These presses are all very well made from cast and machined steel and wood.
The base is cast with a threaded spindle which allows the large nut to screw down the press.
This bears on two semi circular wood blocks which act as the piston, the depth of press is added to with more wood blocks.
The basket is slatted wood and splits into two pieces to allow the pressed fruit to be removed easily.
As the crushed fruit is pressed it runs out between the slats and collects in the base of the press. A lip allows a bucket to collect the juice.
The wooden slats on these presses are close enough together that you don't need a bag. The cage acts as the strainer. They are fast and efficient and made to last.