Sterilizing Station
Palm fruit sterilizing process.
Through fruit reception system the palm fruit bunches will be transported to the next process –
sterilizing station. The disinfection process utilizes steam or water to sterilize the fresh palm fruits.
This process likewise stops enzymatic responses that prompt oxidation and upsets the cells which are
found in the mesocarp, so that it improves the oil extraction efficiency and final oil product quality.
Dry sterilizing means roasting or smoking the fruits, while wet process means boiling or steaming the
fruits. If chose dry process, the palm fruits are separated first, and then sterilized. If wet process, the
fruits are sterilized before threshing.

Threshing Station
Threshing process of palm oil mill.
In the threshing process of palm oil mill, the fruitlets are separated from the whole bunches by use of
stripper machine. Threshing is generally mechanical in large palm oil mill by use of thresher, which
rotates or vibrates to remove the fruits from the bunch.

Digesting Station
Digesting process of palm oil mill.
Before extracting oil, the palm fruits need to be crushed in digester machines. To augment oil yield,
the fruit pulp is also warmed in this process. The mesocarp and nuts can be squeezed together in palm
oil making/pressing machine. But if you plan to make Grade A Palm Oil, the palm nut/kernel should
be removed before oil pressing section.

Oil Pressing Station
Palm oil making machine.
The pulp is then pressed, which bursts the oil-containing cells, releasing the palm oil. There are several
types of oil making machines that may be used to press the fruit pulp, including manual presses,
hydraulic presses, and screw presses. The screw press is the most commonly used palm oil making
machine in both small and large scale palm oil manufacturing plant due to its high oil extraction rate.

Palm Oil Clarification Station
Clarification of palm oil manufacturing.
The purpose of clarification in palm oil manufacturing process is to remove impurities. The final crude
palm oil will be stored in bulk in a tank.

Palm Kernel Recovery Plant
After palm oil expelling, the solids parts discharged from the screw press is mixture of fiber and nuts.
In palm kernel recovery plant, the nuts and fiber are separated by physical means. The nuts are sent to
palm kernel crushing and solvent extraction plant to make palm kernel oil, while the fiber is used as
biomass fuel in boiler on-site