PENGENDALIAN PERSEDIAAN BAHAN BAKU TUMPI MENGGUNAKAN METODE ECONOMIC ORDER QUANTITY (EOQ) DAN METODE PERIOD ORDER QUANTITY (POQ) DI UD. JAYA ABADI SOLUTION

The controlling planning of raw material needs in a company is very important to keep productivity on production activityand its influence on the material procurement cost. UD. Jaya Abadi Solution is one of the company that produces various fodder from the waste of animal feed manufacturing factory. The fluctuation often happens in raw material availability for production process especially “tumpi” raw materialwhich causes the production process is not optimal. The purpose of the research is to control “tumpi” raw material availability by using Economic Order Quantity (EOQ) method and Period Order Quantity (POQ) methodand to know the different cost between the company calculation and EOQ and POQ methods caculations. The methods used in this research are Economic Order Quantity (EOQ) method and Period Order Quantity (POQ) method, these methods are expected to be able to cope the fluctuation of the “tumpi” raw material availability. Based on the result of the research using Economic Order Quantity (EOQ) method and Period Order Quantity (POQ) method yielded is EOQ value of 220 tons with total cost of Rp. 113.165.509, while POQ value is 205 tons with the total cost of Rp. 113.285.546. The different cost produced is 19 % compared to the company total cost.

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OPTIMALISASI PENGADAAN BAHAN BAKU DALAM RANGKA MEMINIMALKAN TOTAL BIAYA PERSEDIAAN TEMBAKAU PADA PT BENTOEL INTERNATIONAL INVESTAMA DI MALANG

JAMIN : Jurnal Aplikasi Manajemen dan Inovasi Bisnis ◽

10.47201/jamin.v2i1.45 ◽

2019 ◽

Vol 2 (1) ◽

pp. 23

Author(s):

Dwi Dayanti Oktavia ◽

Peni Indarwati ◽

Marhaerni Fikky Febriananta

Keyword(s):

Production Process ◽

Raw Materials ◽

Cost Savings ◽

Optimal Level ◽

Raw Material ◽

Economic Order Quantity ◽

Economic Order ◽

Order Quantity ◽

Total Cost ◽

The Cost

A company should maintain an adequate or optimal level of inventory so that production operations can run smoothly and efficiently. What needs to be considered in this case is that the required raw materials are always available, so as to guarantee the smooth production process. However, the amount of inventory should not be too much because this will harm the company. Too much inventory will increase maintenance costs and storage costs in the warehouse. In addition, the amount of inventory that is too much can also increase the likelihood of losses due to damage and loss of quality that can reduce company profits. And vice versa, the amount of inventory that is too small will hamper the production process so that the company will suffer a lot of losses including: the machine does not work as it should, many workers are unemployed, and can even result in the cessation of the production process. This study aims to determine how the calculation of raw materials, what is the total cost of raw material inventory if the company establishes an EOQ (Economic Order Quantity) policy, what is the limit or point of ordering raw materials needed by the company during the grace period at PT.Bentoel International Investama in Malang.The population used is the supply of tobacco raw materials at PT. Bentoel International Investama, where this research was conducted by interview and documentation. The variable in this study is the supply of raw materials. The analysis used is the EOQ (Economic Order Quantity) method.The results of the study, if using the EOQ method in 2017 the cost savings of Rp 40,290,256,931, while in 2018 the cost savings of Rp. 44,388,428,549. Thus there is a difference between inventory policies carried out according to the company with EOQ calculations. It can be concluded that the supply of raw materials every year has increased raw materials, the frequency of purchasing raw materials when using raw materials when using the EOQ method is 2 times in one period, the limit for ordering raw materials needed by companies when using the 2017 EOQ method is 218,176.7 kg, while in 2018 it will be 210,853 kg. The total cost of raw material inventory calculated according to EOQ is less than that spent by the company, so there is a cost savings of raw material inventory

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Analysis of Inventory Control by Using Economic Order Quantity Model – A Case Study in PT Semen Padang

