Optimization of Workstation Capacity using the Theory of Constraints Approach to Increase Production Output

Fadilla Umeida Putri, Enny Aryanny

Abstract


A manufacturing company in Surabaya that produces various metal-based products is facing bottleneck issues, particularly in the production of steel doors and fire doors, due to an imbalance in machine capacity and cycle time. This problem has led to an accumulation of semi-finished goods and a decline in production efficiency. To address this issue, this study applies the Theory of Constraints (TOC) to redesign production planning through five key stages. Based on Rough-Cut Capacity Planning (RCCP) calculations, bottlenecks were identified at the bending workstation (SK-2), assembly workstation (SK-3), and painting workstation (SK-5). To mitigate these constraints, an additional 7 hours of overtime was implemented at these three workstations from July to November 2024. This strategy successfully increased fire door production from 89 units with a throughput of Rp178,000,000 to 167 units with a throughput of Rp334,000,000, reflecting a growth of Rp156,000,000 (46.7%). These findings demonstrate that the proposed approach is effective in optimizing throughput and maximizing production capacity utilization.

Keywords


Bottleneck, Fire Door, Rough Cut Capacity Planning, Steel Door, Theory of Constraints

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References


N. P. D. Arwini, “Roti, Pemilihan Bahan dan Proses Pembuatan,” J. Ilm. Vastuwidya, vol. 4, no. 1, pp. 33–40, 2021, doi: 10.47532/jiv.v4i1.249.

A. Sugiatna, “Analisis Perencanaan Kapasitas Produksi dengan menggunakan Metoda Rought Cut Capacity Planning Pendekatan CPOF di PT. XYZ,” Sist. J. Ilm. Nas. Bid. Ilmu Tek., vol. 9, no. 02, pp. 28–32, 2021, doi: 10.53580/sistemik.v9i02.61.

J. D. Giu, S. Junus, and Y. Arifin, “Optimalisasi Kapasitas Produksi Tepung Kelapa dengan metode Rough-Cut Capacity Planning,” J. Teknol. Pertan. Gorontalo, vol. 7, no. 1, pp. 41–50, 2022, doi: 10.30869/jtpg.v7i1.906.

H. T. Anaam K I and P. A. Y. W. Pranata R Y, Abdillah h, “Pengaruh Trend Otomasi dalam Dunia Manufaktur dan Industri,” Vocat. Educ. Natl. Semin., vol. 1, no. 1, pp. 46–50, 2022, https://jurnal.untirta.ac.id/index.php/VENS/article/view/15784.

S. Kuswandi, "Perancangan Teknik Industri", Global Eksekutif Teknologi, 2022.

R. Ervil and Z. N. Yulanda, “Identifikasi Kendala pada Proses Produksi dengan menggunakan Theory of Constrain (TOC) dalam mengoptimalkan Kapasitas Produksi PDAM Gunung Pangilun,” J. Sains dan Teknol. J. Keilmuan dan Apl. Teknol. Ind., vol. 20, no. 2, p. 162, 2020, doi: 10.36275/stsp.v20i2.295.

E. Riadi and A. Suryati, “Proses Penjadwalan Jangka Pendek dengan Theory Constraint Asas Prioritas Bahan dan Alat yang diproduksi dalam Kegiatan Operasi Kamar Bedah di Rumah Sakit Umum Pekerja,” Bussman J. Indones. J. Bus. Manag., vol. 3, no. 2, pp. 578–587, 2023, [Online]. Available: http://bussman.gapenas-publisher.org/index.php/home/article/view/153/164

R. Samosir and Y. Setiawannie, “Analisa Penerapan Metode Theory of Constraint untuk mengoptimalkan Stasiun Kerja di PT. XYZ,” Jurnal Teknik Dan Industri, vol. 1, no. 1, pp. 92–104, 2023.

A. Basuki and A. D. Cahyani, “Metode Line Balancing Heuristik untuk Penyeleseian Masalah terjadinya Bottleneck pada Lintasan Produksi,” Rekayasa, vol. 13, no. 3, pp. 317–323, 2020, doi: 10.21107/rekayasa.v13i3.19765.

A. A. Ahadi, “Penjadwalan Produksi dengan menggunakan Theory of Constraint pada Lini Produksi Tiang Pancang Bulat di PT Wijaya Karya Beton Tbk,” SIJIE Sci. J. Ind. Eng., vol. 3, no. 2, pp. 5–8, 2022, [Online]. Available: https://www.jim.unindra.ac.id/index.php/sijie/article/view/302%0Ahttps://www.jim.unindra.ac.id/index.php/sijie/article/download/302/1281

A. Bakhtiar, F. N. Ayu, D. Nurkertamanda, H. Suliantoro, and S. Hartini, “Penerapan Drum-Buffer-Rope pada Stasiun Bottleneck PT. Phapros Semarang dengan Theory of Constraint,” Prosiding Industrial Engineering Conference (IEC), pp. 70–76, 2020, http://eprints.upnyk.ac.id/id/eprint/24000.

T. Hidayat, R. B. Ulum, and A. Widarman, “Rencanaan Kapasitas Produksi Pupuk dengan menggunakan Metode Rough Cut Capacity Planning (RCCP) pada PT. Pupuk Kujang,” J. Ilm. Multidisiplin, vol. 2, no. 04, pp. 153–161, 2023, doi: 10.56127/jukim.v2i04.816.

A. Y. Pradana and F. Pulansari, “Analisis Pengukuran Waktu Kerja dengan Stopwatch Time Study untuk meningkatkan Target Produksi di PT. XYZ,” Juminten, vol. 2, no. 1, pp. 13–24, 2021, doi: 10.33005/juminten.v2i1.217.

B. I. Putra and R. B. Jakaria, "Perancangan Sistem Kerja". UMSIDA Press, 2020.

E. Mahawati, I. Yuniwati, R. Ferinia, P. P. Rahayu, T. Fani, A. P. Sari, R. A. Setijaningsih, Q. Fitriyatinur, A. P. Sesilia, I. Mayasari, I. K. Dewi, and S. Bahri, "Analisis Beban Kerja dan Produktivitas Kerja", Yayasan Kita Menulis. 2021.




DOI: https://doi.org/10.32520/stmsi.v14i2.5033

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