I like the idea of the stainless steel garbage disposal but you can’t get them apart to get everything clean. This will result in pockets of mold forming in the machine. Some mold spores survive very well thru periods of being dry and ‘activate’ when they get wetted with more juice.
It doesn't have to come apart to sanitize it. Water through it while running takes care of a lot. I add a sanitizing solution, StarSan
®. It's a foaming solution readily available at homebrew/wine shops, that reaches all internal parts. That is generally what commercial food producers do with their CIP (clean in place) systems.
At my age, I don’t take chances, so I heat the juice on the stove to 160 degrees, ice bath it, bottle in A&W plastic jugs they sell me and freeze till used.
I use sodium metabisulfite (campden tablets) right after pressing. It kills all the wildlife and pretty much gasses itself out of existence in 24 hours. It then somehow turns itself into hard cider and migrates to my kegerator which children and young adults don't have access to.