This oval-shaped PTFE magnetic stir bar with a center diameter of 18 mm and 70 mm length is engineered for smooth and reliable stirring performance, even in larger laboratory vessels. The diameter tapers gradually toward both ends, ensuring reduced friction and stable rotation across a wide range of stirring speeds. Made from durable PTFE (Polytetrafluoroethylene), it provides excellent resistance to most chemicals and solvents while offering non-stick and easy-to-clean properties. Its broad temperature range makes it suitable for use in both heated and cooled processes. Product Details Feature Specification Material PTFE (Polytetrafluoroethylene) Shape Oval (tapered ends) Center Diameter 18 mm Length 70 mm Temperature Range –200 °C to 260 °C Chemical Resistance Excellent – suitable for most laboratory chemicals Application Magnetic stirring in medium to large vessels Ideal for chemical, biological, and industrial laboratory environments requiring efficient, consistent mixing.
