Raw Material Inventory Control Research Articles

ANALISIS EFISIENSI PENGENDALIAN PERSEDIAAN BAHAN BAKU DENGAN MENGGUNAKAN METODE ECONOMIC ORDER QUANTITY DAN METODE ECONOMIC PRODUCTION QUANTITY PADA ROTI GANEP SOLO

Roti Ganep Solo is a company engaged in the food industry, especially bread whose main raw materials are glutinous rice flour, wheat flour, and arrowroot flour, because companies still use conventional methods in controlling raw material inventory, by introducing the method of economic order quantity and the method of economic production quantity are expected to be used to optimize the supply of raw materials by the company. EOQ a method by which a company purchases raw materials with the quantity of goods obtained as well as minimal cost, while EPQ is a method used to consider between the amount of production and the amount of demand for production. Based on this application of the EOQ method and the EPQ method can play a role ini streamlining the control of raw material inventory at Roti Ganep Solo. Hal tersebut ditunjukan dengan total biaya persediaan bahan baku menggunakan metode EOQ Rp 4.988.477 with an average purchase of 1.726 kg with 14 orders, while using the conventional method the company has a total inventory cost of Rp 5.062.488 with the purchase of 2.500 of raw material per month, for the use of the EPQ method produce a total annual cost of Rp 17.209.464 for an average purchase of 44.870 pcs, whereas using the conventional method the company produces an average raw material of 56.484 pcs.

Analisis Peramalan Permintaan dan Pengendalian Persediaan Bahan Baku Body Scrub Powder di CV. Denara Duta Mandiri

This study aims to analyze the demand forecasting of body scrub powder products in October 2019 and the level of raw material inventory body scrub powder optimal in order to minimize the total cost of inventory in CV. Denara Duta Mandiri. Forecasting analysis using time series model with 3 methods of Moving Averages with 2, 3 and 4 month time period, exponential smoothing method with ? = 0.1, ? = 0.5, ? = 0.9 and Trend Projection. To analyze the value of forecasting accuracy, the method used are Mean Absolute Deviation (MAD) and Mean Squared Error (MSE). The results show that the Trend Projection method is the most effective method that can be used as the basis for determine body scrub powder products demand, with the result of forecasting demand is 562 kg and the value of forecasting accuracy, MAD = 76,97, MSE = 9.760,12. The results of Economic Order Quantity (EOQ) showed that total cost of raw material inventory control body scrub powder at CV. Denara Duta Mandiri by using EOQ smaller than the methods used by the company. CV. Denara Duta Mandiri management should try to apply the EOQ method in terms of supply of raw materials so that the company can better minimize inventory costs. 
 Keywords: demand forecasting, raw material, Economic Order Quantity (EOQ)

ANALISIS PENGENDALIAN PERSEDIAAN BAHAN BAKU DENGAN MENGGUNAKAN METODE MATERIAL REQUIREMENT PLANNING PADA PT. DAN LIRIS DI SUKOHARJO

The purpose of this research is to analyze the efficiency of raw material inventory control system PT. Dan Liris as well as analyzing the application of material requirement planning method in optimizing inventory control raw materials in PT. Dan Liris. This research is a case study on PT. Dan Liris. The data type used is qualitative data and quantitative data. The data source in research using secondary data. Methods of data collection were used: interviews, observation and documentation. Technique of data analysis using the techniques of Material Requirements Planning (MRP). Based on the results of research: the raw material needs planning Policy implemented by the PT. Dan Liris yet structured, it is apparent from the raw material procurement system which uses a method of forecasting in accordance with sales targets. Application of the method of Material Requirements Planning can play a role in optimize raw material inventory control PT. Dan Liris, it is shown in the total cost of the inventory using the technique of Lot For Lot is Rp 40.2 million, total the cost of inventories using the techniques of Economic Order Quantity amounting to Rp 44,541,085 and the total cost of the inventory using the policy of the company amounting to Rp 119,548,146. From the comparison it can be noted that a very effective technique to achieve cost-efficiency the total inventory of raw materials is the technique of Lot For Lot.

