Analisis Penyebab Reject Part A Pada Proses Produksi Menggunakan Seven Tools di PT XYZ

Tika Wulan Sari; Fahriza Nurul Azizah

doi:10.30998/string.v10i1.26196

Analisis Penyebab Reject Part A Pada Proses Produksi Menggunakan Seven Tools di PT XYZ

Tika Wulan Sari^(1*), Fahriza Nurul Azizah⁽²⁾

(1)
(2) Universitas Singaperbangsa Karawang
(*) Corresponding Author

Abstract

In the manufacturing industry, product quality is the main benchmark that determines the competitiveness of a company. PT XYZ Industri as one of the main suppliers of national automotive components, faces the problem of high numbers of reject products, especially in the Panel Wheel House part in the E-Line production line. This study aims to analyze the main causes of these reject products and provide suggestions for improvement through the application of the Seven Tools method as a quality control tool. The study was conducted using a case study approach using production data from January to March 2024. Data collection methods include direct observation, interviews with related parties, and documentation studies of daily production reports. There are two dominant types of defects in the Pnl Wheel House part, namely neck and crack, which are identified through the Pareto Chart and Check Sheet. Furthermore, Fishbone Diagram analysis is used to determine the root of the problem involving machine, method, and material factors. The results of the study show that neck defects dominate with a proportion of 98%, which is caused by unstable cushion pressure and die design that is prone to causing imperfect pulling in the drawing process. The application of the Control Chart shows process inconsistencies, which are then corrected by revising the control limits. Improvement strategies are formulated using the 5W+1H method, such as standardization of cushion pressure and routine inspection of die conditions and raw material quality. By implementing this approach, PT XYZ can significantly improve production quality, reduce reject rates, and increase efficiency and customer satisfaction. This study proves that Seven Tools is an effective method in identifying and handling quality problems in the manufacturing process

Keywords

Fishbone Diagram; Pareto Chart; Quality Control; Seven Tools

Full Text:

PDF

References

Deni H, "Pengendalian Kualitas Dengan Menggunakan Metode Seven Tools Pada PT X," Jurnal Ekonomi, Manajemen dan Perbankan, vol. 6, no. 3, pp. 1339-143, 2022.

L Permono, "Penerapan Metode Seven Tools dan New Seven Tools Untuk Pengendalian Kualitas Produk (Studi Kasus Pabrik Gula Kebon Agung Malang)," Jurnal Valtech (Jurnal Mahasiswa Teknik Industri), vol. 5, no. 1, pp. 58-65, 2022.

E. Haryanto, "Analisis Pengendalian Kualitas Produk Bos Rotor Pada Proses Mesin CNC Lathe Dengan Metode Seven Tools," Jurnal Teknik: Universitas Muhammadiyah Tangerang, vol. 8, no. 1, pp. 69-77, 2019.

Merjani A, "Analisa Tingkat Kecacatan Untuk Mengurangi Defect di Produksi Batako dengan Metode Seven Tools dan PDCA," Profisiensi: Jurnal Program Teknik Industri, vol. 8, no. 2, pp. 188-196, 2020.

I. Radianza, "Analisa Pengendalian Kualitas Produksi dengan Menggunakan Metode Seven Tools Quality Di Pt. Borsya Cipta Communica," JITSA: Jurnal Industri & Teknologi Samawa, vol. 1, no. 1, pp. 17-21, 2020.

N.L Ayu, "Pengendalian Kualitas Produk Tekstil Menggunakan Metoda DMAIC," Jurnal Ecodemica: Jurnal Ekonomi Manajemen dan Bisnis, vol. 5, no. 1, pp. 1-10, 2023.

F. Nofal , "Analisis Pengendalian Kualitas dengan Metode Seven Tools Dan Kaizen Dalam Upaya Mengurangi Tingkat Kecacatan Produk," Jurnal Teknologi dan Manajemen Industri Terapan, vol. 2, no. 2, pp. 53-62, 2023.

S. W. H. Sutiyono, "Pengendalian Kualitas Dengan Menggunakan Metode Seven Tools untuk Meningkatkan Produktivitas di PT Jogjatex," SAINTEK: Jurnal Sains dan Teknologi, vol. 2, no. 2, pp. 45-57, 2023.

Y. D. A. Salmaa Putri Atmaja, "Penerapan Metode Seven Tools dalam Pengendalian Kualitas Produk," Jurnal Sistem Informasi & Ilmu Komputer, vol. 2, no. 1, pp. 112-120, 2024.

M. F. Safrizal, "Peranan Statistical Quality Control (SQC) dalam Pengendalian Kualitas: Studi Literatur," JMAS: Jurnal Mahasiswa Akuntansi Samudra, vol. 4, no. 3, pp. 125-138, 2023.

N. I. M. Fuad, "Pengaruh Capital Adequacy Ratio, Loan to Deposit Ratio dan Non Performing Loan terhadap Kinerja Keuangan pada Sektor Perbankan yang Terdaftar di Bursa Efek Indonesia," JMAS: Jurnal Mahasiswa Akuntansi Samudra, vol. 1, no. 1, pp. 45-64, 2020.

R. I. Saidatuningtyas, "Analisis Pengendalian Kualitas ProdKonstruksi Baja untuk Jembatan Menggunakan Metode Six Sigma DMAIC di Pabrik Fabrikasi Baja," Jurnal Teknologi dan Manajemen, vol. 21, no. 2, pp. 75-84, 2023.

A. Handoko, "Implementasi Pengendalian Kualitas Dengan Menggunakan Pendekatan Pdca Dan Seven Tools Pada PT Rosandex Putra Perkasa Di Surabaya," Jurnal Ilmiah Mahasiswa Universitas Surabaya, vol. 6, no. 2, pp. 1329-1347, 2018.

S. Agustian, "Analisis Kualitas Kapur Menggunakan Metode Quality Control Circle dan Seven Tools di PT. Timbul Persada," Juminten: Jurnal Manajemen Industri dan Teknologi , vol. 1, no. 5, pp. 121-132, 2020.

A. W. A. Marlina, "Analisis Pengendalian Kualitas Dengan Menggunakan Metode Seven Tools Di Usaha Gula Aren Saka Halaban Sumatera Barat," Integrasi Jurnal Ilmiah Teknik Industri, vol. 9, no. 1, pp. 1-8, 2024.

A. E. N. Agung, "Analisis Pengendalian Kualitas Part Cap Front Dengan Metode Seven Tools Di Pt Kmil," STRING (Satuan Tulisan Riset dan Inovasi Teknologi), vol. 9, no. 3, pp. 261-272, 2025.

K. Damayanti, "Pengendalian Kualitas Di Mebel PT. Jaya Abadi Dengan Menggunakan Metode Seven Tools," Bulletin of Applied Industrial Engineering Theory, p. 3(1), 2022.

DOI: http://dx.doi.org/10.30998/string.v10i1.26196