Jurnal Optimasi Sistem Industri ◽

10.25077/josi.v18.n2.p116-124.2019 ◽

2019 ◽

Vol 18 (2) ◽

pp. 116

Author(s):

Prima Fithri ◽

Alizar Hasan ◽

Fadhita Maisa Asri

Keyword(s):

Production Process ◽

Inventory Control ◽

Raw Material ◽

Economic Order Quantity ◽

Economic Order ◽

Optimal Order ◽

Order Quantity ◽

Cement Production ◽

Total Cost ◽

Optimal Order Quantity

Inventory control is a very important issue. It is because the amount of inventory will determine or affect the smoothness of the production process as well as the effectiveness and efficiency of the company. PT Semen Padang is a manufacturing company that produces 10,400,000 tons of cement per year. The achievement of the cement production target at this company depends on the availability of raw materials needed in the cement production process itself. Gypsum is an additional material of the cement production process which is very important because it is a raw material that must exist in the process of making cement. So, if the inventory of gypsum cannot meet the needs of production, then the production process of cement making will be disrupted. PT Semen Padang is using the Min-Max method for inventory control. But the costs are quite high. The cost of inventory can be minimized by using another method such as EOQ (Economic Order Quantity). The conclusions of this research are in 2016 by using EOQ method, the optimal order quantity is 32,073 ton per order, and the frequency is 9 times in a year with total cost Rp. 4,757,673,813.48, and in 2017, the optimal order quantity is 34,856 tons per order and the frequency is 9 times in a year with total cost Rp. 9,694,805,608.36.

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

The Management Journal of Binaniaga ◽

10.33062/mjb.v1i01.130 ◽

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.

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ANALISIS PENGENDALIAN PERSEDIAAN BAHAN BAKU PADA UD. MIE STEVEN KAROMBASAN KOTA MANADO

AGRI-SOSIOEKONOMI ◽

10.35791/agrsosek.13.3a.2017.18200 ◽

2017 ◽

Vol 13 (3A) ◽

pp. 251

Author(s):

Megawati ., Sengkeunaung ◽

Tommy F. Lolowang ◽

Nordy F.L. Waney

Keyword(s):

Inventory Control ◽

Secondary Data ◽

Raw Material ◽

Economic Order Quantity ◽

Economic Order ◽

Primary Data ◽

The Internet ◽

Order Quantity ◽

Inventory Cost ◽

Total Cost

This research aims to analyze raw material inventory at UD. Mie Steven. This research was conducted for four months from January to April 2017. The data used in this research are primary and secondary data. Primary data obtained through interviews with the company, while secondary data obtained from data that has been compiled in the form of documents from the company, data from BPS, previous research or from the internet. The data is processed using EOQ (Economic Order Quantity) method. The result of the research is known that the policy of raw material inventory control is done by UD. Mie Steven is not efficient yet. This is shown by the company's inventory cost is bigger than the result of analysis using EOQ method is 6,693 Kg with total cost of economical inventory Rp.11.325.500.

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PERENCANAAN DAN PENGENDALIAN PERSEDIAAN BAHAN BAKU PAIL CAT MENGGUNAKAN METODE MATERIAL REQUIRMENT PLANNING (MRP) PADA PT. XYZ

JUMINTEN ◽

10.33005/juminten.v1i4.127 ◽

2020 ◽

Vol 1 (4) ◽

pp. 163-172

Author(s):

Vify Elviana ◽

Akmal Suryadi

Keyword(s):