Economic Order Quantity to Control Raw the Materials Inventory on “Zaskya Bakery” Home Industry

Zaskya Bakery Home Industry is one of the small industries that produce various types of sweet bread in Central Bengkulu Regency. Optimal raw material inventory control is essential for companies to make the production process good. The economic order quantity (EOQ) method is the basic method of inventory control by finding the minimum point between ordering costs and storage costs. The purpose of this study was to determine the inventory control of some raw materials in the Zaskya Bakery Home Industry by using EOQ. Survey and observation with a quantitative descriptive approach are The methods used in this research. Data analysis uses the calculation formula of EOQ, total inventory cost, safety stock, and reorder point. The results showed that the application of the EOQ method in controlling raw material inventory was an emphasis on inventory costs on the Zaskya Bakery Home Industry. The Efficiency of the quantity of raw material ordering each time order, the time of re-ordering of raw materials, as well as the quantity of safety inventory can be known.

ANALISIS PENGENDALIAN PERSEDIAAN BAHAN BAKU DENGAN MENGGUNAKAN METODE ECONOMIC ORDER QUANTITY (EOQ) DAN METODE MIN-MAX

The research carried out is the analysis of raw material inventory control using the economic order quantity (EOQ) method and the Min-Max method. The EOQ method is a method of reducing production costs to a minimum of raw material supplies. Meanwhile, controlling raw materials using the Min-Max method serves to avoid shortages of raw material inventory that result in losses and determine reorder points. Research and the results of calculations carried out when using the EOQ method in the procurement of raw materials will get cost savings. Where the results of the analysis of the total cost of inventory. (TIC) raw materials for wheat flour for 3 consecutive years (2017-2019) based on the EOQ method experienced savings of up to IDR 4,404,510, analysis of total cost of supplies (TIC) of raw sugar for 3 consecutive years (2017 -2019) based on the EOQ method, experiencing savings of up to Rp. 2,566,065, analysis of the total cost of inventory (TIC) of butter raw materials for 3 consecutive years (2017-2019) is based on the EOQ method experiencing savings of up to Rp. 486,426, while the results Calculation of raw material inventory is done when using the Min-Max method. Wheat flour raw material inventory for 3 consecutive years (2017-2019) min stock 4,629.65 kg and max stock 313,844.64 kg, granulated sugar raw material inventory for 3 consecutive years (2017-2019) min stock 1,250 kg and max stock 2,378.6 kg, and butter raw material stock for 3 consecutive years (2017-2019 min stock 500 kg and max stock 954.64 kg. The total cost of raw material inventory calculated according to EOQ and Min-Max less (economical / economical) than that issued by the company.

Analisis Pengendalian Persediaan Bahan Baku Kerupuk Mentah Potato Dan Kentang Keriting Menggunakan Metode Economic Order Quantity (EOQ)

<em>The increase in the food industrial sector over the year making food producers experience tighter competition. In this era of intense competition in the food industry, raw material inventory control in PT. Surya Indah Food Multirasa is still facing a problem of lacking raw material in potatoes and curly potatoes every year, which affects in sale loss. This study is conducted to find out the precise amount of order in every raw material purchase, so there is no lack of raw material, at a lower cost. This study uses the Economic Order Quantity (EOQ) method for analyzing raw material control for potatoes and curly potatoes. Comparing the uses of company policy and EOQ. EOQ analysis calculation followed by conducting safety stock (SS) analysis, maximum inventory (MI) analysis, Total Inventory Cost (TIC) analysis, and reorder point (ROP) analysis, therefore, optimal stock for the company can be discovered. The result of EOQ analysis showed that the EOQ method is more efficient than company policy with TIC average difference for potato’s raw material that is Rp. 856.124 and curly potatoes raw material that is Rp. 1.065.989. The average EOQ value of potato’s raw material is 344 kg while curly potatoes are 234 kg. Next is the average SS value for potato raw material is 75 kg while curly potatoes are 35 kg, and the average ROP value for potato raw is 123 kg while curly potatoes are 58 kg. This research also performs forecasting using Winter’s method so that data demand for the year of 2019 can be discovered. The forecast result with the EOQ method for the year 2019 is 371 kg for potato's raw material and 258 kg for curly potatoes.</em>

