Development of an Oil Extraction Machine for Cashew Nut Shell

An Oil Extraction Machine was developed for extracting oil from Cashew Nut Shell. The extracting unit consists of an auger with decreasing pitches. Two different samples of cashew nut shell were used: old cashew nut shells that have been decorticated more than two months and new shells that have been decorticated less than two months. After the performance test, the machine was tested at different auger speeds. Results showed that the designed machine was able to extract oil from Cashew Nut Shell with a good performance: Extraction efficiency of over 80% was obtained and the machine has extraction rate of 38.66 kg/hr. of oil and throughput capacity of 100.33 kg/hr.