Analisis Variasi Kecepatan Putar (Rpm) pada Alat Pemecah dan Pemisah Biji dari Cangkang Kemiri (Aleurites Moluccana L )

Abstract

Cracking candlenuts started from a manual method which was then applied to a machine with almost the same movement constantly and continuously. Breaking candlenut shells using a machine is more effective than manually. Rotation speed (rpm) is one of the factors that can influence the tool performance process. This research aims to test the rotation speed of the tool for breaking and separating nuts from candlenut shells on the influence of the effective capacity parameters of the tool, percentage of whole seeds, percentage of halved seeds, percentage of crushed seeds, percentage of sticky seeds, percentage of material left in the tool, fuel consumption , and economic analysis. This research used a non-factorial completely randomized design with three speed treatments, namely P1 at a rotational speed of 2300 rpm, P2 at a rotational speed of 2500 rpm, and P3 at a rotational speed of 2700 rpm. The largest effective capacity of the equipment was in treatment P3 at 88.707 kg/hour, the largest percentage of whole seeds in treatment P2 was 21.04%, the largest percentage of halved seeds was in treatment P1 at 16%, the largest percentage of damaged seeds was in treatment P3 at 19,32 %, the largest percentage of material left in the tools in treatment P3 was 33.66%, and the largest fuel consumption was in treatment P3 at 1.42 l/hour.