small scale screw shea nut oil expeller

                                               
                                               
                                               
                                               
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  • What is screw oil expeller?
  • Screw oil expeller is a mechanical device which can generate pressure from rotation of feed to expeller screw manually or automatically. Screw press method for oil extraction is a mechanical method for extracting oil from raw materials. Extracted oil from screw pressing are used either as a food product or as an industrial product.
  • Can a mechanical oil expeller press be used for small scale oil extraction?
  • A mechanical oil expeller press was designed, constructed & further analyzed with simulation software (ANSYS) in this research work. This expeller can be useful for small scale oil extraction. ASME shaft design code was used in designing the screw shaft of the press. Locally available material (mild steel) was used in manufacturing of the expeller.
  • How does a screw expeller work?
  • In this developed screw expeller, seeds are confined in barrel through a hopper and extraction of the oil is accomplished by exerting sufficient force on confined seed. The residue of the material from which oil has been expressed exits from the unit and is known as the cake.
  • Why is screw shaft important in a screw expeller?
  • Screw shaft is the most vital element of screw expeller as it provides the required amount of pressure for extracting oil from the raw materials. It is evident from this study that, the failure of screw shaft will result into extra costs which is undesirable. In addition, excess stress, bending, displacement may cause major overhaul of the press.