... 450×1340 mm 2. Fruit Juice extractor Structure & principlea,StructureIncluding Front-Bracket-seating ,feeding case,scew,filtering Mesh,Juice container, Back ... the middle seat of Roll bearing ,The motor is driving screw through a couple of triangle Belt wheel.b,PrincipleThis equipment ... become smaller and smaller .When the materiall is pushed by screw, the volume of scew antrum is reducing to push ...