Groundnut oil expelling machine is an important device for oil recovery from groundnut seed in a roller mill, direct firing of barrel and pressing with an engine driven oil expeller. Expeller use a horizontal rotating metal screw, which feeds oil-bearing seeds into a barrel shaped outer casing with perforated walls according to Maul et al (2011).
What is a groundnut oil expeller?
The Groundnut Oil Expeller is a screw type machine, which presses groundnut through a barrel-like cavity. Raw material (groundnut) enters one side of the press and by product (cake) exit the other side. The machine uses friction and continuous pressure from the screw drives to move and compress the groundnut.
Is a groundnut oil machine suitable for commercial use?
At a regulated heater temperature of 100oC the quality of the oil and groundnut cake was pleasant and edible. Based on the efficiency and the quality of the oil produced, this machine was recommended suitable for the production of groundnut oil for commercial use.
How does a groundnut oil extraction machine work?
A mechanical means of extracting oil was designed, constructed with locally available materials and tested for groundnut oil extraction. The machine consists of the frame, hopper, gear reduction unit and the power shaft. It was powered by a 1 hp three-phase electric motor.