How do magnetic stirrers work

A bit of experimentation should yield an inexpensive and effective stirrer. The Stir Bar Magnets come in four sizes:. In our videos, we used a strong D6C cylinder magnet to retrieve the stir bar from the fluid. Our TIN1 sample package of magnets has a useful collection of magnet sizes and shapes, which we used for the stir plate mechanism. The B block magnets we taped to the fan came from the TIN1 sample pack. For help identifying the poles of magnets, see: Which Pole is North?

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If tax exempt, the Company Name field above must match the name on your tax exempt certificate. Account Info Logout. Cart 0. Your shopping cart is currently empty. Click Here for our Shipping Policy Details. To avoid any burn- or fire-related accidents with this product, it is strongly advised that the standards for splicing and insulating wires and other proper handling and electrical practices are observed.

To avoid electrocution, unplug any circuit or assemblies with live electrical power before touching them. Protective gloves and tools should be used when handling sharp and rough objects. In addition, any remaining electronic waste parts must be disposed properly. Finally, it is recommended that proper training, an instructional manual, and signage are prepared for users to minimize risks with using the product.

A low-cost magnetic stirrer with hot plate was developed using recycled parts from discarded computers and other electronic wastes. This equipment can be used to address the teaching and learning gap in science laboratories worldwide. By addressing this equipment availability issues, especially in developing countries, the drive toward inclusive progress can be pushed in a more concrete and sustainable way.

Supporting Information. Author Information. Armando M. Paul M. Giselle Mae M. The authors declare no competing financial interest. American Association of Physics Teachers. We investigate the flow generated by a magnetic stirrer in cylindrical containers by optical observations, particle image velocimetry measurements, and particle and dye tracking methods.

The tangential flow is that of an ideal vortex outside a core, but inside downwelling occurs with a strong jet in the very middle. In the core region dye patterns remain visible over minutes indicating inefficient mixing in this region. The results of quant. The tangential flow is similar to that of large atm. Google Scholar There is no corresponding record for this reference. A simple magnetic stirrer J.

Magnetic stirrer for large volumes J. Versatile magnetic stirrer and flexible coupler J. An inexpensive magnetic stirrer J. Regulating the speed of a magnetic stirrer J.

A novel and cheap magnetic stirrer J. How to Make a Magnetic Stirrer. Al-Mn alloy 3S is used, and dimensions of pieces for construction are given. An efficient, inexpensive hot plate J.

Magnetic StirrerHotplate. Magnetic Stirrer with Heat Plate. Cited By. This article is cited by 8 publications. The movement of this stir bar mixes the sample thoroughly with rapid movement and agitation. These stirrers should be used with glass or other non-metal beakers to prevent interference with the magnetic field. With the use of heating plates, you can mix a wide variety of samples for different applications.

Aside from magnetic stirrers, you may also mix your samples using motor power overhead stirrers. Overhead stirrers are equipped with sensors that shut down the motor if it overheats, which can happen with especially viscous liquids. Technicians can control many different aspects of operation and cycle settings with overhead stirrers, but they are limited to the kinds of samples they can effectively mix.

If you are mixing a low-viscosity liquid in higher volumes, an overhead stirrer is probably the right way to go. Regardless of what kind of stirrer is right for your needs, you can find the highest quality equipment at Labnet International.

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