Analisa Efisiensi Biaya Rantai Pasok Batubara Menggunakan Value Stream Mapping Pada Industri Tambang Batubara

Dwialfawan, Rizky Arbi (2025) Analisa Efisiensi Biaya Rantai Pasok Batubara Menggunakan Value Stream Mapping Pada Industri Tambang Batubara. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian ini bertujuan untuk mengidentifikasi pemborosan dalam alur rantai pasok batubara dengan skema FOBMV di PT X, serta merancang usulan perbaikan guna meningkatkan efisiensi dan menurunkan biaya operasional. Permasalahan utama yang dihadapi adalah rendahnya margin penjualan batubara yang disebabkan oleh tingginya biaya operasional, khususnya pada aktivitas transportasi dari tambang hingga ke pelanggan. Biaya transportasi ini tercatat mencapai 128 juta USD per tahun, atau setara dengan 88% biaya dalam rantai pasok. Untuk mencapai tujuan tersebut, penelitian ini mengintegrasikan pendekatan lean melalui metode value stream mapping dengan pendekatan activity-based costing, guna menghidentifikasi aktivitas value-added dan aktivitas non-value added serta menghitung alokasi biaya secara lebih akurat berdasarkan aktivitas yang dilakukan. Hasil penelitian menunjukan bahwa pemborosan utama terjadi pada aktivitas transportasi dan proses yang tidak tepat. Usulan perbaikan difokuskan pada pengurangan titik transit dan optimalisasi jalur distribusi batubara. Implemetasi perbaikan tersebut berhasil menghasilkan penurunan waktu proses hingga 20%, penurunan waktu transportasi sebesar 56%, serta pengurangan aktivitas non-value added hingga 90%. Secara keseluruhan, perbaikan ini berdampak signifikan terhadap penurunan biaya operasional dan peningkatan margin penjualan batubara, yaitu dari semula 2 USD/ton menjadi 16,44 USD/ton.
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This study aims to identify waste in the coal supply chain flow with the FOBMV scheme at PT X, and design improvement proposals to increase efficiency and reduce operational costs. The main problem faced is the low coal sales margin caused by high operational costs, especially in transportation activities from the mine to the customer. This transportation cost was recorded at 128 million USD per year, or equivalent to 88% of the cost in the supply chain. To achieve this goal, this study integrates the lean approach through the value stream mapping method with the activity-based costing approach, to identify value-added activities and non-value-added activities and calculate cost allocation more accurately based on the activities performed. The results showed that the main waste occurred in transportation activities and inappropriate processes. The proposed improvements focused on reducing transit points and optimizing coal distribution channels. The implementation of these improvements resulted in a 20% reduction in processing time, a 56% reduction in transportation time, and a 90% reduction in non-value-added activities. Overall, this improvement had a significant impact on reducing operational costs and increasing coal sales margins, from the original 2 USD/ton to 16.44 USD/ton.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	FOBMV, rantai pasok, batubara, value stream mapping, biaya, margin pernjualan batubara, FOBMV, supply chain, Coal, value stream mapping, cost, coal sales margin
Subjects:	H Social Sciences > HD Industries. Land use. Labor > HD38.5 Business logistics--Cost effectiveness. Supply chain management. ERP
Divisions:	Interdisciplinary School of Management and Technology (SIMT) > 61101-Master of Technology Management (MMT)
Depositing User:	Rizky Arbi Dwialfawan
Date Deposited:	02 Jul 2025 05:34
Last Modified:	02 Jul 2025 05:34
URI:	http://repository.its.ac.id/id/eprint/119322

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