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Magnetic Stirrer Magnetic Stirrer

Item Description
Magnetic stirrers employ magnetic fields to cause a stir bar immersed in a liquid to spin very quickly, thus stirring it. These magnetic stirrers are often used in laboratories for mixing of liquids at an even speed.

This model is widely used in universities, environmental protection, scientific researching, chemical industry, hygiene and disease controlling, medical treatment etc.

HJ-1 Magnetic Stirrer Specifications
Input Power
120v AC
Rotating Speed
0-2400 rpm stepless speed governing
Max mixing capacity
1 Liter

Method of Application:

Plug in the power supply. Pour the liquid to be tested into a beaker and then place the beaker on the working plate. Turn on the power switch and adjust the speed from slow to fast according to your specific application.

Use in Biodiesel
Magnetic stirrers are great for stirring during a titration. While the stirrer does the mixing, a user can determine a more accurate titration by mixing the chemicals in a more even and controlled manner. The consistent rate of stirring can easily be achieved with the stirrer for concentration on the titration process itself and addition of catalyst solutions.
Magnetic stirrers may also be used for biodiesel test batches. The larger stir bars can easily create a good amount of agitation for the biodiesel process.


Stir Bar Sizing

The size of the stir bar to be used depends on the individual application. Keep in mind that a larger stir bar is not necessarily better. Larger stir bars have lower maximum spinning speeds. When the speed of a stir bar is too much for its size, it will jump around and skip inside of the beaker. Slippery and viscous liquids such as oils will also cause this to happen faster than non-slippery fluids like water.


Magnetic Stirrer
HJ-1 Magnetic Stirrer
• 0-2400 rpm stepless speed governing
• Includes 25mm Stir Bar
• For use with magnetic stir bars
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