Meningkatkan Produksi Coal Crushing Pada PT. XYZ Menggunakan Pendekatan Lean Six Sigma DMAIC

Fauzi, Ahmad (2024) Meningkatkan Produksi Coal Crushing Pada PT. XYZ Menggunakan Pendekatan Lean Six Sigma DMAIC. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Batubara merupakan sumber energi utama di Indonesia, terutama untuk Pembangkit Listrik Tenaga Uap (PLTU). Proses coal crushing di PT. XYZ menjadi tahapan penting dalam penambangan batubara, namun perusahaan menghadapi kendala operasional yang menyebabkan ketidaktercapaian target produksi. Penelitian ini bertujuan mengidentifikasi masalah utama, menganalisis faktor yang memengaruhi produktivitas, serta merancang solusi perbaikan. Metode yang digunakan adalah DMAIC (Define, Measure, Analyze, Improve, Control). Pada fase Define, dilakukan pemetaan proses dan identifikasi waste. Fase Measure menggunakan diagram Pareto untuk menentukan masalah utama. Analisis akar masalah dilakukan pada fase Analyze menggunakan 5 Why's. Pada fase Improve, solusi dirumuskan melalui Future State Mapping dan fase Control menggunakan Kanban Board. Hasil penelitian menunjukkan produksi coal crushing Year to Date sampai dengan oktober 2024 mencapai 9,9 juta MT atau 94% dari target 10,56 juta MT, dan meningkat 139% dibandingkan pencapaian oktober 2023 yang hanya mencapai 7,2 juta MT dimana indikator keberhasilan salah satunya adalah berkurangnya lead time proses sebesar 31,25% dari 40 menit menjadi 27,5 menit.
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Coal is a primary energy source in Indonesia, particularly for steam power plants (PLTU). The coal crushing process at PT. XYZ is a critical stage in coal mining operations; however, the company faces operational challenges that hinder the achievement of production targets. This study aims to identify the main issues, analyze factors affecting productivity, and design effective improvement solutions. The methodology used is DMAIC (Define, Measure, Analyze, Improve, Control). In the Define phase, process mapping and waste identification were conducted. The Measure phase utilized a Pareto diagram to determine key issues. Root cause analysis using the 5 Why's method was performed in the Analyze phase. In the Improve phase, solutions were designed through Future State Mapping, while the Control phase implemented a Kanban Board for monitoring. The results show that Year-to-Date coal crushing production as of October 2024 reached 9.9 million MT, or 94% of the 10.56 million MT target, representing a 139% increase compared to October 2023, which only reached 7.2 million MT. One key success indicator was a reduction in process lead time by 31.25%, from 40 minutes to 27.5 minutes.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Efisiensi operasional, Peningkatan produksi, Manajemen Operasional, Kanban Board, Coal Crushing, Lean Six Sigma DMAIC, Operational Efficiency, Production Enhancement, Operational Management
Subjects:	T Technology > TS Manufactures > TS183 Manufacturing processes. Lean manufacturing.
Divisions:	Interdisciplinary School of Management and Technology (SIMT) > 61101-Master of Technology Management (MMT)
Depositing User:	Ahmad Fauzi
Date Deposited:	02 Jan 2025 05:54
Last Modified:	02 Jan 2025 05:54
URI:	http://repository.its.ac.id/id/eprint/116095

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