Production RAW Material Inventory Control Information System at PT. SIIX EMS Indonesia

Application of web-based raw material inventory control information system with a bill of materials (BOM) using the PHP and MySQL programming language as a database, and using the SDLC livestock device engineering method with stages of planning, design, implementation, and testing. I create a recording application that provides information about the availability of raw material reducing the error in calculating the amount of raw material based on the bill of material. With this application, it can help to purchase in determining the number of raw materials needed for production based on the master bill of material data.

Design analysis of raw materials inventory on TC1118 cloth products with JIT approach

Control of inventory of raw materials becomes an important part of the manufacturing process. By controlling good raw materials will reduce storage costs in warehouses, increase productivity and profits of the company. In this paper use quantitative methods that will result in the calculation of the most efficient order quantity to increase the productivity. Based on the just-time approach, control of raw material inventory is done by planning the purchase of raw materials by using the right delivery system so as to produce short delivery time. By ordering one day and added with proper inventory calculation will result in a reorder point in accordance with the company’s production capacity and able to reduce the storage of raw materials in the warehouse. The impact of the implementation of just in time, storage of raw materials in the warehouse becomes less and reduce inventory cost by 9.4%, so as to generate greater profit the company and can make savings of Rp7.581.515.237.

Raw material inventory control system for small companies

For companies, the problem of managing raw material supplies is very important. This requires adequate management techniques. This means that all company operations are carried out in accordance with established plans and procedures and always lead to the goals to be achieved by Integration. Implementation of raw material management requires intensive inspection, so companies need to carry out internal audits. Internal audit inspection must be carried out objectively and independently in carrying out its duties. Problems that arise in this study (1) How is the application of internal audit raw material inventory management at UD company. Makmur Semanding? (2) Whether internal audit raw material inventory management can improve the efficiency and effectiveness of UD company operations. Makmur Semanding? The purpose of this study is (1) to describe how the implementation of internal audit management of raw materials at UD company. Prosperous Semanding. (2) To illustrate whether the internal audit of raw material inventory management can improve the efficiency and effectiveness of UD company operations. Prosperous Semanding. For the purposes of analysis and discussion, the authors use analysis techniques as flow chart analysis tools are used to determine the supply of raw materials to company management. Based on the provisions of Article 3 is the determination of the category value, then by calculating the score of raw material inventory management UD company sales revenue. Makmur Semanding is included in the sufficient category, because the total score is 91, this score is in the range of scores between 62-92.

Pengendalian Persediaan Bahan Baku Nalco Water Treatment Dengan Menggunakan Metode Lot Sizing

The limited supply of Nalco raw materials from producers has become a problem for PT ABC, this has led to the control of raw material inventory at PT ABC not including good management, because in the management of raw materials the company still records inventory with manual systems and in ordering raw materials only based on estimates. From the results of the study, the forecasting method used is the Double Exponential Smoothing Holt's, Brown, and Holt Winters Additive Algorithm methods, from the three methods that are most suitable is the Double Exponential Smoothing Brown method with the smallest Mean Square Error of 256.2. Calculation of Sizing Lot by using Economic Order Quantity method, Least Unit Cost method, and Silver Meal method, of the three methods the most optimal is the Economic Order Quantity method because it has the lowest cost of Rp. 12,651,145. The calculation of Safety Stock gets 17 Pail results. and for Reorder Points for Nalco Water Treatment raw material, which is 29 Pail.

