Rancang Bangun Alat Penggiling Biji Kopi Tipe Flat Burr Mill

Abstract

SAMUEL HAPOSAN NAPITUPULU: Design of flat burr type coffee bean grinder mill , supervised by SAIPUL BAHRI DAULAY and ADIAN RINDANG. Milling is done to reduce size or to powder food material into a certain level of refinement to be more easily processed into other products. Grinding coffee beans aims to reduce size the beans into coffee powder with a certain subtlety to be easily brewed and gives the sensation of taste and aroma that is more optimal. The aims of the was to design, build and test coffee bean grinder flat burr type mill on robusta coffee. Observed parameters were the effective capacity of the equipment, the percentage of losses materials, and economic analysis. The results showed that the effective capacity of the equipment was 5.00 kg/hour for robusta coffee. Losses robusta coffee was 1.112%. Economic Analysis was Rp. 1.074,25/kg, the BEP was 2.748,91 kg/year for coffee robusta. The NPV 16% was Rp. 6.147.021,25 and the NPV 20% was Rp. 5.397.751,98. The IRR was 52,81 %.