• What is an oil expeller press?
  • French custom designs, manufactures and supports oilseed preparation equipment and screw presses, sometimes referred to as oil expeller presses. These oil extraction machines gather vegetable oil from oil-bearing seeds and nuts for food and industrial uses, including biodiesel and other fuels.
  • Who is French oil extraction machine & screw presses?
  • Today, French stands as a leading supplier and innovator of oil extraction machines and mechanical oilseed screw presses. French has provided thousands of roller mill and mechanical screw presses around the world, processing all major oilseeds with customers in more than 80 countries.
  • What is industrial pressing of oilseeds?
  • Industrial pressing of oilseeds is realized using continuous screw presses. The presses are fed with crude or pre-treated seeds. Types of pre-treatments (thermal pre-treatment, size reduction, mechanical sieving, etc.) differ for various seed species (Carr 1997). Each type of seed pre-treatment provides its own advantages.
  • What are the different types of presses used in oil mills?
  • Pressing can be defined as a compression step to exude a liquid from a porous matrix (Schwartzberg 1997). Two types of presses are mainly used in oil mill: hydraulic presses and screw presses. This distinction reflects the historical process.
  • Do different types of oilseeds produce the same pressing performance?
  • Many authors have tested different varieties of a same oilseed species in identical conditions and compared the resulting pressing performance (Table 3).
  • Do peanut seeds have optimum oil yield?
  • A similar trend was noted by Sivakumaran for peanuts (Sivakumaran et al. 1985). For some seeds, like sesame or jatropha, the presence of an optimum of oil yield in function of moisture content was observed (Olayanju et al. 2006; Pradhan et al. 2011).