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Evaluation of a Locust Beans Seed Dehulling Machine for Small Scale Farmers

A locust bean dehulling machine was fabricated and evaluated using locally available materials. The machine performs dual operations of removing the seed coats and cleaning. Components of the machine include the frame, hopper, dehulling chamber, water container, discharge outlets, set of gears and bearings in operation. In operation, locust beans seeds introduced via the hopper moved to the auger which separates the soft pulp and conveys the material into the dehulling chamber. The seeds were washed in the dehulling chamber while the coat (residual waste) passes through the sieve into the water trough where it was discharged through the waste outlet. Throughput capacity, output capacity, recovery percentage and cleaning efficiency were 264.0kg/hr, 98.48%, and 98.75%, respectively. This machine may find applications in the processing of locust beans.