Yuanda, Tiara Anugerah (2026) ANALISIS PEMBOROSAN PADA ALIRAN PROSES PRODUKSI DENGAN PENDEKATAN LEAN MANUFACTURING MENGGUNAKAN VALUE STREAM MAPPING (VSM) DAN ROOT CAUSE ANALYSIS (RCA) DI PT XYZ. Undergraduate thesis, Universitas Pembangunan Nasional “Veteran” Jawa Timur.
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Abstract
PT XYZ is a manufacturing company operating in the cosmetics industry, particularly in the personal care sector, especially hair care products. One of its main products is hair coloring shampoo. In its production process, several issues are still encountered, such as high waiting time between processes, repetitive work activities, and nonconforming production results, which cause the production flow to become less efficient and extend the lead time. This study aims to identify and analyze waste using a lean manufacturing approach through the Value Stream Mapping (VSM) method. The analysis results indicate that the most dominant wastes include over production, unnecessary inventory, waiting, unnecessary motion, defect, excessive transportation, and over processing. Before improvements were implemented, the total lead time was recorded at 897 minutes with a Process Cycle Efficiency (PCE) value of 28.09%. Furthermore, root cause analysis was conducted using fishbone diagrams and the 5 Whys method to determine the main factors causing waste. Based on the analysis results, several improvement proposals were provided, such as improving coordination between processes, simplifying work activities, reducing repetitive activities, and enhancing quality control. After the improvements were implemented, the lead time decreased to 673 minutes and the PCE value increased to 37.44%, indicating an improvement in production process efficiency. Therefore, the implementation of lean manufacturing was able to reduce waste and improve the effectiveness of production performance at PT XYZ.
| Item Type: | Thesis (Undergraduate) | ||||||||
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| Subjects: | T Technology > T Technology (General) > T55.4-60.8 Industrial engineering. Management engineering | ||||||||
| Depositing User: | TIARA ANUGERAH YUANDA | ||||||||
| Date Deposited: | 26 May 2026 07:52 | ||||||||
| Last Modified: | 26 May 2026 07:52 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/52827 |
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