Cons

  • Magnets used in the product are weaker than what some customers are used to

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“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”

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23 July 2026 · via Trustpilot
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Features & Benefits

  • High rotational forces ensure thorough sample stirring.
  • Resistant to corrosion, chemicals, and high temperatures.
  • Reduces vibrations and wear, maintaining optimal position in vessels.
  • Suitable for scientific research, universities, laboratories, and family usage.
  • 10pcs PTFE magnetic stir bars, dimensions: Φ7 × 20mm/0.8 inch.

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