Inventory Management ◽

Consumer Demand ◽

Raw Materials ◽

Raw Material ◽

Economic Order Quantity ◽

Economic Order ◽

Order Quantity ◽

Material Requirements Planning ◽

Total Cost ◽

Material Requirements

Persediaan merupakan aset perusahaan yang memiliki peran penting dalam operasi bisnis, sehingga perusahaan penting untuk melakukan manajemen persediaan yang baik, artinya perusahaan harus mampu mengantisipasi kendala maupun tantangan yang ada dalam pengelolahan persediaan untuk meminimalisasi total biaya yang harus dikeluarkan oleh perusahaan. Permasalahan yang timbul pada persediaan bahan baku di PT XYZ adalah perusahaan melakukan perencanaan dan pengendalian bahan baku hanya berdasarkan pada pengalaman-pengalaman sebelumnya dan tidak berdasarkan pada metode yang sudah baku. Oleh karena itu pembelian bahan baku tidak sesuai dengan permintaan konsumen. Hal tersebut sering menyebabkan terjadinya kelebihan maupun kekurangan stok bahan baku. Kesalahan dalam penentuan besarnya investasi dalam persediaan akan mengurangi keuntungan perusahaan. Adanya persediaan bahan baku yang terlalu besar, akan menambah beban biaya pemeliharaan dan penyimpanan dalam gudang, serta kemungkinan terjadinya penurunan kualitas bahan baku yang dapat menyebabkan berkurangnya keuntungan perusahaan. Namun jika persediaan bahan baku terlalu sedikit maka akan berakibat pada terhambatnya proses produksi, sehingga tidak terpenuhinya permintaan konsumen. Hasil penelitian ini dapat menyimpulkan bahwa perencanaan kebutuhan bahan baku dengan metode perusahaan didapatkan total cost sebesar Rp 1.796.762.429,-, sedangkan metode Material Requirements Planning (MRP) didapatkan total cost sebesar Rp 1.576.011.801,-. Maka dapat disimpulkan telah terjadi penurunan total cost seluruh bahan baku sebesar 12,28%. Hal ini membuktikan bahwa metode Material Requirements Planning (MRP) lebih efisien daripada metode PT. XYZ. Oleh karena itu untuk mendapatkan total cost yang minimum, metode Material Requirements Planning (MRP) diterapkan pada periode Februari-Juni 2020 sehingga didapatkan total cost sebesar Rp 1.576.011.801,-. Kata Kunci: Material Requirements Planning (MRP), PT XYZ, Pail Cat, Economic Order Quantity (EOQ), Period Order Quantity (POQ), Lot For Lot (LFL). ABSTRACT Inventory is a company asset that has an important role in business operations, so the company is important to conduct good inventory management, meaning that the company must be able to anticipate obstacles and challenges that exist in managing inventory to minimize the total cost to be incurred by the company.The problem that arises in the supply of raw materials in PT XYZ is that the company plans and controls raw materials based only on previous experiences and not based on established methods. Therefore, the purchase of raw materials is not in accordance with consumer demand. This often leads to excess or shortage of raw material stock. Mistakes in determining the amount of investment in inventories will reduce company profits. The availability of raw materials that are too large, will add to the burden of maintenance and storage costs in the warehouse, as well as the possibility of a decline in the quality of raw materials that can lead to reduced company profits. However, if the supply of raw materials is too little, it will result in obstruction of the production process, so that consumer demand is not fulfilled. The results of this study can conclude that the planning of raw material needs by the company method obtained a total cost of Rp 1,796,762,429, - while the Material Requirements Planning (MRP) method obtained a total cost of Rp 1,576,011,801, -. Then it can be concluded that there has been a decrease in the total cost of all raw materials by 12.28%. This proves that the Material Requirements Planning (MRP) method is more efficient than the PT. XYZ. Therefore, to get the minimum total cost, the Material Requirements Planning (MRP) method was applied in the February-June 2020 period so that a total cost of Rp 1,576,011,801 was obtained. KeyWords: Material Requirements Planning (MRP), PT XYZ, Pail Cat, Economic Order Quantity (EOQ), Period Order Quantity (POQ), Lot for Lot (LFL).

