Sunflower oil is one of the highly demanded oil around the world. It has been preferred by many people because of the sweet aroma and good smell. While how to make sunflower oil by using sunflower oil mill machinery? Here I will introduce the main process of sunflower oil machine production.

The sunflower oil mill machinery processing process:

1. Sunflower oil mill machineryl pre-press step

  First, using magnetic roller , destoner and cleaning machine to remove metals, small stones , impurities from sunflower raw seeds.

  Second, using husking machine to remove husks, separating screen to separate husk and sunflower kernel , here separating screen must not separate  completely uf not it will be too slippery for oil pre- press.

 Third, cooking sunflower seeds ready for oil pre-press 

 Fourth, pre-pressing sunflower seeds. here only pre-press part of sunflower oil , oil residue inside cake (about 12-16%) will be extracted in oil extraction process.After pre-pressed, the crude sunflower oil will be delivered directly to sunflower oil refining , and pressed cake to oil extraction

2. Sunflower oil mill machinery extraction step

 First, using solvent to extract oil from sunflower oil cake inside oil extractor, final products are mixed oil and wet meal

 Second, the mixed oil will pass through three evaporators to make solvent inside transform into gas , and solvent will be recovered through condensers and reused. These three evaporators are not with same size , the first evaporator is bigger than other two because there are more solvent inside mixed oil in the beginning . After evaporated, we will get crude sunflower oil ready for oil refining.

 Third,  the wet meal will be delivered to desolventizer to dry and be separated with solvent . The dry meal will be packaged for sale as animal feed.

 Note: Sunflower oil extraction is more and more important in oil processing , because oil residue inside meal is less than 1% much less than oil residue inside cake without extraction.

3. Sunflower oil mill machinery refining step

 First , hydrated degumming, mainly is to remove phosphatide inside crude sunflower oil in order to reduce oil loss and improve quality of oil .

 Second, alkali refining, using alkali to neutralize free fatty acid with by-product of soapstock ,which is used for making soap.

 Third, decoloration using bleaching clay to absorb darker colorant inside crude oil. 

 Fourth, deodorization is using high temparature to remove the impurities with bad smell .

 Fifth, dewaxing is using low temperature to freeze wax inside refined oil and then separate wax with vibrating screen.