Adaptive Neuro-Fuzzy Inference System (ANFIS) Approach to Raw Material Inventory Control at Pt XYZ

Raw material inventory control is important thing for food companies. The adaptive inventory control is able to adapt to changes in the environment, maintain system performance and stability in the face of various problems in the industry, one of which can be applied to controlling raw material inventories. PT XYZ is a jelly drink industry that has a high level of raw material inventory. In 2016 the investment costs incurred by PT XYZ for carrageenan raw materials ranged from 55–566 million IDR. Costs incurred are quite high and require considerable handling in their maintenance. Therefore, a solution is needed to minimize inventory costs without disturbing the business process. The purpose of this study is to analyse the raw materials inventory PT XYZ for jelly drink product. The analysis is carried out on the main raw material, namely agar (carrageenan) which has three suppliers. The method used is BPMN 1.0 and ANFIS (Adaptive Neuro Fuzzy Inference Systems) which form rules of raw material control rules. This method is an alternative decision making and accommodates flexibility in the form of frame work that accommodates uncertainty of information or data that is less accurate. This study uses four input parameters, namely production demand, raw material arrival, usage and stock. The output obtained is in the form of inventory costs. The results of the study are information regarding the role of each actor who stores important data as a sequence of decision making. The application of ANFIS to design a raw material inventory control system using epoch 50 produces 90 rules of rules with testing errors. The average test for the training dataset is 0, 00077412 and the test and examination dataset is 0, 0006903. Rules of rules obtained can be applied to control raw material inventories.

Raw material inventory control analysis with economic order quantity method

The purpose of this research is to minimize the total cost of raw material inventory more economically in accordance with the production needs. Economic Order Quantity is the method used to support this research. For this purpose, this method generates total inventory cost consisting of a minimum ordering cost and carrying cost. From this result, the inventory level and the number of raw material demand become more economic suitable with the production needs. It is because this method applies two types of cost, carrying cost and ordering cost that make the total inventory cost become more economically. So, this method can use to get the most economical total inventory cost and reduce storage cost swelling.

The Need of Catering Food Materials using Lotting Technique

The purpose of this study is to minimize the purchase cost for each food from the catering menu. Therefore, raw material inventory control method is needed to plan arrival schedule, order schedule, and the amount of ordering of each foodstuff. The technique of determining the amount of ordering (lotting technique) used there are three, namely the least unit cost technique, the lot for lot technique and the least total cost technique. The results of this study indicate that the company can minimize the cost of purchasing food based on lead time, storage time limit, and optimal lotting techniques. Lead time is the period between the order to the delivery time, the storage time limit is how long the best time required for the quality of foodstuffs are maintained, while the lotting technique is the optimal size of order quantity. The lotting technique chosen for each type of food material is different. The cost of purchasing the food consists of the price of the foodstuff, the ordering fee for the type of material and the storage cost for the type of foodstuff. There are 16 types of foodstuffs with the cost of purchasing the smallest raw material with the lot for lot techniques. There are 29 types of foodstuffs with the cost of purchasing the smallest raw materials using the least unit cost techniques. And 10 types of foodstuffs with the least total cost technique as a lotting technique with the purchase of the smallest raw material. Of the 55 types of food raw materials, the company was able to save the cost of purchasing groceries of 33,006,371.75 IDR per month. Of course, in order to apply this planning, the company must provide facilities in order to extend the life of the foodstuff in accordance with predetermined lead time and to ensure the quality of the foodstuff is guaranteed.

THE PERFORMANCE OF APPLE CHIPS SUPPLY CHAIN MANAGEMENT AT SMALL INDUSTRY IN BATU CITY

Batu City is one of well known cities in East Java Province which is as center of tourism destination and also as center of apple production. There is growing small scale industry related to apple processed products, such as apple chips. In an effort to support the supply of raw materials and production planning, it is necessary to know the achievement of supply chain performance in a small industry of apples chips in Batu City. The method used is qualitative analysis to know the system of raw material inventory control and production planning system applied and analyze the performance of supply chain management, supply chain mapping with SCOR (Supply Chain Operations Reference) method, measurement of supply chain performance by using measured performance attribute that is Supply Chain Reliability, Supply Chain Responsiveness and Supply Chain Agility with performance metrics of Perfect Order Fulfillment (POF), Order Fulfillment Cycle Time (OFCT), Upside Supply Chain Flexibility, Upside Supply Chain Adaptability and Downside Supply Chain Adaptability. The results of this study indicate that the system of raw material inventory control and production planning system have been applied. Supply chain mapping, performance measurement of supply chain management need to be developed more to improve supply chain management performance in the small industry apple chips in Batu City.

