What is Palm Kernel Expeller?
Palm kernel expeller sometimes also referred as palm kernel cake (PKC) is a by-product obtained from the crushing and expelling of oil from the palm kernel via the mechanical process.
Palm kernel expeller is known to be an important ingredient in the formulation of animal feeds and is considered to be excellent for ruminats such as cows, horses, poultry and sheep. This by-product contains magnesium, iron, zinc protein, high fibre, good level of residual oil and is high in palmitic acid.
Production of Palm kernel cake or palm kernel expeller:
The production of palm kernel cake involves several steps including:
Kernel pre-treatment (cleaning)
Grinding or size reduction
Flaking
Steam Conditioning
Screw Pressing
During the screw pressing stage, the raw palm kernel oil is diverted for oil clarification to remove solid impurities. The residual palm kernel cake is cooled and stored. There are three variations in the process of palm kernel oil extraction i.e. direct screw-pressing, partial pre-treatment, and complete pre-treatment.
Direct screw-pressing
Some mills crush the palm kernels directly in the presses without doing any pre-treatment on the seeds. Double pressing is usually done in such cases to ensure efficient oil extraction. The screw-presses used normally are less than 10 tonnes per unit per day.
Partial pre-treatment
Prior to screw pressing, the kernels are first broken down to smaller fragments by grinding. In some cases, cooking of kernels is also done.
Complete pre-treatment
Complete pre-treatment includes cleaning, grinding, flaking and steam conditioning before screw pressing the palm kernels. Plants with larger capacities choose complete pre-treatment.
Functions of Palm kernel expeller machines
To crush palm kernel for extracting oil and cake
To crush copra for extracting oil and cake
Advantages of Palm Kernel expeller machines
Maximize oil extraction from palm Kernel.
Low investment - easy to install.
High throughput Capacity.
Efficient with low operating cost and higher productivity.
Alloy steel with ultrasonically tested screw shaft.
Heavy duty bearings.
Low residual oil content in second press cake.
Reducing internal wear and tear.
Low power consumption per tonne.
For more information on palm kernel expeller machines, oil expellers, oil extraction process, oil refining machines, visit: http://www.oilmillmachinerysuppliers.com
I am Virendra Verma writing on Seed Processing Machinery from last few years on regular basis to aware about Industrial Oil Mill Machinery Tools & Equipments to web users and define how they are important & beneficials for us & what’s role they play in our machinery Industry.
