How to make a simple magnetic stirrer?
Below we will explain the production method in detail for you step by step.
This is what a magnetic stirrer looks like. Put the liquid in the beaker on it and it will stir automatically after power on.
The principle of this device is very simple. It is a motor that drives a magnet to rotate. A magnetic stirring rod is placed in the liquid in the beaker, and the stirring rod rotates with the magnet underneath to stir.
A bench drill is used to drill the bracket, and a screw rod is inserted into the hole to fix the bracket.
The motor is on an unused CD player.
It is a similar small electric motor.
The round hole containing the motor is drilled with a flat drill, and this kind of drill is used to drill large holes.
The square slot that accommodates the switch and the small power socket is first drilled with a drill bit and then trimmed with a chisel. This foreigner doesn't have a milling cutter, otherwise he can mill out the groove directly.
The small power socket he used was an audio socket removed from an old CD player.
The DC power supply he used was also welded with audio plugs to match the sockets used above. Note that this is not a special power plug.
The magnet was removed from the used hard drive.
The black stuff in his hand is the stirring rod. Because the stirring rod is often put into the chemical liquid, it is not a simple iron rod, but is wrapped with Teflon plastic.
This kind of small-opening flask requires high-speed stirring for chemical reactions, and this kind of electromagnetic stirrer is very suitable.
There are many different versions of DIN Connectors. The name of each type comes from the number of pins the connector has (3-pin DIN, 4-pin DIN, etc.) Some of these pin numbers come in different configurations, with the pins arranged differently from one configuration to the next.
DIN cable connector 3-pin, 4-pin, 5-pin, 6-pin, 7-pin, 8-pin degree 180, 216, 240, 262, 270
DIN cables, DIN connector, telephone cable, computer cable, audio cable
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