Sugiyono, Lilik Agus (2020) Analisis Ekonomi Dan Risiko Tambahan Alat Berat Untuk Pemenuhan Bahan Baku Di PT. X. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
PT. X saat ini melakukan penambangan batu kapur di tiga lokasi: eksisting,
Pit Limit dan Tajarang. Diperkirakan pada akhir tahun 2020 cadangan batu kapur
di area eksisting akan habis, dan karenanya semua batu kapur harus diperoleh dari
Area Pit Limit dan Area Tajarang. Jarak transportasi dari area peledakan ke area
crusher semakin jauh, dampaknya adalah kebutuhan alat berat, terutama dump
truck dan excavator semakin meningkat. Dalam tulisan ini, masalah yang harus
diselesaikan adalah bagaimana memilih strategi untuk memasok kebutuhan alat
berat tambahan untuk memenuhi kebutuhan batu kapur dengan mempertimbangkan
aspek ekonomi. Selanjutnya bagaimana penilaian dan mitigasi risiko terhadap
strategi yang dipilih.
Alternatif untuk memenuhi alat berat yang dapat diidentifikasi yaitu:
melakukan investasi untuk kebutuhan alat berat tambahan, sewa alat berat
tambahan, memilih kontrak jasa penambangan. Analisis ekonomi yang digunakan
adalah Present Worth Analysis dan Annual Cash Flow Analysis dan metode analisis
risiko yang digunakan adalah Failure Mode and Effect Analysis (FMEA).
Berdasarkan perhitungan Present Worth of Cost dan Equivalent Uniform
Annual Cost terendah, dapat disimpulkan bahwa alternatif yang dipilih untuk
memasok alat berat tambahan adalah melalui kontrak jasa penambangan.
Perusahaan akan mendapat manfaat lain, yaitu tidak perlu memberikan biaya
investasi yang besar di muka. Perusahaan dapat mendistribusikan beban biaya
investasi ke dalam biaya operasional. Dengan mempertimbangkan nilai pareto 80%
akumulasi nilai RPN (Risk Priority Number) maka terdapat 8 risiko yang menjadi
perhatian
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PT. X is currently conducting limestone mining in three locations
limestone mining in three locations: eksisting, Pit Limit dan Tajarang. It is
estimated that by the end of 2020 limestone reserves in the Area A will be exhausted,
and hence all limestone must be gotten from Area Pit Limit dan Area Tajarang.
The transport distance from the blasting area to the crusher area is getting further
away. The impact is that the needs for heavy equipment, particularly dump trucks
and excavators, are increasing. In this paper, the problem to be resolved is how to
choose a strategy to supply additional heavy equipment needs to meet the needs of
limestone by considering economic aspects. Next is how the risk assessment and
mitigation of the strategy chosen.
The alternative for fulfilling heavy equipment that can be identified are
explained as follows: doing investment for the need of additional heavy equipment,
rent of additional heavy equipment, choosing mining services contract. The
economic analysis used is the Present Worth Analysis and Annual Cash Flow
Analysis and the risk analysis method used is the Failure Mode and Effect Analysis
(FMEA).
Based on the lowest Present Worth of Cost and Equivalent Uniform
Annual Cost calculation, it can be concluded that the alternative chosen to supply
additional heavy equipment is through a mining service contract. The company
will get another benefit, namely not needing to provide a large investment cost up
front. The company can distribute the burden of investment cost into operational
cost. With an 80% pareto value accumulated RPN (Risk Priority Number) value,
there are 8 risks of concern
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Failure Mode and Effect Analysis (FMEA), Present Worth Analysis, Annual Cash Flow Analysis, Perencanaan Fasilitas |
| Subjects: | T Technology > T Technology (General) > T174.5 Technology--Risk assessment. |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Industrial Engineering > 26101-(S2) Master Thesis |
| Depositing User: | lilik agus sugiyono |
| Date Deposited: | 22 Aug 2020 01:32 |
| Last Modified: | 29 May 2023 14:23 |
| URI: | http://repository.its.ac.id/id/eprint/80262 |
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