scholarly journals ANALISIS PENGENDALIAN PERSEDIAAN BAHAN BAKU PLAT BESI INDUSTRI KAROSERI MENGGUNAKAN METODE EOQ (Studi Kasus Pada PT. MISITAMA)

2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Paduloh Paduloh
Keyword(s):  
Manufacturing Industry ◽  
Raw Materials ◽  
Secondary Data ◽  
Raw Material ◽  
Safety Stock ◽  
Total Cost ◽  
Reorder Point ◽  
Material Purchases ◽  
Total Inventory ◽  
Iron Iron

This study aims to analyze the optimal usage volume of iron raw plates required by PT. Misitama for the period of 2017. PT. Misitama is a company engaged in the field of tank manufacturing industry for the needs of manufacturing and mining industries. The study analyzed the total cost of Iron Iron raw material supply which must be used by PT. Misitama during 2017, analyzing reorder point, safety stock and raw material inventory control using EOQ method. The data used is the data of September 2017 - October 2017. The data used is secondary data derived from corporate data. The results show that the amount of raw material purchases during 2017 if using the EOQ method becomes lower. The optimal purchase of raw materials to be done by the company in 2017 is 14.8 m2 with the frequency of ordering to be done as much as 8 times. The quantity of safety stock (Safety Stock) that must be available in warehouse of 7 m2 and reorder point (reorder point) EOQ that is when the warehouse inventory is only 8.88 m2. Total inventory cost for production process issued by PT. Misitama by using EOQ method becomes smaller than the total cost of previous inventory.

scholarly journals Analisis Pengendalian Ketersediaan Bahan Baku Di PT. Akasha Wira Internasional, Tbk Menggunakan Metode EOQ

2020 ◽  
Vol 2 (1) ◽  
pp. 22
Author(s):  
Sandi Wardani ◽  
Sri Rahayuningsih ◽  
Ana Komari
Keyword(s):  
Raw Materials ◽  
Raw Material ◽  
Economic Order Quantity ◽  
Economic Order ◽  
Optimal Order ◽  
Order Quantity ◽  
Inventory Cost ◽  
Safety Stock ◽  
Reorder Point ◽  
Total Inventory

This study aims to analyze the availability of raw materials at PT. Akasha Wira Internasional Tbk, analyzes the total cost of raw material inventories, analyzes to reorder point raw materials, analyzes the amount of safety stock of raw materials, analyzes raw material inventory control. The analytical method used is the Economic Order Quantity method, which is to find out the optimal order or purchase quantity with the aim of minimizing inventory costs consisting of ordering costs and storage costs. The results showed that the purchase of optimal ades 1500 ML label raw materials according to the Economic Order Quantity method during the 2017 period for each message was greater than what the company did. The optimal purchase of raw materials that must be done by the company in 2017 is 397 m with the frequency of ordering that must be done as much as 2 times. The safety stock quantity that must be available in the warehouse is 480.15 m and the Re Order Point according to the Economic Order Quantity is at the time of the inventory in the warehouse is 512.91 m. The total inventory cost for the production process incurred according to the Economic Order Quantity method is smaller than the total inventory cost incurred by the company. Keywords: Inventory, Raw Materials, Economic Order Quantity  Penelitian ini bertujuan untuk menganalisis ketersediaan bahan baku di PT. Akasha Wira Internasional Tbk, menganalisis total biaya persediaan bahan baku, menganalisis untuk melakukan pemesanan kembali (reorder point) bahan baku, menganalisis jumlah persediaan pengamanan barang  (safety stock) bahan baku, menganalisis pengendalian persediaan bahan baku. Penggunaan pendekatan yaitu metode Economic Order Quantity sebagai cara menyimpan bahan baku untuk ketersediaan biaya pesan dan biaya simpan bahan baku. Data yang diperoleh adalah data primer dan data sekunder. Pada bahan baku  ades 1500 ML tahun 2017 memiliki tingkat pemesanan yang lebih tinggi. Pembelian bahan baku optimal yang harus dilakukan perusahaan pada tahun 2017 adalah sebesar 397 m dengan frekuensi pemesanan yang harus dilakukan adalah sebanyak 2 kali. Kuantitas persediaan pengaman yang harus tersedia digudang adalah sebesar 480,15 m dan titik pemesanan kembali menurut Economic Order Quantity yaitu saat persediaan digudang tinggal 512,91 m. Maka dalam proses produksi menurut EOQ lebih kecil diabnding dengan total pembiayaan dari perusahaan.  Kata Kunci :  Persediaan , Bahan Baku, Economic Order Quantity

scholarly journals ANALYSIS CONTROL SUPPLIES RAW MATERIALS TO EFFICIENCY COST, USING THE METHOD OF ECONOMIC QUANTITY ORDER AT CV. PQR

