I am reasearching sources for electric power motors , screw assembly switches etc.
Do a search locally for meat mincers and you might be amazed as I was.
The electric one is as much as the hand crank one. I might have to buy one to see how it performs with unshreded plastic.
My idea is to warm the plastic before it enters the mill. The output can be made with a new plate with one hole pending on our prefference.
BTW they are at 40-60e range. Of course there are more expensive ones but the you cant beat the price of the electric one when it supplies you with a power cord, switch and motor/drive unit.