scholarly journals Perencanaan dan Pengendalian Persediaan Bahan Baku Benang dengan Lot Sizing Economic Order Quantity

2017 ◽  
Vol 10 (2) ◽  
Author(s):  
Christian Lois ◽  
Janny Rowena ◽  
Hendy Tannady
Keyword(s):  
Lot Sizing ◽  
Raw Materials ◽  
Raw Material ◽  
Economic Order Quantity ◽  
Economic Order ◽  
Manufacturing Companies ◽  
Order Quantity ◽  
Total Cost ◽  
Material Requirement Planning ◽  
Material Requirement

<p>The object of this study is the inventory system of manufacturing companies with sock products in Tangerang, Banten. Types of socks produced are plain white socks, black socks, and small socks. This study aims to determine the description of the planning and control of raw material inventory and find out how much raw materials to be prepared as well as the total cost of production produced by applying the method of Material Requirement Planning from the production process. In its production activities, the company uses 4 main raw materials making white socks namely Polyester White yarn, Spandex, Nylon, and Rubber. In one day, production produces 3 dozen socks. The raw materials used are 1 cone yarn for 2.5 dozen. So to produce 3 dozen socks a day, it takes 1.2 cone threads. From the analysis, it is known that the booking fee is Rp.28000 per message and the storage fee is Rp.2000 per unit per year. Thus the value of economic needs or Economic Order Quantity generated is 157 units. Thus, for Polyester White yarn material (75%) requires 47.1 cones, Spandex yarn (15%) requires 9,42 cones, nylon yarn (5%) and rubber yarn (5%) equally require 3.14 cone. Set up fee Rp.156586 while the storage fee Rp.157000 so the total cost Rp.313586.</p><p>Keywords: Socks, Material Requirement Planning, Economic Quantity</p>

scholarly journals The Controlling of Raw Materials Inventory using Material Requirement Planning Method in PT Anugrah Mandiri

2020 ◽  
Vol 9 (2) ◽  
pp. 830-835
Keyword(s):  
Quantitative Research ◽  
Lot Sizing ◽  
Raw Materials ◽  
Planning Method ◽  
Raw Material ◽  
Order Quantity ◽  
Cross Sectional ◽  
Total Cost ◽  
Material Requirement Planning ◽  
Material Requirement

The purpose of this study is to determine the most appropriate forecasting to predict the demand for raw materials of laundry in 2017, determine the results of the Material Requirement Planning calculation using lot permits, and to determine the total cost-efficiency of the conventional calculation method with the Material Requirement Planning method. The research method used is quantitative research, descriptive research type, and time horizon is cross-sectional for all data collection. This study uses Exponential smoothing (QM for Windows) forecasting, as an illustration, to determine the number of raw material requirements by using the analysis method, Material Requirement Planning with lot sizing measurements used are Lot for Lot, Economic Order Quantity, and Period Order Quantity. Of the three methods, the analysis results illustrate that the Lot for Lot method produces the lowest total cost of IDR. 56,160,000, compared to the total costs incurred using the company's conventional method of IDR. 175,985,288,2, So, the Material Requirement Planning method can reduce the company's inventory costs

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

JUMINTEN ◽  
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).

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

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

scholarly journals PERBANDINGAN MODEL LOT SIZING BERBASIS MATERIAL REQUIREMENT PLANNING UNTUK MENGOPTIMALKAN BIAYA PERSEDIAN

Heuristic ◽  
2018 ◽  
Vol 15 (02) ◽  
Author(s):  
Dian Setiya Widodo
Keyword(s):  
Lot Sizing ◽  
Economic Order Quantity ◽  
Economic Order ◽  
Order Quantity ◽  
Material Requirement Planning ◽  
Material Requirement

Persediaan menjadi sangat penting untuk melancarkan aktivitas proses produksi. Artikel ini bertujuan untuk menentukan lot sizing optimal dengan meminimalkan biaya persediaan. Untuk mendapatkan lot sizing optimal dengan membandingkan model lot sizing menggunakan Lot For Lot, Economic Order Quantity, Period Order Quantity  dan Algorithm Wagner Within berbasis Material Requirement Planning untuk mendapatkan biaya persediaan minimal. Dari hasil perhitungan dengan membandingkan model-model lot sizing Lot For Lot, Economic Order Quantity, Period Order Quantity dan Algorithm Wagner Within, ditunjukkan bahwa Algorithm Wagner Within memberikan  total  biaya persediaan  lebih minimal dengan  biaya perediaannya  sebesar  Rp. 927,600. dibandingkan teknik lot sizing lainnya.Kata kunci: Biaya Persediaan, Lot sizing, MRP

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

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.

scholarly journals PERENCANAN MATERIAL PRODUK SANDAL DENGAN METODE MATERIAL REQUIREMENT PLANNING (MRP)

