Product Description


Soybean is a very common raw material for oil extraction. Its oil content is in the range of 15.6%-22.5% and contains 35%-45% of protein, It makes soybean a high-quality high-protein and high cost performance oil material.




In the programme of Hongde, Soybean oil extracting mainly includes three sections:


  • Soybean pre-treatment and pre-pressing
  • Soybean oil extraction
  • Soybean oil refining


Realated craft flow and equipments is as following:


1. Material Pre-treatment


In this section, the impurities in the soybean material will be removed and the soybean hulls will be separated. The bean embryo will be broken into small pieces and then processed into a puffed state. The purpose for this arrangement is to create a good production enviroment and minimize the total fat loss, increase oil yield and output and improve the quality of oil and cake & meal.







2. Oil Extraction


After sealed screw conveyor put the puffed soybean into exactor, the oil in extruded soybean will be dissolved by solvent, finally get crude oil. Compared with the pressing method, the residual rate of leaching is low (<1%) and offer a better quality meal. At the same time, this solution has the following features:

  1. Adopting negative pressure evaporation can ensure excellent oil quality;
  2. Extraction system is highly adaptable, and can adapt to different raw material ;
  3. All equipments are provided with exhaust gas absorption systems with excellent absorption effect;
  4. Full energy-saving design utilizes heat energy for many times and saves steam consumption.







3. Oil Refinery

Crude oil contains a large number of other ingredients that require further refining. In this section, continuous alkali refining shortens contact tome between oil and lye,which reduces oil saponification state,lowers refining consumption,and improves efficiency;negative pressure state avoids oxygen in the air from contacting with hot oil,thereby ensuring oil product quality ,inhibiting with hot oil,there by ensuring oil product quality,inhibiting acid value to rise again,and lowering peroxide value; physical refining section adopts new type continuous deacidiffication and deodorization craft, the actual production proves its most obvious advantages as following: strong deacidiffication ability ,excellent hot bleaching effect,high refining rate ,good oil quality etc.









Cooking oil making machine crude oil refinery machine

Product Description



(1) Purpose :Oil refining is according to the different usage and requirements , utilizing the physical 

methods and chemical processes to get rid of the harmful impurities and needless substance in the 

crude oil , getting some standard oil . Our oil refining machine is suitable for refining various crude

 vegetable oil, such as sunflower seed oil, tea seed oil, groundnut oil, cottonseed oil, palm oil, rice 

bran oil, soybean oil, corn oil and palm oil, etc.

(2)Main parts:refining pot , decoloration pot ,deodorization pot , oil pumps and other parts

(3) 3Advantage:a.After refining the impurity of oil must be less than 0.2% ;

                         b.Recycling system save power and money ; c.Lower oil waste. 

(4) 2Methods: a.Physical refining.  b.Chemical refining.

The specification of crude sunflower oil



Smell and taste

The original smell and taste of sunflower oil

Moisture and volatile matter (%)           ≤


Insoluble impurities (%)                         ≤


Acid value (mgKOH/g)                             ≤


Peroxide value (mmol/kg)                       ≤


The specification of refined sunflower oil



Color (Lovibond Cell 133.4mm)          ≤

R2.0  Y20

Smell and taste                                     ≤

No smell and good taste

Transparence                                        ≤

Clear and transparent

Moisture and volatile matter (%)       ≤


Insoluble impurities (%)                     ≤


Acid value (mgKOH/g)                         ≤


Peroxide value (mmol/kg)                   ≤


Smoke point (°C)                                 ≥



                             phosphoric acid               alkali liquor          

                                       ↓                        ↓                     

Filter crude oil-→preheat-→mix-→oil and alkali matching→hybrid reaction→remove soap→soap stock


1st grade oil←distillation deacidify deodorize←filtration←———–adsorption bleaching←dry←dehydration←wash←soft water

                         ↓                       ↓                   ↑                 ↓

                   vapour      waste carclazyte    adsorbent           waste water  


Sunflower continuous refining workshop

steam consumption:≤320kg/T oil
power consumption:≤60 degree/T oil
water consumption: 150Kg/T oil(soft oil)
Circulating cooling water quantity:about 200M3/hMain picture









Company Profiles

Our company is a leading manufacturer specialized in edible oil extraction machine,peanut oil extraction machine,soybean oil extraction machine,sunflower oil extraction machine,rapeseed oil extraction machine,rice bran oil extraction machine,sesame oil extraction machine,palm oil extraction machine and other oil seeds extraction machine.Our company service includes:technology design, installation and debugging, technical training, relocation of oil plant, technology reform and turnkey project.

Our edible oil extraction machine have gained many achievements and awards. And we have installed edible oil extraction machine in more than 20 countries over the world. Such as Malaysia, Indonesia, Nigeria, Liberia, Thailand, Congo, Zambia and Uzbekistan and so on.