2018 ◽  
Vol 1 (01) ◽  
pp. 41
Author(s):  
Wartoyo Hadi
Keyword(s):  
Production Process ◽  
Raw Materials ◽  
Analysis Data ◽  
Raw Material ◽  
Economic Order Quantity ◽  
Economic Order ◽  
Order Quantity ◽  
Safety Stock ◽  
Reorder Point ◽  
Efficiency Cost

The purpose of the implementation of this research is to find the effectiveness of supplies raw materials, the method of analysis data used in the square is the smallest trend for planning raw materials and controling supplies use method of economic order quantity (EOQ) analyze reorder point. Analysis reorder point and safety stock. And analyzes efficiency cost of raw materials. Forecasting raw materials years 20x7 according to the smallest trend, cloth and dakron happened the difference is greater than of the target needed (according to a company); controling supplies raw materials with the methods eoq in 20x7 more effective than reservations raw materials cloth and dakron and more efficient than cost raw materials. The company should review the policy of forecasting raw material supplies that had been undertaken and make planning supplies the raw material that more accurate using the firm’s historical data and not only targeting the output production next year, so that machines production can be optimized. Considering the use of control supplies with the methods economic order quantity to companies, so this analysis can determine material reservations, supplies safety, maximum supplies to avoid the risk of running out of raw materials, because the companies often happened less dressed up a result of reservations that time is inaccurate, the lack of safety stock and the deferred the delivery of goods which often disturb the production process, by this method can prevent these things, so that the production process can run smoothly and minimize the cost of raw materials supplies.

scholarly journals DETERMINATION OF INVENTORY PERIODIC REVIEW POLICY (R, s, S) USING POWER APPROXIMATION METHOD FOR MINIMIZE TOTAL INVENTORY COST IN PT. OPQ

2019 ◽  
Vol 3 (01) ◽  
pp. 47-52
Author(s):  
Ratnawia ◽  
Rio Aurachman ◽  
Saskia Puspa Kenaka
Keyword(s):  
Manufacturing Industry ◽  
Raw Materials ◽  
Service Level ◽  
Raw Material ◽  
Periodic Review ◽  
Inventory Cost ◽  
Automotive Manufacturing ◽  
Power Approximation ◽  
Total Inventory

OPQ is a company engaged in the automotive manufacturing industry. The company produces bolts for the safety area, it is related to the lower body of the four-wheeled vehicle. PT. OPQ was established in 2014 and today has already been the supplier for several major automotive companies in Indonesia. The demand of PT OPQ that must be fulfilled is increasing as the amount of consumer is increasing too. Due to the high demand, so the raw material stockout occurs. This make the company's service level is below the standard.   This study involved 48 sku of material raw materials that have normal distributed demand. Inventory policy applied in this research is periodic review (R, s, S) with the aim to minimize total cost of inventory and improve service level of company.   The result of this research was found to decrease total inventory cost by 15% with the value of existing inventory cost Rp1.100.879.479,- to Rp 936.061.349,- . In addition, service level at PT. OPQ has increased with the value of existing conditions 85% to 99%.   Keywords—Raw Material, Periodic Review, Probabilistic, Service Level, Stock out

scholarly journals Analisis Persedian Bahan Baku, Reorder Point dan Safety Stock Bahan Baku ADC-12

2020 ◽  
Vol 20 (2) ◽  
pp. 675
Author(s):  
Hazimah Hazimah ◽  
Yongki Antoni Sukanto ◽  
Nurlinda Ayu Triwuri
Keyword(s):  
Raw Materials ◽  
Raw Material ◽  
Economic Order Quantity ◽  
Order Quantity ◽  
Safety Stock ◽  
Reorder Point ◽  
Calculation Results ◽  
Descriptive Approach ◽  
Quantitative Descriptive ◽  
Optimal Calculation

The production process is very dependent on the availability of raw materials. An optimal calculation of raw material inventory is needed so that the company avoids the problem of lack or over stock of raw materials. This research aims to find out the quantity of raw material inventory, safety stock, and reorder point for ADC-12 raw materials.. This research uses a quantitative descriptive approach. Data sources obtained directly from the company. Analysis of the data used using the Economic Order Quantity method. Based on research and calculation results that have been done, if the company uses the EOQ method the quantity of raw material inventory is 80,861 kg. The quantity of the safety stock is 2,768 kg with a reorder point (ROP) of 14,038 kg.

scholarly journals Implementasi Algoritma Wagner-Within pada Manajemen Inventori di PT X

