Pengaruh Kecepatan Putar dan Kadar Air Bahan terhadap Hasil Kinerja Alat Penggiling Jagung (Zea mays L.) Tipe Disc Mill

Abstract

Corn is one of the largest agricultural products in Indonesia which has an important role in the animal feed sector. Because of the importance of corn in the animal feed sector, a technology is needed that can carry out the corn processing process. One of the tools used for post-harvest corn processing is a corn grinder which is used to make corn into flour or ground corn. Therefore, research was conducted to determine the effect of tool rotation speed and the amount of moisture content of the processing material on the performance of the corn grinder. This research aims to obtain the best performance value of the tool in terms of effective tool capacity, yield, and percentage of material lost. The method used in this research is the Factorial Completely Randomized Design (CRD) method with two factors, namely variations in rotation speed and water content level of the processed material. The variation of rotation speed used in the tool is by testing the rotation speed of 3200 (rpm), 2800 (rpm), and 2100 (rpm), then for the moisture content level of the ingredients in the corn, namely 10%, 12%, and 14%. The results of the research showed that the effective capacity of the tool was greatest in the treatment variation at a rotational speed of 3200 rpm and a water content of 10%, namely 18.41 (kg/hour) and the lowest occurred at a rotational speed of 2100 (rpm) and a water content of 14%, namely 11.05 kg/hour. The greatest yield was found in the interaction of rotation speed 3200 (rpm) and 10% water content, namely 97.72%, while the lowest yield was in the interaction of rotation speed 2100 (rpm) and 10% water content, namely 94.77%. The largest percentage of lost material occurred in the interaction of rotation speed 2100 (rpm) and 14% water content, namely 5.22% and the lowest percentage of lost material occurred in the interaction of rotation speed 3200 (rpm) and 10% water content, namely 2.28 %.