Analisis Quality Control pada Produksi Karung Semen dengan Menggunakan Metode SQC (Statistical Quality Control) & RCA (Root Cause Analysis) di PT XYZ
DOI:
https://doi.org/10.31004/jutin.v9i1.54121Keywords:
Statistical Quality Control, Root Cause Analysis, Control Chart, CementAbstract
PT XYZ as a cement sack manufacturer still faces product defect issues that have the potential to reduce efficiency and quality. This study aims to analyze the level of defects, the stability of the production process, and identify the root causes of defects using Statistical Quality Control (SQC) and Root Cause Analysis (RCA) methods. The data analyzed came from the period January–June 2025 with a total production of 3,355,452 units and the number of defects was 32,025 units (0.95%). The results of the Pareto analysis showed that the keperet defect had the largest contribution of 43.55% (13,946 units), followed by the folded patch 11.98% and the oblique triangle 11.38%. The P control chart showed a CL value of 0.0061 with all points between the UCL and LCL, while the C control chart produced a C̄ of 5,338 which was still within the statistical control limits. The RCA analysis identified human, machine, material, method, and environmental factors as the main causes of defects. Improvements focused on SOP consistency, machine maintenance, and material control.References
Chusnah, A. U., & Cahyana, A. S. (2024). Pengendalian Kualitas Produk Griller Menggunakan Failure Mode Effect and Analysis (FMEA) dan Root Cause Analysis (RCA). Jurnal Optimalisasi, 10(1), 156-166.
Huda, F., & Apsari, A. E. (2024). Pengukuran Produktivitas dalam Meningkatkan Hasil Produksi menggunakan Metode Objective Matrix dan Pendekatan Root Cause Analysis. Jurnal Ilmiah Research Student, 1(4), 323-328. https://doi.org/10.61722/jirs.v1i4.1088
Imel, G., & Berutu, N. K. (2025, July). Analisis Loading Rate PKE (Palm Kernel Expeller) pada PT. Sari Dumai Sejati Menggunakan RCA (Root Cause Analysis). In Talenta Conference Series: Energy and Engineering (EE) (Vol. 8, No. 1, pp. 847-855). https://doi.org/10.32734/ee.v8i1.2651
Lestari, A. D., & Widajanti, E. (2024). Pengendalian Kualitas Produk dengan Metode Statistical Quality Control untuk Mengurangi Produk Rusak pada UMKM Gethuk Anyar di Ngawi. Jurnal Rimba: Riset Ilmu Manajemen Bisnis Dan Akuntansi, 2(3), 328-355. https://doi.org/10.61132/rimba.v2i3.1164
Ramadhani, M. R., Widodo, E. M., & Rosyidi, M. I. (2024). Analysis of UMKM Product Quality Control Using the Statistical Quality Control (SQC) Method. Borobudur Engineering Review, 4(02), 26-45. https://doi.org/10.31603/benr.v4i02.12692
Saefullah, A., Fadli, A., Agustina, I., & Abas, F. (2023). Implementasi prinsip pareto dan penentuan biaya usaha Seblak Naha Rindu. Jurnal Media Wahana Ekonomika, 20(1), 1-13. https://doi.org/10.31851/jmwe.v20i1.11077
Siallagan, S., & Manik, D. S. (2024). Analisis Metode Pengendalian Kualitas Produk sebagai Pencegahan Kegagalan Produksi: A Literature Review. Journal of Industrial and Manufacture Engineering, 8(2), 145-155. DOI : 10.31289/jime.v8i2.11403
Wijaya, H., Arrofi, R., & Wirawati, S. M. (2022). Analisis Pengendalian Kualitas Beras dengan Menggunakan Metode Statistical Quality Control di UD. Penggilingan Beras Putri Jaya. Jurnal Industri dan Teknologi Terpadu, 5(1), 131-142.
Widhianingsih, W., & Wahyuni, H. C. (2024). Strategi Peningkatan Kualitas Sepatu dengan Metode Failure Mode and Effect Analysis, Grey Relational Analysis, dan Root Cause Analysis. Innovative Technologica: Methodical Research Journal, 3(3), 17-17. https://doi.org/10.47134/innovative.v3i3.112
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2026 Ringgit Pangastuti, Muhammad Tutuk Safirin
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
