Ogusina, B. S.Koya, Olufemi. A.Adeosun, O. O.2019-07-252019-07-252008-10-13Ogusina, B. S., Koya, O. A., & Adeosun, O. O. (2008). A table mounted device for cracking dika nut (Irvingia gabonensis). Agricultural Engineering International: CIGR Journal.http://repository.elizadeuniversity.edu.ng/handle/20.500.12398/408A simply designed machine for cracking dika nut was fabricated. The nut is fed by hand inbetween a toggle mechanism comprising of the slider and a fixed block. Fracture mechanism was based on the deformation characteristics of dried dika nut under uni-axial compression. When actuated, the slider compresses the nutshell to failure along its line of symmetry. The experimental machine gave 100% cracking efficiency but with 24% kernel breakage in cracking sun-dried dika nut at 6.6% moisture content (w.b). The machine provides a viable and effective technique for safe dika kernel extraction.enDika nutCracking deviceMachine designkernel extractionCompressionNigeriaArticle