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DEVELOPMENT OF GROUNDNUT OIL EXPELLING MACHINE

The need for new designs of Groundnut oil expeller is based on the cost and efficiency of the machine especially for the usage in small and medium size industries. It has to be cost effective and light weight to accommodate such demands. The existing Groundnut Oil Expellers in the market are too big and too expensive for these small medium size businesses to invest on. Other limitations are its maintenances aspect as well as its operations. Therefore, series of survey and research have been done to identify the needs and base on that, the Final Design and Specifications were synthesized. 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. The oil seeps through small openings that do not allow groundnut fibre solids to pass through. Afterward, the pressed groundnuts are formed into a hardened cake, which is removed from the machine. This machine will satisfy the demand for the small and medium size industries because of its design, functionality and price. The measurements of the performance also being analyze by calculating the design efficiency.