One-stage Dehulling

Farmet offers two versions of one-stage dehulling: one that lacks hull recovery and the other that includes hull recovery, which allows further dehulling of still-unhulled seeds.

Here is a list of advantages of dehulling prior to pressing (and achievable parameters):

  1. Fibre content reduction leading to a higher-quality feed.

  2. Increased oil yield. If unhulled seeds are pressed, a fraction of the oil remains soaked in the hulls in press cakes.

  3. Less wear of the pressing machinery. Hulls are very abrasive and reducing their content increases the service life of compression screws. However, the high abrasiveness also affects the dehulling machine and all the elements along the transport path of the hulls, where extreme stress must be counted with. To extend the service life of parts that come in contact with the hulls, we only use top-quality materials and procedures.

  4. Reducing wax and pigment content in oil. Waxes and colours (pigments) are found almost exclusively in the hull. Thus, removing most of the hull leads to a decrease in the wax content of pressed oil. The oil can be filtered more easily and the costs of oil refining are lower (winterization and bleaching).

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