Pemilihan Supplier Sparepart Conveyor Pelabuhan Terminal Batubara dengan Menggunakan Metode AHP-TOPSIS

Ramadhani, Rizky (2025) Pemilihan Supplier Sparepart Conveyor Pelabuhan Terminal Batubara dengan Menggunakan Metode AHP-TOPSIS. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Dalam industri pertambangan batu bara, sistem conveyor merupakan komponen vital dalam mendukung kelancaran distribusi batubara dari stockpile ke tongkang di pelabuhan terminal. PT X sebagai salah satu perusahaan tambang batu bara terkemuka di Indonesia menghadapi tantangan terkait keberlangsungan operasional conveyor, khususnya dalam aspek pengadaan sparepart. Ketergantungan terhadap supplier tertentu, tanpa evaluasi berkelanjutan, dapat menimbulkan risiko seperti keterlambatan pengiriman, fluktuasi harga, serta downtime yang berdampak pada produktivitas perusahaan. Penelitian ini bertujuan untuk mengembangkan model pemilihan supplier sparepart pada Pelabuhan Terminal Batubara PT X dengan pendekatan metode Analytical Hierarchy Process (AHP) dan Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). AHP digunakan untuk menentukan bobot prioritas kriteria berdasarkan penilaian para ahli melalui perbandingan berpasangan, sementara TOPSIS digunakan untuk menetapkan urutan prioritas supplier berdasarkan kedekatan relatif terhadap solusi ideal. Hasil dari penelitian implementasi metode AHP untuk untuk kriteria dengan bobot tertinggi yang diperoleh adalah Kualitas (35,59%), Services (29,59%), Pengiriman (15,93%), Biaya (12,98%) dan Profil (5,91%), sementara untuk sub-kriteria dengan bobot adalah Spesifikasi (19,30%), Sertifikasi (16,28%), diikuti oleh Purna Jual (15,63%) dan Garansi (13.97%) dengan consistency ratio < 0.1. Didapat bahwa supplier S1 memiliki peringkat teratas dengan nilai preferensi sebesar 0,8837. Selain itu, untuk memastikan hasil peringkat terbaik dari metode TOPSIS, dilakukan analisis sensitivitas dengan penambahan ataupun pengurangan sebanyak 1% dan peringkat dari masing-masing alternatif supplier sparepart conveyor peringkat 1 tidak mengalami perubahan sehingga dapat disimpulkan bahwa metode TOPSIS dalam penelitian ini sudah robust.
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In the coal mining industry, the conveyor system is a vital component in ensuring the smooth distribution of coal from the stockpile to barges at the terminal port. PT X, one of the leading coal mining companies in Indonesia, faces challenges regarding the sustainability of conveyor operations, particularly in spare part procurement. Dependence on specific suppliers without continuous evaluation can pose risks such as delivery delays, price fluctuations, and operational downtime, which affect the company’s productivity. This study aims to develop a supplier selection model for spare parts at the Coal Terminal Port of PT X using the Analytical Hierarchy Process (AHP) and Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) methods. AHP is employed to determine the priority weights of criteria based on expert assessments through pairwise comparisons, while TOPSIS is used to rank suppliers based on their relative closeness to the ideal solution. The AHP results indicate that the highest weighted criteria are Quality (35,59%), Services (29.59%), Delivery (15,93%), Cost (12,98%), and Profile (5,91%), while the top sub-criteria are Specification (19,30%), Certification (16,28%), followed by After-Sales Service (15,63%) and Warranty (13,97%) with a consistency ratio < 0,1. Supplier S1 ranks the highest with a preference value of 0,8837. Furthermore, to ensure the robustness of the TOPSIS ranking results, a sensitivity analysis was conducted by increasing or decreasing weights by 1%, and the top-ranked supplier remained unchanged. Thus, the TOPSIS method in this study is proven to be robust.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	AHP-TOPSIS, supplier sparepart, batubara, analisis sensitivitas, sparepart supplier, coal, sensitivity analysis
Subjects:	H Social Sciences > HD Industries. Land use. Labor > HD28 Management. Industrial Management H Social Sciences > HD Industries. Land use. Labor > HD31 Management--Evaluation H Social Sciences > HD Industries. Land use. Labor > HD38.5 Business logistics--Cost effectiveness. Supply chain management. ERP H Social Sciences > HD Industries. Land use. Labor > HD39.5 Industrial procurement. T Technology > TS Manufactures > TS161 Materials management.
Divisions:	Interdisciplinary School of Management and Technology (SIMT) > 61101-Master of Technology Management (MMT)
Depositing User:	Rizky Ramadhani
Date Deposited:	30 Jul 2025 07:03
Last Modified:	30 Jul 2025 07:03
URI:	http://repository.its.ac.id/id/eprint/120327

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