The top 1 in oil machinery industry

The seeds which are used for oil machinery  include the peanuts or linseed, olives etc. The expeller press machine is used for extraction of oil from these seeds and after extraction the remaining solid material is used as bio fuel or fertilizer or as a food. Oil pressing or expeller pressing machine uses the process of extraction of oil from seeds or raw materials. Under high pressure the raw materials in a single step are squeezed. The typical raw materials like seeds, nuts and algae are used for extraction of food oils which are supplied in a continuous feed to the press machine. The friction heats up the raw materials when pressed. Higher pressures are required for the harder nuts and the materials on pressing can exceed the level of temperatures to 49 degrees Centigrade or 120 degrees Fahrenheit.

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A screw type machine is an expeller press which through a cavity like caged barrel presses the oil seeds. One side is used for entering the raw materials and the other side is used for the exit of the waste products. The machine uses continuous pressure and friction from the screw drives to compress and move the seed materials.

There are small openings through which the oil seeps and it does not allow the solids of the seed fibers to pass through the openings. The pressed seeds later are formed into cake like hardened structure which later from the machine is removed. The heat in the range of 60 to 99 degree Centigrade or 140 to 210 degree Fahrenheit is created by the pressure involved in the expeller press machine. Some mills use an apparatus for cooling or reducing the extreme temperatures which is effective in protecting some features of the extracted oil. The expeller pressing machine consists of three essential designs which include the resistor teeth, interrupted screw and continuous screw. A continuous screw design was used by the former expeller pressing machines.

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Three Main Parts of Edible oil processing --Oil Refining Project : www.firstoilmill.com/New/142.html