Operating Principle and New Characteristic of Screw Oil Press

Operating Principle of Screw Oil Press
Oil bearing materials are feeded from hopper to pressing chamber, when the screw expeller pressing is running. Screw shaft rotates in the cage, which pushs the oil material into the machine for pressing. On the one hand, raw material keeps moving all the time in pressing chamber. Under the high pressure of pressing chamber, there is great friction drag between raw material and screw shaft, also between feedstock and press chamber. Thus the friction drag and relative movement emerge. On the other hand, the circle diameter of screw shaft root is gradually thickening and screw shaft distance is reducing little by little. When screw shaft is rotating, it pushes raw material strongly and rolls over outward at the same time. Thus there is relative movement among every raw material particle. The quantity of heat from friction drag satisfies technology in the pressing, which will contribute to thermal denaturation of protein in the material, and improve the oil extracting rate meantime. The screw oil expellers of big scale or small scale have similar theories during pressing process.


automatic screw oil press

The New Characteristics of New Multifunction Oil Press:
1. High work efficiency, capacity up to 150-250KG per hour.
2. Better configuration, complete electrical device.
3. Vacuum filtration, more pure edible oil.
4. High oil yield.
5. Wide application: great machine for pressing more than 20 kinds of oil crops, such as peanut, sesame, rapeseeds, flax seeds, sunflower seeds, etc.
Add:Structure Chart of Screw Oil Press


old oil press

Note: 1. Feed Section

2. Gear Case Section

3. Press Cage Section

4. Screw Shaft Section

5. Body

            Old Screw Oil Press


new oil press

Note:1. Electric Cabinet 

2. Feed hopper

3. Vacuum Oil filter

                                           New Screw Oil Press
Here are technical data below about semi-automatic screw oil press with different specifications.

Model Capacity(T/D) Power(KW) Outside Size(MM) Weight(KW)
AMS-68 1-1.5 5.5  880*440*765  140 
AMS-80 2-3  5.5 1320*440*1040  330 
AMS-95  3-5  7.5 1610*615*1260  420 
AMS-120  5-6  11 1770*610*1300  680 
AMS-120C  7-8 15  1870*750*1300  750 
AMS-130  9-12 18.5  1980*700*1460  820 
AMS-160  13-18  22 2020*700* 780   980


oil cake outlet


spare parts euipped for screw oil press


squeezing head

                       oil cake outlet                 spare parts equipped for screw oil press               squeezing head

Here are automatic screw oil presses with different specifications and technical data below:

Model Capacity(T/D) Power(KW) Outside Size(MM) Weight(KW)
AMS-80A 2-3 5.5 1760*1050*1850 600
AMS--95A 3-5 7.5 2050*1050*1850 940
AMS--120A 4-6 11 2220*1050*1850 1200
AMS--120CA 7-9 15 2340*1050*1850 1300
AMS--130A 9-12 18.5 2450*1100*1950 1500
AMS--160A 13-18 22 2600*1200*1950 1680




oil cake


oil filter vat

                    oil cake outlet                                                  oil cake                                                oil filter vat