I made a scratter by converting a garden shredder. You can easily get the metal parts out and wash in soapy water and rinse, then spray with Starsan solution from a plant mister bottle. Post use, I strip the parts out and wash again, dry and store in sunflower oil until needed for the next scratting.
I use a large plastic trug, the type you might mix plaster in, to catch the scrat.
The scratted material I press using cheeses wrapped in muslin. I cut the top off a bucket to give me something to form the cheeses in to give me consistent depth.
I use a cross beam press and a 6 ton bottle jack. The muslin cheeses are separated by boards made from 25mm marine ply.
The bottom board has a block in the middle and a wooden surround, that have been screwed together from underneath and sealed with food grade silicon sealant. In the corner of the base board there is an adapted sink waste to allow the juice to drain directly into my fermenting vessels.
I get around 1 litre of juice per 2kg of apples.
I get easily scrat 100kg of apples an hour. It‘s the making of the cheeses that slows down the process.
I‘ve tried a small fruit press and found this very slow for the quantity of apples that I can get.
The whole system cost me around £100
I’ve made over 500 litres of cider this way.
Current cost 20p / litre and declining this Autumn.
Personal labour not costed.
There are YouTube vids of similar set ups.