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Analisis Pengendalian Persediaan Bahan Baku dengan Menerapkan Metode EOQ (Economic Order Quantity) pada PT. Jatisari Furniture Work

EKONOMIS Journal of Economics and Business ◽

10.33087/ekonomis.v5i1.304 ◽

2021 ◽

Vol 5 (1) ◽

pp. 215

Author(s):

Arga Sutrisna ◽

Rizki Ginanjar ◽

Suci Putri Lestari

Keyword(s):

Production Costs ◽

Raw Material ◽

Economic Order Quantity ◽

Economic Order ◽

Analysis Tool ◽

Order Quantity ◽

Inventory Cost ◽

Total Cost ◽

Inventory Costs ◽

Total Inventory

This research objectives aims to determine and analyze raw material inventory control, the ideal raw material inventory that the company must provide and the efficiency of production costs carried out by Jatisri Furniture Work in Tasikmalaya for the period 2018.11 – 2020.02. The data collection method in this study is by direct observation at Jatisari Furniture Work in Tasikmalaya. Using techniques such us interviews, observation, and documentation. These observations were made in production reports for the years 2018 – 2020. The analysis tool was carried out using the Economic Order Quantity (EOQ) method such us safety stock, reorder point, and total inventory cost. The result of the Economic Order Quantity (EOQ) analysis show that the total cost of raw the material inventory that must be incurred by the company is greater than the total cost of inventories calculated according to the EOQ method. Companies should follow the calculations from the EOQ method so that they can save on raw material inventory costs, so that production costs are more efficient.

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KUANTITAS PEMESANAN EKONOMIS BAHAN BAKU TEPUNG PADA USAHA ROTI SURYA BAKERY KOTA BANGKULU

Managament Insight: Jurnal Ilmiah Manajemen ◽

10.33369/insight.12.1.124-140 ◽

2019 ◽

Vol 12 (1) ◽

pp. 124-140

Author(s):

Virda Palupi ◽

Trisna Murni ◽

Syamsul Bachri ◽

Sri Warsono

Keyword(s):

Wheat Flour ◽

Lead Time ◽

Quantitative Method ◽

Secondary Data ◽

Raw Material ◽

Economic Order Quantity ◽

Economic Order ◽

Order Quantity ◽

Total Cost ◽

Descriptive Qualitative

This study aimed to analyze the Economic order quantity level of raw material wheat flour for Surya Bakery and the quantity level of Re-order Point. The design of study was descriptive qualitative. The study used secondary data in order to gain the information about purchasing of raw material of flour. The data analyzed by quantitative method which used Economic Order Quantity (EOQ) method and Re-order Point. The result shows that EOQ in Usaha Roti Surya Bakery is 4.266 kg with frequency of ordering raw material is 22 times. Wher eas re-order point of the raw material when inventory reach 1.068 kg with lead time are 4 days. Before using EOQ method, the frequency of ordering raw material of flour is 36 times per year. After using EOQ method, it is found the frequency of ordering raw material of flour is 22 times per year. So that, after using EOQ method, the result of ordering cost was Rp. 2.668.00,- carrying cost was Rp. 2.615.000,-, and total cost of raw material was Rp. 5.283.000,-. Therefore, the Surya-Bakery could save money for Rp 533.000 per year.

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ANALISIS PERSEDIAAN BAHAN BAKU PADA AGROINDUSTRI KRIPIK BUAH SANUR DI KABUPATEN MALANG

JSEP (Journal of Social and Agricultural Economics) ◽

10.19184/jsep.v10i1.5207 ◽

2017 ◽

Vol 10 (1) ◽

pp. 47

Author(s):

Nineng Puspito Ratih ◽

Anik Suwandari ◽

M Rondhi

Keyword(s):

