Re: "people have been squeezing fruit for juice at home for a very long time."
a bucket and an old laundry mangle. How primitive...
The most sold household item on the Balkans (including what was Yugoslavia) in my childhood was the Eureka washing machine. This contraption has separate washing and centrifuge compartments with top loading for both and easily disabled safety.
Here is a modern version of the same appliance: https://iak.olx.ph/images_olxph/824890925_4_1000x700.jpg?rev=001&bucket=04
As you can see - the design has remained virtually unchanged for 40 years despite it being large, ungainly and double the size of a normal washing machine. There is a reason for this - it has an alternative application in addition to washing - Grapes into the centrifuge, output hose into the cask, power, let's rolllllllll.... As the centrifuge is top loaded you can just dump them with a bucket. There is no drain pump - it is 100% gravity drained so there is nothing to go wrong too.
By the way - it costs less than 1/3rd of the contraption discussed here too.