Screw type oil press machine made in China

oil press machine is very popular with the market,Most distinguishing feature of the oil press. Adopt screw press,All kinds of oil-bearing crops can be press on this machine.

1.Screw thread
(1)Pressing screw structure for the three press,this structure can ensure that the material is sufficiently squeezed.
(2) The screw thread is made of Cr12 die steel.Cr12 die steel has a high resistance to abrasion,which can prolong the service life of the machine.
2.Grooves for material rotation
(1) There is groove in both side of each screw row.It can make sure that the material can rotate in the press cage.And it also can make the material pressed fully.
With grooves on the screw row,5% oil yield can be improved.
(2) The space between screw rows is very small,which can make sure that the materials can be pressed competely.This can improve oil yield.

HOT Press
Advantage:
1.Since the seeds advance through fried, in the press process,just press it once contained the seeds of all the oil pressed out,cake residual oil rate is very low,it does not require a second press.
2.Hot pressed oil smells aroma,it had a very strong odor.
Shortcoming
Without further processing of hot oil,This oil has a very dark color, and contain a high acid value.

COLD Press
Advantage:
1. Cold press oil make sure all kinds of nutrition in the materials are not been damaged,Cold press oil is also helpful for people’s healthy.
2.When cooking,cold press oil will generate less cooking fumes than hot press,which can solve the troubles of some housewives.
Shortcoming
Use cold pressed method of oil extraction, Oil yield is low, cake need for secondary press.

Principle and Structure :
Screw expeller pressing is to separate the oil from oil bearing materials by the pressing power which comes from the change of chamber volume, drive from screw worm, resistance of curve teeth at press rings and extrusion friction between oil materials. Under the big pressure created in press chamber, the oil can be discharged from gap of press bars and oil trough of press rings. Either big scale and small scale of screw walnut oil press machine, they have similar theories in screw expeller pressing. Because the screw type seed walnut oil press machine is mainly used by extrusion theory, so it is also called as oil extruder or oil extrusion process.
Features of walnut oil press machine:
* Cast iron machine base;
* Special gear box structure make the rotating speed averagely;
* Main parts of chamber through the processing of high-temperature tempering and low temperature quenching;
* Cake thickness can be adjusted once the machine stop running;
* Superior grade oil cake;
* Compact structure, stable function, simple maintenance.

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