PTFE Magnetic Stir Bar Aconabolics 20mm x 5mm Teflon Pack of 20

Description

Product Overview

The PTFE Magnetic Stir Bar from Aconabolics is engineered for laboratories that demand consistent, high‑performance mixing solutions. Constructed from premium PTFE (polytetrafluoroethylene), the stir bar offers exceptional chemical resistance, allowing it to withstand aggressive solvents, acids, and bases without degradation. Its cylindrical shape with a precisely centered magnetic core creates a stable vortex that promotes uniform fluid motion, even in highly viscous media. Each bar measures 20 mm in length and 5 mm in diameter, a size that fits comfortably in standard laboratory glassware such as beakers, flasks, and reaction vessels.

Beyond its robust material composition, the stir bar benefits from a smooth surface finish that minimizes drag and reduces the risk of sample contamination. The magnetic core is calibrated to deliver strong, consistent torque across a wide range of stirring speeds, ensuring that researchers can achieve the exact mixing intensity required for their protocols. The pack includes 20 individual stir bars, providing a convenient bulk solution that reduces the need for frequent reordering and supports high‑throughput workflows.

Designed with both durability and precision in mind, these stir bars are compatible with most magnetic stir plate models on the market. Their compact dimensions make them ideal for small‑scale reactions, while the strong magnetic coupling enables effective stirring in larger volumes when paired with appropriately sized stir plates. The PTFE coating also offers low friction, which helps to preserve the integrity of delicate samples and prolongs the lifespan of the stir bar itself.

In addition to their functional attributes, the stir bars are packaged in a clear, resealable container that protects each unit from dust and physical damage during storage and transport. The packaging includes clear labeling of size and quantity, simplifying inventory management for busy laboratory environments. Aconabolics’ commitment to quality control ensures that every stir bar meets stringent performance standards before it reaches the end user.

Overall, the PTFE Magnetic Stir Bar combines chemical resilience, magnetic strength, and ergonomic design to deliver a reliable mixing tool that meets the rigorous demands of modern scientific research. Whether used for routine sample preparation, kinetic studies, or complex synthesis procedures, these stir bars provide the consistency and durability required for reproducible results.

Usage

These stir bars are ideally suited for a wide range of laboratory applications, including organic synthesis, analytical chemistry, and biochemical assays. Their chemical‑resistant PTFE coating allows them to be used with solvents such as chloroform, dimethyl sulfoxide, and strong acids like hydrochloric or sulfuric acid without compromising performance. Researchers can employ the stir bars in temperature‑controlled environments, as PTFE maintains its structural integrity across a broad temperature spectrum, from sub‑ambient to elevated temperatures.

In practice, the cylindrical shape with a central point facilitates rapid vortex formation, making the stir bars effective for dissolving solids, homogenizing mixtures, and maintaining uniform temperature distribution throughout the solution. The 20 mm length is optimal for standard laboratory glassware, while the 5 mm diameter provides sufficient magnetic coupling for both low‑viscosity liquids and more viscous formulations such as polymer solutions or oil‑based extracts.

For high‑throughput laboratories, the pack of 20 ensures that multiple workstations can be equipped simultaneously, reducing downtime caused by missing or misplaced stir bars. The ease of cleaning—simply rinse with appropriate solvents and dry—helps maintain a sterile environment, which is essential for cell culture work or sensitive analytical procedures.

These stir bars also perform well in specialized equipment such as reflux condensers, sealed reaction vessels, and closed‑system mixers where maintaining a closed environment is critical. Their low magnetic drag minimizes heat generation, preserving the temperature stability of temperature‑sensitive reactions.

Why Choose Us

Aconabolics has a long‑standing reputation for delivering high‑quality laboratory accessories that meet stringent industry standards. Each PTFE Magnetic Stir Bar undergoes rigorous testing for magnetic strength, chemical resistance, and dimensional accuracy, ensuring that users receive a product that performs reliably batch after batch. Our quality assurance process includes visual inspection, magnetic torque verification, and dimensional measurement to guarantee consistency.

Choosing Aconabolics means benefiting from a responsive customer support team that is ready to assist with product selection, troubleshooting, and after‑sales service. We provide detailed technical documentation, including recommended stir plate settings for various solution viscosities, to help users achieve optimal performance quickly. Our commitment to sustainability is reflected in the recyclable packaging and the long lifespan of the PTFE stir bars, reducing waste in the laboratory.

Furthermore, our bulk packaging option offers cost savings for institutions that require large quantities of stir bars. By purchasing a pack of 20, laboratories can streamline their procurement process, reduce per‑unit cost, and maintain an uninterrupted supply of essential mixing tools. Aconabolics’ dedication to continuous improvement ensures that our products evolve with the latest advancements in laboratory technology.

Key Features

• Chemically resistant PTFE coating protects against aggressive solvents and acids, extending product life.
• Cylindrical shape with central magnetic point creates strong, uniform vortex for efficient mixing.
• 20 mm length and 5 mm diameter fit standard glassware while delivering reliable magnetic coupling.
• Pack of 20 provides a cost‑effective, ready‑to‑use supply for high‑throughput laboratory workflows.
• Dedicated Aconabolics customer support ensures quick assistance and reliable after‑sales service.

FAQ

What solvents are compatible with these PTFE stir bars?

The PTFE coating is highly resistant to a broad range of solvents, including organic solvents like acetone, ethanol, chloroform, and dimethyl sulfoxide, as well as strong acids such as hydrochloric and sulfuric acid. This makes the stir bars suitable for most laboratory applications.

Can these stir bars be used at high temperatures?

Yes. PTFE maintains its structural integrity and chemical resistance over a wide temperature range, typically from -200 °C up to 260 °C. They are safe for use in heated reactions, reflux setups, and temperature‑controlled stirring plates.

How do I clean and maintain the stir bars?

After use, rinse the stir bar with an appropriate solvent to remove residues, then dry with a lint‑free cloth or air‑dry. For stubborn deposits, a brief soak in a compatible cleaning solution followed by thorough rinsing will restore performance.

Are the stir bars compatible with all magnetic stir plates?

The magnetic core is designed to work with most standard laboratory magnetic stir plates. However, for extremely viscous solutions, selecting a stir plate with higher torque settings is recommended to achieve optimal stirring.

What is the warranty or guarantee on these products?

Aconabolics offers a limited one‑year warranty covering manufacturing defects. If a stir bar fails due to a defect within this period, we will replace it at no additional cost.