Rewinding a DC motor for different voltages Answered
I modified small DC motors, like used in toys and such but now I have one that requires to do it properly.
Motor in question runs on 24V and uses about 3.5A under full load.
Drives a high pressure water pump on either side of the shaft.
The rotor is basically empty with just a few turns of wire and lots of empty space.
I assume the same model is used for multiple power configurations by the manufacturer.
For the toys my basic approach was to just calculated the number of turns or to count them when removing.
From there I get the voltage per turn and can rewind accordingly.
So in theory and by blissfully ignoring all higher things involved I could do this motor the same way.
Right now I see 10 windings per coil, so with thicker wire I would use 5 to run it on 12V at roughly the same speed.
Only problem is that thing then would use around 7.5 to 8A when running under full load and get quite hot.
I need the speed to keep the flowrate at the same 7.5L per minute but I also need the power to be able to still get the 120PSI from just 12V.
Isn't there any winding trickery that would allow me to reduce the required current a bit without sacrificing on speed or torque?