The most useful nine kinds screw oil press

The Definition of the screw oil press

The screw oil press is a screw driven machine ,and it can extrudes the oil from the oil seeds by raising the temperature and activating the oil molecules by external mechanical forces.

What material can the machine press?

The 6Yl series screw oil press of our company can be used for pressing various seeds and fruit, such as peanuts, rapeseeds, sesame, soybeans, coconut, mustard seed cotton seeds, tea seeds, tung tree seeds, sunflower seeds, palm seeds and so on.


Can the machine be used for hot press or cold press?

Our screw oil press machine can be used for both hot press and cold press.

What Preparatory work should I do

before starting an oil press machine?

  • Tighten every bolt,nut, check is there any loose or damage in the parts. Lubricate sheave and turn it make sure it is movable or intervented with other parts.
  • Remove any foreign articles, e.g. stones, iron scraps etc. to avoid damaging the machine.
  • Before operating, adjust clearance between screw shaft and cake outlet ring by return the shaft for 2-4 circles when they touched against each other. After adjustment, operation the machine idly for 5 minutres, make sure there is no any unusual sound, and then feed in.screw oil press

Some main material for pressing


There are two ways of extruding soybean oil in soybean oil plant. They are hot pressing and cold pressing.

(1) Hot Pressing:  Soybeans – Selecting – Prepressing – Heating — Pressing.

First select soybeans and remove foreign particles, then soften the material by breaking and adding water of 7- 8% and then steam them to 115C, beans will be ready for pressing.
(2) Cold Pressing:Soybeans — Selecting– Pressing (in case of adequate water content).


Rape Seeds

Methods of hot pressing and cold pressing with rapeseed oil press can also be used to extruding rapeseed oil in . Hot pressing is recommended for the reason that oil extracted by the method of hot pressing is of higher quality and higher oil output rate.

  • Hot Pressing:  Rapeseeds – Selecting – Prepressing – Heating — Pressing.

 When using the method of hot pressing, to remove foreign particles by selection, then check water content as described above , in case of too dry.  Add 2.5-3% of water, normally two times extruding is enough. 

  • Cold Pressing:  Rapeseeds — Selecting– Pressing (in case of adequate water content).

  When using the method of cold pressing, pre-press and heat the seeds after selecting the material. Add 2-3% .of water and awaittill look coffee color and temperature 110- 120C, then ready for pressing.screw oil press

Groundnuts Kernel

Cold and hot pressing are both available, but hot pressing methods have better effect than cold pressing. Firstly crack or pre-press groundnut kernels then steam them for 1.5-2 hours, temperature should control about 120C and the water content control about 3%. Normal pressing starts at temp

erature of 85C or crack them firstly and at a pol. add 7- 8% of water. Look coffee color will be ready for pressing. If groundnuts with shells, you should remove the shell in advance by a peanut sheller, then it can be used for groundnut oil mill plant.screw oil press


Roast the sesame seeds until light gray with a burst phenomenon before pressing. At the same time, the sesame oil will outflow when pinching the sesame seed with your hand. Using big fire to roast sesame seeds, the temperature may be 120-150℃. Then press the roasted sesame seeds thoroughly sesame oil extraction machine to get the pure oil at one time. And the sesame oil meal(de-oiled cake) has strip shape with 0.7-15mm thickness.screw oil press

Cotton seeds

before pressing cotton seeds, roaste the oil seeds until light yellow, the seeds temperature is 120-130℃. Then press them, the thickness of cotton seeds oil meal (de-oiled cake) is 1-1.5mm.


The main screw oil press parameters







Oil content of dry        cakes











Spiral axes rotate          speed(r/min  








1-1.5 ≤7 . 8 5 . 5 220/380 1000*538*1050 130-160 160  


2-4 ≤7 . 8 5 . 5 220/380 1320*540*1020 45-50 350  


4-5 ≤7 . 8 7.5 220/380 1610*615*1260 30-40 620  


5-7 ≤7 . 0 7.5 220/380 1640*640*1200 30-40 520  


6-8 ≤7 . 6 15 220/380 1750*570*1320 44-45 620  


7-10 ≤7 . 6 15 220/380 1750*570*1320 35-39 620  


10-12 ≤7 . 6  


220/380 1980*680*1460 35-39 800  
YL-160 14-18 ≤7 . 6 22 220/380 2020*700*1480 35-39 1000  
YL-180 19-22 ≤7 . 6 22 220/380 2300*800*1650 35-39 1700  

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