Nasywa Saskia Fahrisa, . (2025) PENGENDALIAN KUALITAS UNTUK MEMINIMALISASI CACAT PRODUK MSP (MELT STATE POLYCONDENSATION) DENGAN METODE SIX SIGMA PADA PT XYZ. Skripsi thesis, Universitas Pembangunan Nasional Veteran Jakarta.
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Abstract
The problem identified in the MSP (Melt State Polycondensation) production process at PT XYZ is the presence of product defects exceeding the company’s quality tolerance limit of 2.5%. These defects lead to decreased product quality and reduced production efficiency. This study aims to identify the dominant types of defects and control product quality using the Six Sigma method through the DMAIC (Define, Measure, Analyze, Improve, Control) approach. Based on the analysis, three dominant defect types were found Slight Diagonal Chip (49.47%), Double Chip (35.4%), and Abnormal Chip (12.26%). In the Improve stage, corrective actions were proposed using the Kaizen approach, including the development of work instructions for the pelletizing process, inspection of the electrical and stabilizer systems, preparation of a preventive maintenance checklist for the pelletizer machine, and the design of a routine operator inspection checklist. After implementation, the defect rate decreased from 0.89% to 0.78%, the DPMO value dropped from 1,481.2 to 1,297.761, and the sigma level improved from 4.89 to 4.93. These results show that applying the Six Sigma method systematically is effective in reducing defects and maintaining production process stability. This study also contributes to minimizing waste, preventing machine failures, and improving operator precision in quality control.
| Item Type: | Thesis (Skripsi) |
|---|---|
| Additional Information: | [No Panggil: 2110312082] [Pembimbing: Nur Fajriah] [Penguji 1: Santika Sari] [Penguji 2: Muhamad As'adi] |
| Uncontrolled Keywords: | Six Sigma, DMAIC, MSP, Kaizen, Product Quality |
| Subjects: | H Social Sciences > HD Industries. Land use. Labor H Social Sciences > HD Industries. Land use. Labor > HD28 Management. Industrial Management T Technology > TA Engineering (General). Civil engineering (General) T Technology > TP Chemical technology T Technology > TS Manufactures |
| Divisions: | Fakultas Teknik > Program Studi Teknik Industri (S1) |
| Depositing User: | NASYWA SASKIA FAHRISA |
| Date Deposited: | 04 Aug 2025 04:40 |
| Last Modified: | 04 Aug 2025 04:40 |
| URI: | http://repository.upnvj.ac.id/id/eprint/39379 |
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