Driving multiple electromagnets

[lpsd]

@Paul_B

If you used the 24 V version of the electromagnets (with appropriate supply of course), a TPIC6B595 would control them all perfectly using only three Arduino pins.

That is indeed cool to use a shift register, but Im not sure I want to make it more complicated for me, because I just only found out what it is
But why would I need to use 24v electromagnets for this?