Uji Jarak Ulir Pada Alat Pengempa Minyak Kemiri (Oil Press) Tipe Ulir

Abstract

JOSAFAT SIMANJUNTAK: Thread pitch test of oil press (screw type) supervised by SAIPUL BAHRI DAULAY and AINUN ROHANAH. Basicly, the oil press is designed for pressing the candlenut. This reasearch was on testing of thread pitch variaton of oil press which was aimed to measure the best thread pitch of candlenut oil press. This reasearch was conducted at agriculture engineering laboratory USU on August 2014 – January 2015 using non factorial randomized block design with three grades, i . e 1 cm, 2,5 cm, and 4 cm. Parameters observed were effective capacity, losses, and yield. The best grade for effective capacity and yield was P3 (pitch 4 cm) which produced 0,381 l/kg and 322 l/kg; and the best grade for losses was P2 (2,5 cm) which produced 29,733 %