Analisa Pengendalian Sparepart untuk Inventory PT X dengan Pendekatan Economic Order Quantity (Eoq) dan Just In Time (Jit)

Irfan, Zaki Maulana (2021) Analisa Pengendalian Sparepart untuk Inventory PT X dengan Pendekatan Economic Order Quantity (Eoq) dan Just In Time (Jit). S1 thesis, Universitas Kristen Indonesia.

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Abstract

Pengendalian inventory pada sektor pertambangan merupakan hal yang cukup krusial, terhentinya kegiatan produksi karena kurang baiknya pengendalian inventory dapat menyebabkan kerugian yang besar. Pengendalian inventory yang baik tidak hanya dilihat dari biaya persediaannya yang rendah tetapi harus menjamin bahwa ketersediaan stock tidak mengalami kondisi over stock dan stock out tetapi tetap dengan biaya yang minimum. Penentuan metode pengendalian inventory yang tepat harus di sesuaikan dengan stock class barang tersebut. Penelitian ini bertujuan untuk menganalisis pengendalian inventory serta memberikan rekomendasi pengendalian inventory untuk barang dengan stock class active item dan purchase as required dengan menggunakan metode Economic Order Quantity (EOQ) dan Just In Time (JIT) dan parameter yang di perhitungkan yaitu reorder point (ROP), reorder quantity (ROQ), safety stock (SS), kuantitas pemesanan optimum, standar deviasi, biaya persediaan, frekuensi order serta jumlah pengiriman optimum. Penelitian ini menghasilkan rekomendasi pengendalian inventory untuk stock class active item yaitu metode Economic Order Quantity dengan nilai ROP 22, ROQ 26, SS 18 serta biaya persediaan sebesar Rp. 1.045.953 sedangkan untuk stock class purchase as required yaitu metode perusahaan dengan kuantitas pemesanan optimum 2, frekuensi order 9, frekuensi pengiriman 1 dan biaya persediaan sebesar Rp. 136.836. Rekomendasi tersebut didapatkan berdasarkan analisa terhadap pengendalian stock serta biaya persediaan yang dibutuhkan dari masing-masing metode. Kata kunci: Pengendalian inventory, Economic Order Quantity (EOQ), Just In Time (JIT). / Inventory control in the mining sector is quite crucial, the cessation of production activities due to poor inventory control can cause large losses.Good inventory control is not only seen from the low cost of inventory but must ensure that the availability of stock does not experience over-stock and stock out conditions but still at a minimum cost.Determination of the right inventory control method must be adjusted to the stock class of the goods.This research aims to analyze inventory control and provide inventory control recommendations for goods with stock class active items and purchase as required using the Economic Order Quantity (EOQ) and Just In Time (JIT) methods and parameters taken into account, namely reorder point (ROP), reorder quantity (ROQ), safety stock (SS), optimum order quantity, standard deviation, inventory cost, order frequency and optimum number of deliveries. This research resulted in inventory control recommendations for stock class active items, namely the Economic Order Quantity method with a value of ROP 22, ROQ 26, SS 18 and inventory costs of Rp.1,045,953 while for stock class purchase as required is the company's method with the optimum order quantity 2, order frequency 9, delivery frequency 1 and inventory cost of Rp.136.836. The recommendation is based on an analysis of stock control and inventory costs needed from each method. Keywords: Inventory Control, Economic Order Quantity (EOQ), Just In Time (JIT)

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