Spinbar Rare Earth Magnetic Stirring Bar Bel-Art Octagon 5.10×0.95

Description

Product Overview

The Bel-Art Spinbar Rare Earth Teflon Octagon Magnetic Stirring Bar is engineered for high‑performance laboratory mixing. Measuring 5.10 × 0.95 cm, the bar features a robust samarium‑cobalt rare‑earth magnet that delivers superior magnetic attraction, even in highly viscous or high‑speed environments. Its octagonal geometry creates increased turbulence compared with traditional cylindrical stir bars, generating a stronger vortex that accelerates dissolution and homogenization. The outer casing is made from chemically inert PTFE (Teflon), providing excellent resistance to acids, bases, solvents, and other aggressive reagents while minimizing friction and wear. A built‑in pivot ring reduces vibration and prolongs the lifespan of both the stir bar and the magnetic stir plate. The distinctive green color enables rapid visual identification, simplifying workflow in busy laboratory settings.

Usage

This magnetic stir bar is suited for a wide range of laboratory applications, including organic synthesis, analytical chemistry, pharmaceutical formulation, and quality‑control testing. It performs reliably in standard glassware such as beakers, flasks, and reaction vessels, as well as in specialized containers like sealed tubes and pressure reactors. The strong magnetic coupling ensures consistent stirring even when dealing with high‑viscosity liquids like polymer solutions, oil‑based extracts, or suspensions of solid particles. Its chemical‑resistant PTFE surface allows direct contact with corrosive reagents without degradation, making it an ideal choice for acid‑base titrations, catalyst preparations, and buffer solutions. The bar’s compact size fits comfortably on most magnetic stir plates, and its green hue helps technicians quickly locate the bar during multi‑step protocols.

Why Choose Us

Choosing the Bel-Art Spinbar means selecting a product backed by decades of laboratory equipment expertise. Bel‑Art Products is a recognized leader in high‑quality lab accessories, and each stir bar undergoes rigorous quality‑control testing to verify magnetic strength, dimensional accuracy, and PTFE integrity. The rare‑earth magnet core provides a measurable advantage over alnico‑based alternatives, delivering up to 30 % higher torque in viscous media. The octagonal design is patented to maximize fluid dynamics, reducing mixing time and improving reproducibility across experiments. Additionally, the green PTFE coating is formulated for low surface energy, facilitating easy cleaning and preventing cross‑contamination. Customers benefit from responsive technical support, a comprehensive warranty, and access to detailed usage guidelines that help maximize the bar’s performance in any laboratory setting.

Key Features

• Octagonal shape creates a stronger vortex for faster, more uniform mixing
• Rare‑earth samarium‑cobalt magnet provides superior magnetic coupling in viscous solutions
• PTFE (Teflon) coating offers excellent chemical resistance and low friction
• Built‑in pivot ring reduces vibration, extending the life of both bar and stir plate
• Dedicated customer support and warranty ensure reliable after‑sales service

FAQ

What types of chemicals can the Spinbar be used with?

The PTFE coating is inert to most acids, bases, solvents, and organic reagents, allowing safe use with a broad spectrum of laboratory chemicals without degradation.

Can the Spinbar handle high‑viscosity fluids?

Yes. The rare‑earth magnet core delivers strong magnetic torque, enabling effective stirring of viscous liquids such as polymer melts, oil suspensions, and dense solutions.

Is the green color purely cosmetic?

The green PTFE coating provides quick visual identification, which helps prevent mix‑ups in busy labs and aids in locating the bar after a reaction is complete.

What size stir plates are compatible with this bar?

The 5.10 × 0.95 cm dimensions fit standard magnetic stir plates commonly found in research and quality‑control laboratories.

How do I clean the Spinbar after use?

Rinse the bar with appropriate solvents, then wipe with a soft lint‑free cloth. For stubborn residues, a mild PTFE‑safe detergent can be used, followed by thorough rinsing and drying.