This will create 562.5 Purple cubes a minute from "raw" input.
Input:
922 iron ore/min
864 graphite/min
461 titanium ingots/min
360 plastic/min
1383 copper ore/min
4608 silicon ore/min
For my universe's purposes, I've considered titanium ingots, plastic, and graphite as "raw". All raw materials have monitors on them and will alarm if there is nothing on the belt.