The cooked seeds are then dried before the extraction process begins. A screw oil press machine is used to crush the castor oil-seeds to facilitate removal of the oil. The first phase of this extraction is called pre-pressing.
How does a castor seed extraction machine work?
Due to cooking, the oil droplets in the seeds come together and also the cell wall is broken, this results in improved oil yield and low power consumption. A continuous screw press is used to extract the oil. The castor seed passes through the machine where the screw shaft is rotated in the parallel direction and crushing the seeds.
Where is castor seed oil extracted?
We are experienced in turnkey Castor Seed Oil Extraction Plants. Our machines are working successfully in over 55 countries. Major Castor Seed producing countries are Brazil, India and Argentina. Other countries growing Castor include Indonesia, Indo-China, Madagascar, Angola and Mozambique.
What is an expeller press?
An expeller press is a screw-type machine that mainly presses oil seeds through a caged barrel-like cavity. Some other materials used with an expeller press include meat by-products, synthetic rubber and animal feeds. Raw materials enter one side of the press and waste products exit the other side.