of seeds varying from small to large production capacities and the construction is designed very simply so it can be easily moved but it to generate pressure force in a range 51–153 kg/cm2. Oil can be produced from seed crops for up to approximately 200 kg/h (S et al. 2002). e cake is removed from the nozzle in the form of pellets, making it easy to place them in a bucket. Another advantage of this machine is that the work sites are clean, comfortable, quiet and the press is easy to use by the operator (B 2007). Another cylinder-hole press (Fig. 5) which suc-cessfully extracts oil from seed crops is a twin-screw extruder (D et al. 1999; P et al. 2002). e twin-screw extruder has two screws rotating in a cylinder with two parallel screw shafts that either rotate in the same direction (co-rotate) or rotate in opposite directions (counter-rotate). Further, co-rotation of the twin-screw extruder is the usually used method. It can extract oil from sunflower seeds giving a total oil yield of 78% but still has 10–13% oil