Magnetic agitator for an amateur chemist

[Vermes]

The device is a small magnetic agitator for an amateur chemist.
The agitator works on 12V and it's made of plastic and wood. The neodymium magnet is from a hard drive. It's glued to the bottom of the fan. The steering system is viewed below – it's based on lm317 from Uniwersalne Minizasilacze | Mirley - Elektronika i Programowanie

Mixing element is made of two magnets and a dead DVD recorder. As a protection, a piece of silicone tube was used. The silicone was chosen because of its specific features: its resistance to solvents and acids. It was melted with a lighter and the magnets were closed in it.



As it is viewed on the first image, the agitator can mix water in a half liter mug.



Link to original thread - Proste mieszadło magnetyczne dla chemika amatora

 

[srizbf]

your idea is an excellent low cost solution.

where do the agitating magnets in silicone tube is placed ?
is it simply put inside the solution or suspended in a rotating bar ?

 

[FvM]

As a protection, a piece of silicone tube was used. The silicone was chosen because of its specific features: its resistance to solvents and acids. It was melted with a lighter and the magnets were closed in it.

If it can be molten by heat, it surely isn't silicone rubber. Rather softened PVC.