UJI KINERJA ALAT PENGGILING BIJI JAGUNG DISC MILL TIPE FFC 15 DI DESA WATUDAMBO KECAMATAN KAUDITAN KABUPATEN MINAHASA UTARA

Abstract

Research aimed to evaluate the performance of the FFC-15 type disc mill used for grinding dried corn kernels in Watudambo Village, Kauditan District, North Minahasa Regency. The performance assessment includes work capacity, milling yield, particle size distribution, moisture content changes, and fuel consumption. A quantitative method with direct observation was used, employing 30 kg of dried corn divided into three replications of 10 kg each. Results showed that the average work capacity of the machine was 45.9 kg/hour at a rotational speed of 1399 rpm. Milling yield ranged from 96.31 to 98.63%, with an average of 97.82%. The Fineness Modulus (FM) was 6.23, indicating predominantly coarse particle output with an average particle dimension of 0.309 mm. Moisture content decreased from 16% before milling to 14% after milling. The average fuel consumption was 1.34 L/hour, equivalent to 288.67 ml per 10 kg of corn. Overall, the FFC-15 disc mill performs efficiently for small-scale milling operations. Routine maintenance of discs, bearings, and V-belt components, as well as improvements in the sieving process, are recommended to enhance machine performance.

Keywords: Capacity, fuel consumption, yield, particle size distribution.