Lean six sigma approach to increase process cycle efficiency in palm oil processing at PT. X

Riana Puspita; Yudi Daeng Polewangi; Muhammad Fazri; Refiza; Zufri Hasrudy Siregar

doi:10.54123/vorteks.v5i1.357

Authors

Riana Puspita Industrial Engineering, Faculty of Engineering, Universitas Medan Area
Yudi Daeng Polewangi Industrial Engineering, Faculty of Engineering, Universitas Medan Area
Muhammad Fazri Industrial Engineering, Faculty of Engineering, Universitas Al Azhar Medan
Refiza Industrial Engineering, Faculty of Engineering, Universitas Al-Azhar Medan
Zufri Hasrudy Siregar Mechanical Engineering, Faculty of Engineering, Universitas Al Azhar Medan

DOI:

https://doi.org/10.54123/vorteks.v5i1.357

Keywords:

Lean Six Sigma, palm oil industry, production efficiency, DMAIC, process improvement, waste reduction

Abstract

The Indonesian palm oil industry, a global leader in production, faces increasing challenges in maintaining efficiency and quality. This study aims to apply the Lean Six Sigma methodology to enhance production processes by integrating Lean Manufacturing principles with the systematic, data-driven approach of Six Sigma. Using the Define-Measure-Analyze-Improve-Control (DMAIC) framework, the research identifies and mitigates inefficiencies in key stations of a palm oil mill. Novelty lies in the application of Lean Six Sigma to the palm oil industry, demonstrating significant improvements: a 16% increase in process cycle efficiency, a reduction of 70.5 kg in daily fresh fruit bunch (FFB) losses, and a decrease in associated costs by IDR 176,750 per day. The findings underscore the potential for continuous improvement in the industry through the systematic application of Lean Six Sigma.