JRSI (Jurnal Rekayasa Sistem dan Industri)
Vol. 13 No. 01 (2026): Jurnal Rekayasa Sistem & Industri

Performance Evaluation of the Pressing Process to Improve Electrical Energy Efficiency at PT ISM Bogasari Flour Mills Surabaya

Anggara Adji Prananta (Universitas 17 Agustus 1945 Surabaya, Indonesia)
Handy Febri Satoto (Universitas 17 Agustus 1945 Surabaya, Indonesia)



Article Info

Publish Date
30 Jun 2026

Abstract

This study aims to evaluate the performance of the pressing process as an effort to improve electrical energy efficiency in the Pelletizing Division of PT ISM Bogasari Flour Mills Surabaya. The research problem is based on the unachieved Key Performance Indicator (KPI) target for the electrical energy consumption ratio of 17.5 kWh/ton, where the actual consumption in 2024 reached 18.705 kWh/ton. The study employs the Objective Matrix (OMAX) method to measure productivity levels based on several performance indicators covering labor, machinery, raw materials, and electrical energy. Research data were obtained from operational production data for the period of July to December 2024. The analysis results indicate that the pressing process accounts for the largest share of energy consumption at 81.23% of total electrical energy waste in the pelletizing process. The implementation of a corrective action in the form of a reprocess raw material pathway relayout was proven effective in improving press machine work effectiveness and reducing electrical energy consumption. The average OMAX productivity increased from 5.10 to 5.34, while the average electrical energy consumption decreased from 18.80 kWh/ton to 16.12 kWh/ton. Furthermore, the company's electrical energy consumption KPI target was successfully achieved following the implementation of the improvement.

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Journal Info

Abbrev

jrsi

Publisher

Subject

Computer Science & IT Control & Systems Engineering Engineering Industrial & Manufacturing Engineering

Description

Jurnal Rekayasa Sistem dan Industri (JRSI) or Journal of System and Industrial Engineering is a peer-reviewed and open-access scientific journal managed by the Faculty of Industrial Engineering, Telkom University. JRSI publishes scholarly articles originating from: Research findings,Conceptual ...