1) High capacity,less installation space,little power consumption and simple control&maintenance.
2) Pre-pressed cake,being loose but not crushed,is helpful to sovent penetration
3) The Percentage of oil and water content in cake are suitable for sovent extraction.
4) The pre-pressed oil is higher quality than that obtained by single pressing or single sovent extraction.
(sunflower kernel or rape-seed serving as an example)
|Residual oil content in cake||about 13% (under normal conditions)|