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All Journal Jurnal InTent: Jurnal Industri dan Teknologi Terpadu
Zakaria, Tatan Zakaria
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Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering

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USULAN PENERAPAN TOTAL PRODUCTIVE MAINTENANCE (TPM) PADA MESIN CONTINUOUS PICKLING LINE (CPL) DI PT. KRAKATAU STEEL (PERSERO) TBK Juniarti, Anita Dyah; Zakaria, Tatan Zakaria; Prasetya, Muhammad Andika
Jurnal Intent: Jurnal Industri dan Teknologi Terpadu Vol 6 No 2 (2023): INDUSTRIAL
Publisher : Prodi Teknik Industri, Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47080/intent.v6i2.3228

Abstract

PT. Krakatau Steel (Persero) Tbk, menjadi salah satu produsen baja di Indonesia. Salah satu produknya adalah Cold Rolled Coil (CRC). Cold Rolled Coil tersebut harus melalui proses pencucian pada Continuous Pickling Line (CPL). Untuk mengatasi hal tersebut perlu diterapkan Total Productive Maintenance (TPM) yang bertujuan untuk meningkatkan efisiensi serta menggunakan teknik Overall Equipment Effectiveness (OEE) untuk mengukur kinerja mesin, dan untuk mencari penyebab ketidakefektifan mesin dilakukan perhitungan Six Big Losses. Berdasarkan perhitungan Overall Equipment Effectiveness di Continuous Pickling Line (CPL) pada tahun 2021 sebesar 32,75 %. Nilai OEE tersebut dipengaruhi oleh kerugian dari analisa Six Big Losses dan dibuatkan Diagram Pareto untuk menjadi acuan perbaikan. Kerugian terbesar adalah Reduce Speed Losses 69,10 % dan Equipment Failure Losses 19,66 %. Lalu dibuatkan Diagram Fishbone untuk disusun rancangan perbaikan dengan 5W+1H dan hasilnya terdapat 14 usulan perbaikan Reduce Speed Losses dan 12 usulan perbaikan Equipment Failure Losses.
UPAYA MENURUNKAN BREAKDOWN PADA PERALATAN CHAIN GRATE BOILER DENGAN KOMBINASI METODE FMEA DAN FTAPT. ANGLP Juniarti, Anita Dyah; Zakaria, Tatan Zakaria; Saefudin, Saefudin Saefudin
Jurnal Intent: Jurnal Industri dan Teknologi Terpadu Vol. 8 No. 1 (2025): INDUSTRIAL
Publisher : Prodi Teknik Industri, Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47080/vge23310

Abstract

Chain Grate Boiler is a vital production engine driver in a factory environment, steam boilers are highly expected for their performance and reliability. Based on history in 2018-2021 boilers in the power plant division experienced an increase in damage or breakdown from the previous year as much as 16 times. Components in chain grate boilers such as chain grate, electric motors, slage conveyors and steam pipelines on the preheater and superheater lines, the main problem of this research is how to reduce the breakdown of Chain Grate Boiler equipment, how to repair and maintain it by analyzing using the FMEA and FTA methods that aims to determine the highest damage value or Risk Priority Number. Based on the results of the analysis, it was found that the highest value of damage to the chain grate boiler equipment was in the chain grate part which produced an RPN value of 486 points which was the highest value of the other equipment analyzed. Furthermore, to find out the root of the problem using the FTA method where four problems were found, namely: understanding of each operator is different, fuel scarcity, purchasing of spare parts indented, and regulation of budget constraints. From these results the researchers got suggestions for improvements using 5W + 1H, namely by evaluating and retraining boiler operators, using different fuels such as household waste, purchasing spare parts with good quality that does not take long and focusing the purchase budget for chain grate boiler equipment.
Co-Authors Anita Dyah Juniarti Prasetya, Muhammad Andika Saefudin, Saefudin Saefudin