Amalia, Meidina Rizky (2017) Pengendalian Persediaan Komponen dengan Metode Periodic Review (R, S) Mempertimbangkan FSN-ABC pada PT. Prastiwahyu Tunas Engineering,. Sarjana thesis, Universitas Brawijaya.
Abstract
PT. Prastiwahyu Tunas Engineering (PTE) merupakan perusahaan yang bergerak pada bidang peralatan tenaga listrik yaitu produsen panel listrik tegangan rendah (low voltage panel dengan dua tipe produk yang dihasilkan yaitu panel free standing dan panel wall mounting. PTE memiliki gudang untuk menyimpan komponen consumable untuk menjamin keberlangsungan proses produksi. Permasalahan yang dihadapi oleh PTE adalah overstock komponen consumable karena PTE tidak memperhitungkan safety stock dan batas maksimum persediaan atau maximum stock komponen. Di sisi lain, komponen harus diklasifikasikan sesuai dengan tingkat kekritisannya. PTE sudah melakukan FSN analysis hanya berdasarkan intuisi tidak berdasarkan teori, sehingga menyebabkan terjadinya kesalahan dalam perhitungan pengendalian persediaan komponen. Penelitian ini dilakukan untuk mengklasifikasikan komponen ditinjau berdasarkan pergerakan komponen dan nilai volume tahunan dengan menggunakan FSN analysis dan ABC analysis. Berdasarkan matrix klasifikasi komponen FSN-ABC, terdapat 6 komponen yang kritis yang termasuk kelas AF dan BF yaitu Cable NYAF 1 X 1,5 Black, Cable NYAF 1 X 2,5 Black, Cable NYAF 1 X 4 Black, End Stop DSE Grey Local, Scoen Ring SC 10-6 Polos Local, dan Mur M6 Local. Perhitungan nilai safety stock dan target stock level (maximum stock) dari komponen kritis tersebut menggunakan metode periodic review (R, S) system. Penentuan nilai safety stock dan target stock level komponen didasarkan pada data historis perusahaan, sedangkan penentuan order interval dilakukan setiap 4 minggu sekali karena mengikuti kebijakan stock opname perusahaan karena periodic review merupakan peninjauan persediaan yang dilakukan secara periodik dimana pemesanan dilakukan saat review persediaan. Output yang didapatkan adalah total biaya, service level, dan inventory level kebijakan existing dengan periodic review. Hasil dari penelitian ini didapatkan bahwa inventory level dengan kebijakan periodic review secara keseluruhan mengalami penurunan namun tetap dapat menjaga service level sebesar 100% yang berdampak pada peningkatan efisiensi. Hal tersebut dikarenakan penurunan total biaya pada masing-masing komponen Cable NYAF 1 X 1,5 Black, Cable NYAF 1 X 2,5 Black, Cable NYAF 1 X 4 Black, End Stop DSE Grey Local, Scoen Ring SC 10-6 Polos Local, dan Mur M6 Local yaitu sebesar 23,45%, 52,87%, 30,49%, 50,77%, 44,54%, dan 26,85%. Penurunan biaya persediaan secara keseluruhan cukup signifikan dengan presentase penurunan sebesar 61,24%.
English Abstract
PT. Prastiwahyu Tunas Engineering (PTE) is a company engaged in the field of electrical power equipment that manufactures low voltage panels with two types of products named free standing panel and wall mounting panel. PTE has a warehouse to store consumable to guarantee continuity of production process. A condition where supply exceeds demand of consumable components was problem faced by PTE because consumable components had no safety stock and inventory limit or maximum stock of components. On the other hand, components had to fit with their critical levels. PTE had classified components using FSN analysis, but based on intuition. Incorrect FSN classification allowed errors in the calculation of components inventory control. This research was conducted to classify components reviewed based on movement of components and annual volume value by using FSN analysis and ABC analysis. Based on the matrix of FSN-ABC component classification, there were 6 critical components which belong to AF and BF class in terms of quantity of usage and value of company investment to those components which were Cable NYAF 1 X 1.5 Black, Cable NYAF 1 X 2.5 Black, Cable NYAF 1 X 4 Black, End Stop DSE Gray Local, Scoen Ring SC 10-6 Polos Local, and Mur M6 Local. Safety stock and target stock level of critical components were determined by using periodic review method (R, S) system. The determination of the value of the safety stock and the target stock level (maximum stock) of the components were based on the historical data of the company, while the determination of the interval order was done every 4 weeks as it followed the schedule of the company's stock review because periodic review means the inventory on hand is counted at specific regular intervals and an order is placed at company's stock review. The output obtained was to compare the total cost, service level, and inventory level of existing policy with periodic review. The result of this research indicated that inventory level with periodic review policy decreased but can achieve 100% service level which impact on increased efficiency. It indicated that total inventory cost using periodic review policy of each component of NYAF Cable 1 X 1.5 Black, NYAF Cable 1 X 2.5 Black, NYAF Cable 1 X 4 Black, End Stop DSE Gray Local, Scoen Ring SC 10-6 Polos Local, and Mur M6 Local decreased compared to existing total cost with percentage of 23,45%, 52,87%, 30,49%, 50,77%, 44,54%, and 26,85% respectively. The decrease in inventory cost as a whole was quite significant with a decreased total inventory cost percentage of 61,24%.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FT/2017/713/051707306 |
| Uncontrolled Keywords: | ABC, FSN, periodic review, (R, S), safety stock, target stock level. |
| Subjects: | 600 Technology (Applied sciences) > 658 General management > 658.7 Management of materials |
| Divisions: | Fakultas Teknik > Teknik Industri |
| Depositing User: | Budi Wahyono Wahyono |
| Date Deposited: | 25 Aug 2017 06:39 |
| Last Modified: | 28 Nov 2020 04:56 |
| URI: | http://repository.ub.ac.id/id/eprint/1694 |
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