2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Puspandam Katias ◽  
Achmad Affandi
Keyword(s):  
Production System ◽  
Manufacturing Industry ◽  
Raw Materials ◽  
Raw Material ◽  
Efficient Production ◽  
Manufacturing Companies ◽  
Inventory Cost ◽  
Qualitative Descriptive ◽  
Total Inventory ◽  
Supporting Material

The increasing competition in the manufacturing industry caused increasing inconsumer demand of the quality and quantity of a good product. Therefore, manufacturing companies must have reliable services, policies and product qualities to satisfy its customers. So it needs to be supported by efficient production system and inventory system. To able to create an efficient production system then need a good raw material inventory planning. This research aims to compere how efficiently in planning raw materials inventory between Wagner-Within Algorithm with the actual concept that applied to PT X, Sidoarjo. The methodology of this research is qualitative descriptive research. The findings this research is engaged in packaging (woven bag and jumbo bag) with main raw materials such as plastic ore and supporting material in inner, thread, additive, and pigment. Based on the result of the analysis is known that the actual concept of the company gives the total inventory cost IDR 3.151.000.000 with the frequency of ordering 12 times while WagnerWithin Algorithm method provides a more efficient total inventory cost of Rp. 2.685.821.101 with8 times the frequency of ordering and can savings of 14.8% of total raw material inventory cost.

scholarly journals ANALISIS BIAYA PERSEDIAAN BAHAN BAKU IKAN DAN PERHITUNGAN ECONOMIC ORDER QUANTITY (EOQ) PADA RUMAH MAKAN IKAN BAKAR KINAMANG

2018 ◽  
Vol 13 (02) ◽  
Author(s):  
Melinda Miranda Wijaya ◽  
David P. E. Saerang ◽  
Meily Y. B. Kalalo
Keyword(s):  
Raw Materials ◽  
Raw Material ◽  
Economic Order Quantity ◽  
Economic Order ◽  
Order Quantity ◽  
Inventory Cost ◽  
Safety Stock ◽  
Purchase Order ◽  
Reorder Point ◽  
The Cost

            The cost of raw material inventory is a sacrifice of economic resources, measured in units of money, which have occurred or are likely to occur for raw material inventory, consisting of purchase costs, storage costs, and inventory shortage. This study aims to determine (1) Total Inventory Cost (TIC) based on RM policy. Kinamang Fuel Fish and Economic Order Quantity (EOQ) method during 2017 (2) Frequency of ordering of efficient fish raw material during 2017 (3) Quantity of safety stock and when to reorder point of raw materials fish in RM. Ikan Bakar Kinamang during 2017. This research is a descriptive research with qualitative approach. And use case study method. The result of the research shows that the Cost of Fish Raw Material Supplies at Kinamang Fuel Fish Restaurant is still not economical because the purchase (order) is only based on the previous sales estimate, and does not take into account economically the expenses incurred for the purchase and storage of fish raw materials the. Precisely with the calculation of Economic Order Quantity (EOQ), the cost of raw materials inventory of fish is much less, and can determine properly and correctly about the safety stock (safety stock), and reorder (reorder point).Keywords: Inventory Cost, EOQ, Frequency, Safety Stock, ROP

scholarly journals Penerapan Metode Economical Order Quantity Untuk Sistem Stok Barang Penggudangan dengan menggunakan teknologi Radio Frequency Identification

2017 ◽  
Vol 7 (1) ◽  
pp. 59
Author(s):  
Teddy Istanto
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Raw Materials ◽  
Raw Material ◽  
Order Quantity ◽  
Safety Stock ◽  
Reorder Point ◽  
Material Usage ◽  
Frequency Identification ◽  
Radio Frequency Identification Technology

The application of Economical Order Quantity method to stock warehouse system by using Radio Frequency Identification technology can provide information that can minimize stock availability in real time.  The research aims to develop the stock system using the methods of Economical Order Quantity, Reorder Point and Radio Frequency Identification technology. Computation of Economical Order Quantity is used per month with variables covering amount of raw material, ordering cost and storage cost. Reorder Point computation using lead time variable, raw material usage and safety stock. Safety stock is used if there is a delay in delivery of goods from suppliers, so it does not run out of raw materials and the company can still operate. The inventory data is obtained from transactions of incoming and outgoing goods which are recorded automatically when passing through Radio Frequency Identification reader. The computation of Economical Order Quantity, Reorder Point produces safety stock as output stock system. With the stock of goods in accordance with the fulfillment of Safety stock, then there is no delay in the delivery of goods from suppliers, so it does not run out of raw materials, after determination of the value of re-ordering.

