12vdc motor vs 90vdc motor

[Futbalfantic]

I'm currently in the design process for a ball thrower. I have found 2 motors that will work. Both 1/4 HP. What is the advantage of one voltage over another?

 

[braxton357]

At that size almost nothing other than 12vdc power source be easier to find.

 

[jeepinmatt]

Only advantage to 90vdc is ability to use smaller wires because of lower amps, and less affected by poor or corroded connections.

Like ^ said, 12vdc is just so common which makes everything easier to come by. Plus you can stick two wires to your tongue to test for voltage!

 

[Fabrik8]

If you can find good enough spec sheets on the two motors, you'll probably find that they have slightly different torque curves and possibly different operational RPM because of the difference in motor current. They're both pretty low voltage as far as motors are concerned, so think about practical things like cable lengths, what will be supplying the motor power, and where that is located. There's going to be a big difference in current for a 90vdc verdus a 12vdc motor.

 

[Chris_Keziah]

I'd stick with the 12 VDC one to echo every once else here. Full load amps should be 15.5 for the 12 VDC and 2.1 for the 90 VDC motor. Still not terribly high, just make sure you use proper wire gauge.