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In order to ensure the final yield and economic benefits of peanut oil processing, the cooking oil expeller to produce peanut oil must be carefully selected. At present, there are two kinds of cooking oil expeller on the market, one is screw expeller, the other is hydraulic expeller. These two types of cooking oil expeller will be introduced in detail below so that customers can choose the suitable one to produce peanut oil.
When screw expeller is running, the processed peanut materials automatically enters the pressing chamber from the hopper, and the peanut embryo is continuously pushed inward by the pressing screw. The pressure in the chamber of the oil press is very big, and there will be a lot of friction resistance among peanut materials, pressing screw and the pressing chamber. The peanut oil extraction rate of screw expeller is high, and the residual oil rate is only about 7%.
The advantages of the screw expeller are high degree of automation, continuous operation, large processing capacity, and automatic temperature control design to realize both hot pressing and cold pressing.
Screw cooking oil expeller
The hydraulic expeller mainly relies on the hydraulic pump to squeeze the peanut oil. After the squeezing is completed, the peanut cake needs to be taken out and reloaded. The hydraulic expeller produces less heat during peanut oil pressing, and the temperature is generally controlled below 60°, which is a typical cold pressing process of cooking oil.
The peanut oil squeezed by the hydraulic expeller is clear and has less impurities. But in comparison, the hydraulic expeller has low automation, high labor intensity, and small processing capacity.
Hydraulic cooking oil expeller
If you still have doubts about selecting cooking oil expeller to produce peanut oil, Henan Glory Company is a good choice for you. No matter you need cooking oil expeller or a complete set of peanut oil processing machine, our engineers can offer you machine customization, installation, commissioning services according to your processing needs. Welcome all new and old customers to have a factory tour and have a look at machine prototypes!
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