In order to resuscitate soybean production and post-harvest processing, especially in terms of threshing, there is a need to develop an affordable threshing machine, which will reduce drudgery associated with manual soybean threshing. Soybean thresher was fabricated and evaluated at the Institute of Agricultural Research and Training (IAR&T), Apata, Ibadan. The machine component parts includes: hopper, threshing unit, shaker, cleaning unit and the seed outlet; all working together to achieve the main objective of threshing and cleaning. TGX1835-10E variety was used for the evaluation because of its high resistance to pests, rust and pustules. The final moisture content of the sample used was about 15%. The sample was weighed and introduced to the machine. The parameters evaluated includes: Moisture content, threshing efficiency, cleaning efficiency, machine capacity and speed. The threshing efficiency and capacity are: 74% and 65.9 kg/h, respectively. All materials used were sourced locally, which makes the cost of production of the machine to be considerably cheaper than the imported soybean thresher.
Key words: Construction, efficiency, evaluation, soybean, threshing.
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