2020 ◽  
Vol 3 (1) ◽  
pp. 59
Author(s):  
Syahreen Nurmutia
Keyword(s):  
Lot Sizing ◽  
Exponential Smoothing ◽  
Economic Order Quantity ◽  
Economic Order ◽  
Order Quantity ◽  
Material Requirement Planning ◽  
Material Requirement

Analisis Perencanaan Kebutuhan Bahan Baku Sandal Spon Polos Menggunakan Metode Material Requirement Planning (MRP) Di Identic Footwear untuk membantu perusahaan dalam melakukan perencanaan kebutuhan bahan baku secara efektif dan efisien. Hasil dari perhitungan metode peramalan tersebut yang terpilih adalah metode peramalan Exponential Smoothing karena memiliki tingkat keakurasian yang tinggi. dengan Jadwal Induk Produksi diketahui kebutuhan untuk eva spon 12 mm sebanyak 32 lembar, teli webbing 1253 m, dan label merek 1566 sebanyak pieces. Perencanaan untuk kebutuhan bahan baku dengan metode MRP menggunakan dengan teknik lot sizing, dimana teknik-teknik lot sizing yang digunakan adalah teknik Economic Order Quantity (EOQ), Periode Order Quantity (POQ), dan Lot For Lot (LFL). Berdasarkan hasil perhitungan yang dilakukan penulis, teknik Periode Order Quantity (POQ) menghasilkan total biaya persediaan yang paling kecil dengan total biaya persediaann eva spon 12 mm Rp. 451.539, tali webbing Rp. 288.315, dan label merek Rp. 187.519.

scholarly journals ANALISIS PENGENDALIAN BAHAN BAKU MENGGUNAKAN METODE EOQ (ECONOMIC ORDER QUANTITY) (STUDI KASUS PADA PT MISAJA MITRA CO.LTD)

2011 ◽  
Vol 1 (2) ◽  
pp. 144
Author(s):  
Wahyu Tri Pamungkas ◽  
Aftoni Sutanto
Keyword(s):  
Raw Materials ◽  
Cost Savings ◽  
Raw Material ◽  
Economic Order Quantity ◽  
Economic Order ◽  
Order Quantity ◽  
Total Cost ◽  
Material Cost ◽  
The Difference

Research and results of the calculations carried out, when using the EOQ method in the procurement of raw material cost savings will be obtained. If the organization of the raw materials based on EOQ methods, there will be cost savings in 2008 amounted to Rp303.763.020,- in 2009 amounted Rp393.450.766,- the year 2010 amounted to Rp411.567.748,-. Thus, it means that there are very real differences between the policies conducted by Inventory Company with the calculation according to the EOQ.From the results above, it can be concluded that the supply of raw materials each year has the difference of raw material inventory, the frequency of buying raw materials when using the EOQ method is 2 times in one period (1year), limit or point of ordering raw materials which is needed by the company when using the EOQ method of 2008 amounted to 9188.81 kg in 2009 amounted to 9869.47 kg and 2010 amounted to 11105.52 kg. Total cost of raw materials inventory, calculated according to the EOQ which is less than that released by the company, then there are cost savings when the company uses EOQ method in term of raw material inventory.

scholarly journals ANALISIS PERANCANGAN BAHAN BAKU BERBASIS LISTRIK BERDASARKAN METODE MATERIAL REQUIREMENT PLANNING (MRP) PADA PT. PLN (PERSERO) PUSAT LISTRIK MASOHI

ARIKA ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 1-16
Author(s):  
N. E. Maitimu ◽  
Anton Tonapa
Keyword(s):  
Fast Moving ◽  
Lot Sizing ◽  
Economic Order Quantity ◽  
Economic Order ◽  
Order Quantity ◽  
Material Requirement Planning ◽  
Material Requirement

Permintaan akan tenaga listrik yang semakin meningkat membutuhkan persediaan bahan bakar dan material fast moving yang cukup sebagai bahan baku utama dalam penyediaan tenaga listrik. MRP suatu teknik atau prosedur logis untuk menterjemahkan Jadwal Induk Produksi (JIP) dari barang jadi atau end item menjadi kebutuhan bersih untuk beberapa komponen yang dibutuhkan untuk mengimplementasikan JIP. PT PLN (Persero) Pusat Listrik Masohi dalam melakukan permintaan bahan bakar untuk pembangkit listrik dilakukan secara bulanan dan dilakukan pemantauan secara online perhari dimana diperlukan ketepatan pelaporan dan penyediaan bahan bakar untuk penyediaan tenaga listrik yang dinamis. Kebutuhan bahan baku untuk produksi tenaga listrik PT PLN (Persero) Pusat Listrik Masohi telah menggunakan pendekatan metode Economic Order Quantity (EOQ) dalam proses pengadaan material bahan baku. Penelitian ini mendapatkan hasil penggunaaan Metode lot sizing Lot-For-Lot, Economic Order Quantity, Part Period Balancing yang optimal untuk digunakan pada Pusat Listrik Masohi adalah Part Period Balancing. Dengan menggunakan metode Part Period Balancing, perusahaan dapat   mengurangi   biaya   persediaan   sebesar   Rp 1,739,053,883,- , atau sebesar 2,88 % dari total biaya dari metode perusahaan.

