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Circulating Cold Oil Expeller

Edible oil cold pressing overview Oilseed extraction technology affects oil yield and largely determines the concentration and type of trace lipid components extracted from the oil. Using direct oil pressing methods (without heat treatment), higher concentrations of natural trace lipid...

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Ruian Every Machinery Co., Ltd. is one of the most experienced manufacturers and suppliers of circulating cold oil expeller in China. Please feel free to buy cheap circulating cold oil expeller from our factory. Contact us for more details.

Edible oil cold pressing overview

Oilseed extraction technology affects oil yield and largely determines the concentration and type of trace lipid components extracted from the oil. Using direct oil pressing methods (without heat treatment), higher concentrations of natural trace lipid compounds, such as sterols and polyphenols, are retained in the oil. In a word, this process allows for the production of mildly flavored oils such as olive and linseed oils, and this is common in European and North American markets.

However, cold press technology has shortcomings in the use of screw oil making . In general, the residual oil rate in oil cake reaches about 12-20%, which is 2-3 times that of the hot pressed cake. Moreover, it is not suitable for raw materials with an oil content of less than 25%. Based on Chinese cooking oil preference: Strong aroma. Even though peanuts and sesame are high oil-containing raw materials, the cold pressing process is not used. In addition, for cottonseed, it is generally not suitable for this method due to the content of gossypol.

How to solve the problem of high residual oil rate

The most direct solution is to increase the number of pressings. Specifically, the oil cake that has been pressed for the first time is mixed with the raw materials by means of circulation, and then pressed for the second time.

Circulation squeezing working mechanism

Rayone oil press machinery designed circulation press system for the oil expeller machine is equipped with the corresponding parameters of the raw material conveyor, No. 1 conveyor directly transport the oil cake to No. 2 conveyor, and in No. 2 conveyor mixed raw materials, and then transported to the oil press, for the second pressing.

The circulating press system on the one hand solves the user's losses in the production process, at the same time saves the extra labor and time expended in the second pressing, and improves the whole efficiency of the production.