ANALISIS PENGENDALIAN PERSEDIAAN BAHAN BAKU DENGAN MENGGUNAKAN METODE ECONOMIC ORDER QUANTITY (EOQ) DALAM UPAYA MEMINIMUMKAN BIAYA PRODUKSI PADA CV. DELAPAN-DELAPAN KUNINGAN

The research gap arises from the fluctuation of raw material inventory, the absence of safety stock and reorder point, and research gap from previous research that support EOQ (Economic Order Quantity) method and comparison with conventional method. The study aims to determine: (1) Whether the raw material inventory control method applied by CV. Delapan-Delapan is optimal, (2) Whether the method of EOQ (Economic Order Quantity) minimizes the production cost in CV. Delapan-Delapan, (3) how many optimal order of raw material at CV. Delapan-Delapan, (4) the amount of safety stock at CV. Delapan-Delapan, and (5) The time the CV. Delapan-Delapan do the Re Order Point if the company applies EOQ policy. The analytical method used in this research is descriptive analysis by comparing the total inventory (TIC) of EOQ calculation with total inventory cost (TIC) of conventional method. Data analysis techniques in this study uses Economic Order Quantity. The results shows that: (1) CV. Delapan-Delapan has not conducted optimal inventory control method to minimize the cost of economical inventory; (2) By applying EOQ method, the company can save total cost of raw materials of tapioca flour and wheat flour of Rp.17.553.366, - and Rp.11.109.966,- respectively; (3) Optimum raw material quantities for tapioca flour and wheat flour at CV. Delapan-Delapan are 1.441 kg and 1.177 kg, the amount of safety stock of tapioca flour and wheat flour is 1.026 kg and 703 kg, and (5) the company must do the re-order point when the quantity of raw material of raw tapioca flour and wheat flour in the warehouse has reached the amount of 1.199 kg and 811 kg respectively.Keywords: Total Cost Inventory, Re Order Point, Safety Stock, Economic Order Quantity

EVALUASI PENGENDALIAN PERSEDIAAN BAHAN BAKU DENGAN METODE MATERIAL REQUIREMENT PLANNING PADA HOME INDUSTRYSARANA BERSIH “LIMA”

The purpose of this study is to determine the results of Raw Material Inventory Control evaluation with Material Requirement Planning method in May 2014, so the company Home Industry Sarana Bersih " Lima "can minimize inventory costs. Analysis tool used is a method of inventory control with materials requirement planning (MRP) engineering approach. MRP method is a mathematical method or technique that is used to assist managers in making decisions regarding the amount of inventory, production planning schedule, the schedule ordering, and inventory costs. Based on the analysis by using the method of Material Requirement Planning it can be seen that the results of the cost incurred by the company on the stock in May is 1.220.000 rupiah. There are savings of 293.400 rupiah of the total cost of 1.513.400 rupiah.Keywords: Inventory, Inventory control, Material Requirement Planning.

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

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.

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

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.

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

<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>

Pengendalian Persediaan Bahan Baku Oli Untuk Mesin Diesel Tipe G4J-801, G5J-801 dan G7J-801 di PT. Hansan Asembling – Malang

Inventories of raw materials is one of the most important elements in the company's operations are continuously must be obtained, processed and resold. The raw material is meant for the smooth running of production operations set. So, we need an optimum inventory levels to meet the needs of both the quantity, quality and time at a low cost. For that we need a system of planning and inventory control are best - well, that inventories of raw materials should be defined and calculated correctly and accurately in order to obtain a low total cost of inventory that can minimize the cost of production. Forecasting approach is expected to represent the number of actual demand in the coming period. Based on the number of requests of forecasting results can be determined raw material inventory control. By using EOQ then firms will be able to minimize the cost of raw material supplies of oil. Companies should pay attention to the order of recording historical data of oil, classification of costs - the cost of orders and storage costs, because such data is necessary to obtain optimal results inventory control.