scholarly journals ANALISIS METODE ECONOMIC ORDER QUANTITY (EOQ) SEBAGAI DASAR PENGENDALIAN PERSEDIAAN BAHAN BAKU (STUDI PADA YANKEES BAKERY, KECAMATAN KERTOSONO)

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Selvi Santosa ◽  
Gandung Satriyono ◽  
Rinto Nur Bambang
Keyword(s):  
Data Analysis ◽  
Wheat Flour ◽  
Raw Materials ◽  
Raw Material ◽  
Economic Order Quantity ◽  
Economic Order ◽  
Order Quantity ◽  
Total Cost ◽  
The Third ◽  
The Cost

            The current study aims to analyze the supply of raw materials for yankees bakery bread specifically for wheat flour, granulated sugar. This research is done for 2 months, from January to February 2018. Data analysis is used by researchers using the EOQ (Economic Order Quantity) to carry out orders to determine how many orders. From the results of this study the amount of inventory is optimal, EOQ of wheat flour in the third quarter of 2017 is 4,807.29 kg, dosage is 137.28 kg, done (ROP), the remaining stock is 265.68 kg, the total cost is Rp. 971,420. The fourth quarter of 2017 is 5,217.66 kg frequency 2 times, safety supplies 69 kg, reorder (ROP) stocks in warehouses remaining 198.11 kg, the total cost of inventory is Rp. 1,054,346. Based on the results of the study concluded that EOQ is more efficient. Then the cost of the raw material for Yankees Bakery is used EOQ in the supply of raw materials. Penelitian saat ini bertujuan menganalisis sediaan bahan baku roti yankees bakery khusus bahan tepung terigu, gula pasir. Penelitian yang ini dikerjakan lamanya 2 bulan, dari bulan Januari hingga bulan Februari 2018. Analisis data dipergunakan peneliti menggunakan EOQ (Economic Order Quantity) melaksanakan pesanan menentukan seberapa banyak pesanan. Dari hasil penelitian ini jumlah persediaan menjadi optimal, EOQ tepung terigu triwulan tiga tahun 2017 banyaknya 4.807,29 kg, sediaan 137,28 kg, dilakukan (ROP) sediaan sisa 265,68 kg, total biaya Rp. 971.420. Triwulan keempat tahun 2017 sebanyak 5.217,66 kg frekuensi 2 kali, persediaan pengaman 69 kg, melakukan pemesanan ulang (ROP) sediaan di gudang tersisa 198,11 kg, total biaya persediaan sebesar Rp. 1.054.346. Berdasarkan hasil penelitian disimpulkan EOQ lebih efisien. Maka hematan biaya sedia bahan baku Yankees Bakery gunakan EOQ di sediaan bahan baku.

ANALISIS PENERAPAN MATERIAL REQUIREMENT PLANNING (MRP) DENGAN MEMPERTIMBANGKAN LOT SIZING

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Suparno Suparno
Keyword(s):  
Lot Sizing ◽  
Economic Order Quantity ◽  
Economic Order ◽  
Order Quantity ◽  
Lot Size ◽  
Material Requirement Planning ◽  
Material Requirement

CV. restu Ibu merupakan salah satu industri furniture di Kabupaten Gresik yang mengolah kayu jati menjadi aneka meubel. Meubel yang diproduksi adalah pintu, meja, kursi, almari dan kusen. Sistem pengendalian bahan baku yang tidak terstruktur menjadi permasalahan yang dihadapi oleh perusahaan. Metode yang digunakan perusahaan saat ini dalam pengelolaan bahan baku hanya menggunakan perhitungan konvensional tanpa melakukan suatu peramalan atau perencanaan yang baik. Penelitian ini bertujuan untuk menentukan metode Lot Sizing yang efektif diterapkan perusahaan dalam perencanaan bahan baku untuk mengetahui perbandingan total persediaan. Metode yang digunakan dalam penelitian ini adalah Material Requirement Planning (MRP). Metode Material Requirement Planning(MRP) digunakan dengan menggunakan dua metode Lot Sizing yang berbeda yaitu metode Lot For Lot dan Lot Economic Order Quantity. Hasil penelitian menunjukkan bahwa metode peramalan dekomposisi merupakan metode peramalan yang memiliki tingkat kesalahan peramalan terkecil yaitu dengan nilai MSD produk pintu 23.1989,kursi 33.4377, almari 23.0874, meja 23.0874, dan kusen 12.4765.  Perencanaan kebutuhan bahan baku yang dibuat berdasarkan hasil peramalan permintaan produk di CV. Restu Ibu menunjukkan teknik Lot Size terbaik adalah Lot For Lot. Teknik Lot For Lotmenghasilkan biaya persediaan terendah sebesar Rp2,563,992dibandingkan dengan teknik Lot Economic Order Quantity yang menghasilkan biaya sebesar Rp3,169,394.

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