Magnetic stirrers are fundamental and essential tools in laboratories of all types, used for efficient and uniform mixing of liquids. They operate using a rotating magnetic field that causes a stir bar within the liquid to move, resulting in homogeneous dispersion of dissolved or suspended substances. Their efficiency, compactness, and ability to stir even in closed containers make them a common solution for a wide range of applications. Most magnetic stirrers are available combined with a heating plate (called a Hot Plate Stirrer), allowing for simultaneous control of liquid temperature and stirring.
The operating principle of a magnetic stirrer is simple and elegant: at the base of the device, a magnet rotates using a motor. When a vessel containing liquid and a small magnetic stir bar is placed on the stirrer surface, the device’s rotating magnetic field activates the stir bar within the liquid, causing it to rotate at the same speed. The stir bar’s rotation creates a current in the liquid that mixes it uniformly, ensuring consistent reaction conditions or sample homogeneity.
A key advantage of magnetic stirrers is the absence of direct physical contact between the stirring mechanism and the liquid, apart from the stir bar itself. This feature is particularly beneficial for stirring contamination-sensitive materials, working with hazardous or volatile liquids in closed containers, and simplifies the cleaning process compared to mechanical stirrers. Magnetic stirrers offer precise speed control, often with digital displays, allowing adaptation to the required stirring intensity. Models integrated with heating provide a convenient, space-saving 2-in-1 solution for simultaneous temperature control and stirring, crucial for many chemical and biological processes.
Magnetic stirrers are versatile tools essential in a vast array of laboratory applications where efficient and controllable mixing is required:
Their efficiency, reliability, and ease of use have made the magnetic stirrer an indispensable tool on the workbench of virtually every chemist, biologist, or lab professional.
Labotal brings you a wide selection of magnetic stirrers and magnetic hot plates from world-leading and reliable brands, such as IKA. The equipment we supply is carefully selected to offer robust performance and is characterized by precise speed and temperature control, high stability, excellent chemical resistance of the work surface (usually ceramic or stainless steel), powerful motors providing uniform stirring even at low speeds, and advanced safety mechanisms (such as hot surface indication and overheating protection). We offer models suitable for different stirring volumes (from single milliliters up to tens of liters) and various application types, including stirrers with advanced digital control and temperature monitoring via an external sensor (PT1000) for maximum accuracy and reproducibility.
Choosing a magnetic stirrer from Labotal means investing in high-quality, high-performance equipment backed by the extensive experience and excellent service of our expert team. We are available for professional consultation in selecting the model and configuration best suited for your specific applications, provide comprehensive technical support, laboratory services for calibration and maintenance, and ensure that your magnetic stirrer operates accurately and reliably for years. Our commitment is to provide you with the best tools to achieve the most accurate and consistent results in the lab.
We invite you to browse Labotal’s full catalog of magnetic stirrers and magnetic hot plates and discover the wide range of our high-quality and reliable solutions. For professional consultation and personalized adaptation of equipment for your laboratory, please do not hesitate to contact our expert team.
Accessibility Tools