scholarly journals OPTIMALISASI PENGENDALIAN PERSEDIAAN BAHAN BAKU DENGAN METODE JOINT ECONOMIC ORDER QUANTITY (JEOQ) PADA UD PURNAMA JATI JEMBER

BISMA ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 65
Author(s):  
Eka Bambang Gusminto ◽  
Didik Pudjo Musmedi ◽  
Ariwinata Kriswardhana
Keyword(s):  
Production Process ◽  
Wheat Flour ◽  
Raw Materials ◽  
Previous Method ◽  
Least Square ◽  
Raw Material ◽  
Process Data ◽  
Inventory Cost ◽  
Reorder Point ◽  
Total Inventory

This study aims to determine the optimal amount of raw materials inventory needs and the reorder point of raw materials in UD Purnama Jati Jember. UD Purnama Jati Jember is a company engaged in the production of Jember Regency speciality food and souvenirs. Due to not having a standard method, there are problems of raw material inventory in the production process, including overproduction and excess or shortage of raw materials. Data were obtained by interviewing the company owner and observing the company's production process. Data analysis were performed using least square forecasting, JEOQ, safety stock, and reorder points method. The results of the study showed that the optimal raw material needs are 4,644.772 kg of tape, 2,491.411 kg of wheat flour, 3,967.927 kg of egg, 1,439.623 kg of butter, and 3,519.371 kg of sugar. The total inventory cost of raw material is Rp. 281,296,067 indicated a more efficient inventory cost than the previous method. Meanwhile, the amount of raw materials inventory for the reordering point is 417.39 kg of tape, 231.29 kg of wheat flour, 358.88 kg of eggs, 131.78 kg of butter, and 318.99 kg of sugar. Keywords : JEOQ, raw materials control, reorder point, total inventory costs

scholarly journals Designing of Inventory Control for Aluminum Industry

2018 ◽  
Vol 3 (1) ◽  
pp. 22
Author(s):  
Ineu Widaningsih Sosodoro ◽  
Anastasia Lidya Maukar ◽  
Intan Puspita Pribadi
Keyword(s):  
Decision Support ◽  
Decision Support System ◽  
Support System ◽  
Manufacturing Industry ◽  
Raw Material ◽  
Review System ◽  
Inventory Cost ◽  
Continuous Review ◽  
Reorder Point ◽  
Total Inventory

<p>Inventory is one of important factors in manufacturing industry to ensure production process run. This research was conducted in an aluminum ingot manufacture company. The company faces a problem to manage the inventory system for their main raw material. The problem deals with the high expenditure due to safety stock that causes high inventory cost. Total inventory cost based on current condition is $270,706 per year. The proposed improvement method that used in this analysis is continuous review system. This method is applied to determine the appropriate Reorder Point (ROP) and to minimize the inventory cost. Based on the proposed improvement, total inventory cost can be reduced by 30%. This proposed system is also equipped with Decision Support System by using what-if analysis method as the tool to make decision for the next several periods by giving several scenarios and considering the aspects that influence to decision.<br />Keywords: Inventory, Reorder point, Continuous Review System, Decision Support System, What If Analysis, Scenario</p>

scholarly journals Pengendalian Persediaan Bahan Baku Vulkanisir Ban (Studi Kasus: PT. Gunung Pulo Sari)

2016 ◽  
Vol 12 (1) ◽  
pp. 326
Author(s):  
Difana Meilani ◽  
Ryan Eka Saputra
Keyword(s):  
Production Process ◽  
Inventory Management ◽  
Dynamic Method ◽  
Raw Materials ◽  
Minimum Cost ◽  
Raw Material ◽  
Minimum Size ◽  
Safety Stock ◽  
Reorder Point ◽  
Manufacturing Company

The problem of raw materials is the most fundamental issue for a manufacturing company, because the raw material is something that is very important for a production process. Companies must be able to maintain optimal raw material inventory that the production process can run smoothly so as to achieve the production target set by the company and can meet the demand of consumers. PT. Gunung Pulo Sari is one of the manufacturing company engaged in tire retreading. Here there are two types of main raw material of the tire retreading process is the rubber cold rare steak to cook and cook to cook hot rubber. PT. Gunung Sari Pulo do not meet the criteria of good inventory management. So far the company in order raw materials only based on estimates only. We conducted this study in order PT. Gunung Sari Pulo can manage them inventory system by finding the optimum safety stock, determine the total cost of the minimum size of the buyer to use the dynamic method, and the reorder point. Based on the research that has been done then the obtained value of safety stock is 18 units, the total minimum cost is Rp. Rp. 133 991 672, and reordering time (Reorder point) is 93 units.Keywords: Safety Stock, Dynamic Method, Lot Sizing, Reorder Point

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