Production Process ◽

Raw Materials ◽

Point Method ◽

Raw Material ◽

Economic Order Quantity ◽

Economic Order ◽

Order Quantity ◽

Traditional Methods ◽

Safety Stock ◽

Key Informant

Various fruits can be tranformed into delicious edible foods like chips. That was a basic idea which inspired “Sanur” Fruit Chips Agroinduntry to make chips which based on fruits processing. This agroindustry still performs traditional methods to manage its fruit inventory as raw material. This lead to a fluctuation and uncertainty in inventory stock. The traditional inventory in this agroindustry also caused a bottleneck in production process. The research was aimed to : (1) determine the economic order quantity of fruit chips agroindustry. (2) determine the most efficient re-order point of inventory in “Sanur” Fruit Chips Agroindustry. The research was descriptive and analytical. The key informant was selected purposively based on some criteria. Data was collected by using interview and observation. The result showed that : (1) economic order quantity was more preferable than Lot for Lot and tradional methods. (2) the traditional re-order point method in “Sanur” fruit chips agroindustry was not efficient. It was indicated by the safety stock, the amount of procurement and the inventory of minimum raw materials which showed full uncertain.

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Perencanaan Persediaan Bahan Baku pada UMK Tiga Bersaudara Kota Kupang dengan Metode Economic Order Quantity (EOQ)

Reviu Akuntansi, Manajemen, dan Bisnis ◽

10.35912/rambis.v1i2.653 ◽

2021 ◽

Vol 1 (2) ◽

pp. 61-75

Author(s):

Seprianto E. Haobenu ◽

◽

Antonio E. L. Nyoko ◽

Aldarine Molidya ◽

Rolland E. Fanggidae ◽

...

Keyword(s):

Raw Materials ◽

Raw Material ◽

Economic Order Quantity ◽

Economic Order ◽

Order Quantity ◽

Inventory Planning ◽

Safety Stock ◽

Total Cost ◽

Analysis Technique ◽

Corn Products

Abstract Abstract Purpose: This research is a form of raw material inventory planning using the Economic Order Quantity (EOQ) method for fried corn products at UMK Tiga Bersaudara Kupang City. Research Methodology: This research method used a quantitative approach. The data analysis technique used is forecasting, EOQ, and Safety Stock. Results: The outcome of this study is the creation of a raw material inventory that can be applied by the UMK Tiga Bersaudara in carrying out its production. The number of orders for raw materials has also been identified using the EOQ method. To avoid shortages of raw materials, a calculation of how much safety stock is needed in the next period has also been calculated. Limitation: This calculation is predictive so that the reality in the field can change in the future. Contribution: Companies are advised to plan raw material inventory using the methods used in this study, namely forecasting, EOQ, SS, and calculating the total cost of inventory.

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ANALISIS PERSEDIAAN BAHAN BAKU KELAPA PADA PT. DIMEMBE NYIUR AGRIPRO (DNA) DI DESA TETEY, KECAMATAN DIMEMBE, KABUPATEN MINAHASA UTARA.

AGRI-SOSIOEKONOMI ◽

10.35791/agrsosek.12.2a.2016.12901 ◽

2016 ◽

Vol 12 (2A) ◽

pp. 251

Author(s):

Antonius ., Anny ◽

Agnes Estephina Loho ◽

Tommy Ferdy Lolowang

Keyword(s):

Data Analysis ◽

Secondary Data ◽

Raw Material ◽

Economic Order Quantity ◽

Economic Order ◽

Order Quantity ◽

Total Cost ◽

Purchase Frequency ◽

Production Department ◽

Flour Mill

This study aimed to analyze the level of raw material inventory coconut optimal in order to minimize the total cost of inventory during 2015 on coconut flour mill PT. Dimembe Nyiur Agripro (DNA). This research was conducted in April 2016 to June 2016, from preparation to preparation of the report. The data used is data Primary and Secondary Data. This research was conducted by interview directly to the staf of production department of PT. Dimembe Nyiur Agripro (DNA) and also use the written data in the form of documents obtained from the company. Data analysis was performed using Economic Order Quantity (EOQ). These results indicate that the optimal raw material inventory for each purchase / reservation for 2015 should be carried out by PT. Dimembe Nyiur Agripro (DNA) is 61.307 kg with 203 times the purchase frequency and interval of purchase / reordering is 2 days. Thus, companies can minimize the total cost of inventory.

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