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All Journal Jurnal Teknik Industri Terintegrasi (JUTIN) Jurnal Abadimas Gorontalo Jurnal Kalibrasi Jurnal Pengabdian Masyarakat Bangsa Journal of Engineering Science and Technology Management Kohesi: Jurnal Sains dan Teknologi
Rahmad, Nuraini
Program Studi Teknik Industri, Institut Teknologi Perkebunan Pelalawan Indonesia
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Journal : Journal of Engineering Science and Technology Management

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Failure Analysis of Sludge Centrifuge Separator Machine Using Root Cause Analysis (RCA) at PT. X Nuraini Rahmad; Arsi, Fadli; Oktaviya, Trisna Dwi
Journal of Engineering Science and Technology Management (JES-TM) Vol. 5 No. 1 (2025): Maret 2025
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v5i1.232

Abstract

The palm oil processing industry is expanding rapidly, as seen from the increasing land conversion for oil palm plantations. One critical machine in the production process is the sludge centrifuge separator, which functions to separate oil from sludge. At PT. X, a breakdown in this machine disrupted production and reduced the effectiveness of oil separation. This study aims to identify the causes of damage or failure in the sludge centrifuge separator machine. The research employs Root Cause Analysis (RCA) with a fishbone diagram as the analytical tool and proposes improvements using the 5W+1H approach.The results show that damage is caused by several factors. Human factors include operator negligence, lack of discipline, and inadequate supervision. Machine-related issues involve poor maintenance, leaks, insufficient inspections, bearing wear, and excessive friction. Material factors include the entry of metal pieces and small stones into the machine. Method-related problems stem from non-compliance with SOPs and insufficient training. Environmental factors include damp conditions, poor air circulation, oil spills, noise, and an unclean production floor.This research highlights the importance of regular maintenance, improved training, strict SOP implementation, and better workplace management to minimize machine failure and ensure optimal.
Analysis of Consumers’ Willingness to Pay for Ginger Sugar Herbal Drinks and Its Determining Factors Ainun Niha , Aevita; Rahmad, Nuraini
Journal of Engineering Science and Technology Management (JES-TM) Vol. 5 No. 2 (2025): September 2025
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v5i2.375

Abstract

Increasing competition in the herbal beverage industry has prompted MSMEs producing ginger sugar herbal beverages to improve product quality. The implementation of this measure is expected to increase production costs and selling prices, necessitating an analysis of consumer willingness to pay. This study aims to determine the price limit that consumers are willing to pay and the factors that influence Willingness to Pay. This study involved 100 respondents selected based on purposive sampling. The analysis methods used in this study include descriptive analysis, Contingent Valuation Method (CVM), and Logistic Regression. The results show that consumers are predominantly women, aged 17–35 years, employed as students, with a monthly income in the range of IDR 2,000,001 – IDR 4,000,000, a bachelor's degree or equivalent, a consumption pattern of 1–2 times per week, and a reason for consumption that is a healthy lifestyle. The maximum average Willingness to Pay value is IDR 19,305.56, which is 37.9% higher than the current price of IDR 14,000 per package. The analysis shows that consumer characteristics simultaneously have a significant effect on Willingness to Pay, with the dominant factors including gender, consumption pattern, and reason for consumption.
Co-Authors Ainun Niha , Aevita Arief Fazlul Rahman, Arief Fazlul Arsi, Fadli Fatliana, Anggun Nindy Hatala, Muhammad Hudzaly Herman, Winda Krisnasari, Dea Dita Kurnia, Anggi Rada Laila, Widya MARDIKA, RISKI ARIF Nasirly, Riri - Nasution, Fachri Ibrahim Oktaviya, Trisna Dwi Putra, Azhar Syafiq Qolby, Rohatul Ramadhani, Siti Dinar Rezki Salma, Melati Tengku Indira Larasati Utomo, Muhammad Fitri Budi Walenna, A. M. Adhitya A. Widya Laila