scholarly journals An Investigation of a Supply Chain Model for Co-Ordination of Finished Products and Raw Materials in a Production System under Different Situations

2021 ◽  
Vol 13 (22) ◽  
pp. 12601
Author(s):  
Dharamender Singh ◽  
Anurag Jayswal ◽  
Majed G. Alharbi ◽  
Ali Akbar Shaikh
Keyword(s):  
Production System ◽  
Raw Materials ◽  
Transportation Cost ◽  
Raw Material ◽  
Production Model ◽  
Chain Model ◽  
Direct Function ◽  
Multiple Markets ◽  
Demand Rate ◽  
Holding Cost

In the production system, the production of a perfect item is essential for existing competitive market situations. To produce a perfect finished product, the quality of a raw material is a crucial issue of a production system. This paper has examined this issue with an insightful production-inventory model of the manufacturer of a deteriorating item selling goods to multiple markets with different selling seasons. We have provided an answer strategy to track down the optimal production plan for raw materials and the ideal creation plan for completed items. Transportation cost was incorporated for transporting the raw material. Marketing of the finished product is another crucial factor for selling products and earning revenues. The main objective of the present study is to adopt a production model in inventory for inferring request capacities for multi-item, multi-outlet circumstances. As of late, much accentuation has been given to the consideration of the control and support of creation inventories of disintegrating things. The demand rate is persistent and holding cost is a direct function of time. This paper has followed an analytical approach to diminish the entire inventory cost. Finally, a sensitivity analysis was performed to study the effect of changes of different parameters of the model on the optimal policy. Moreover, in order to approve the determined models, we have clarified mathematical models and examined affectability.

scholarly journals Joint lot sizing and scheduling of a multi-product multi-period supply chain

2019 ◽  
Vol 10 (5) ◽  
pp. 1516
Author(s):  
Ahmed Othman El-meehy ◽  
Amin K. El-Kharbotly ◽  
Mohammed M. El-Beheiry
Keyword(s):  
Supply Chain ◽  
Lot Sizing ◽  
Raw Materials ◽  
Supply Chain Design ◽  
Raw Material ◽  
Design Parameters ◽  
Distribution Centers ◽  
Lot Size ◽  
Holding Cost ◽  
Lot Sizing And Scheduling

The joint lot sizing and scheduling problem can be considered as an evolvement of the joint economic lot size problem which has drawn researchers’ interests for decades. The objective of this paper is to find the effect of a capacitated multi-period supply chain design parameters on joint lot sizing and scheduling decisions for different holding and penalty costs. The supply chain deals with two raw materials suppliers. The production facility produces two products which are shipped to customers through distribution centers. A mathematical model is developed to determine optimum quantities of purchased raw materials, production schedule (MPS), delivered quantities and raw material and products inventory for predetermined number of periods. The model is solved to maximize total supply chain profits. Results showed that at high capacity and low holding cost, the supply chain tends to produce only one product each period, for limited capacity and high value of holding cost, the supply chain may produce the two products together each period.

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 PENGELOLAAN RANTAI PASOK TEPUNG KELAPA PADA PT. XYZ DI SULAWESI UTARA

2017 ◽  
Vol 13 (1) ◽  
pp. 81
Author(s):  
Chintya Stefanny Anis ◽  
Agnes E. Loho ◽  
Grace A. J. Rumagit
Keyword(s):  
Supply Chain ◽  
Supply Chain Management ◽  
Information Flow ◽  
Raw Materials ◽  
Relevant Literature ◽  
Secondary Data ◽  
Raw Material ◽  
Primary Data ◽  
Chain Model ◽  
Chain Management

The purpose of this study are: (1) Identify the supply chain model of coconut desiccated at PT. XYZ and (2) to analyze the supply chain management of desiccated coconut at PT. XYZ. The research was conducted over 2 months ie from September to November 2016 and is located in PT. XYZ (pseudonym), in North Sulawesi. The data used in this research are primary and secondary data. The primary data obtained through field observation and direct interviews. Interviews were conducted with the company related logistics company to find a picture of the supply chain and supply chain management is done by the company. In addition, the researchers also conducted interviews with coconut farmers and collectors to determine the condition of the current coconut price as well as the flow of raw material coconuts from the famers to supplier. Secondary data were obtained from the relevant literature, as well as documents and reports that are owned by companies and agencies. This study focuses on the management of the flow of material and information flow of the supply chain of coconut flour at PT. XYZ. The results of observations and interviews were analyzed with descriptive qualitative analysis methods. The results showed that (1) Members of coconut flour supply chain at. XYZ, namely (a) the raw material supplier of coconut spread in some areas, (b) PT. XYZ for purchasing, sales, shipping and production, (c) Expediting Services to send products from Bitung harbor, next to the port of Tanjung Priok to be exported to the country of destination, (d) The customer, in this case the food companies that require raw materials coconut flour to be produced into chocolate bars, cookies, dessert, and so forth. (2) (a) Selection of supplier PT. XYZ is good enough, because every supplier who will supply the raw material to go through the interview stage, made a deal with the company and agree to the terms proposed by the company. PT. XYZ also maintain good relations with its suppliers with visits annually; (b) the flow of material and information flow is managed by PT. XYZ is good enough. Any information purchasing, sales, shipping and finance centered PT.XYZ headquarters is located in Manado and PT. XYZ manage information about the quantity of raw materials available in the warehouse and general condition of the plant.

scholarly journals Cost Analysis of Various Factors for Geopolymer 3D Printing of Construction Products in Factories and on Construction Sites

Recycling ◽  
2021 ◽  
Vol 6 (3) ◽  
pp. 60
Author(s):  
Qaisar Munir ◽  
Timo Kärki
Keyword(s):  
3D Printing ◽  
Carbon Dioxide Emissions ◽  
High Performance ◽  
Raw Materials ◽  
Research Work ◽  
Transportation Cost ◽  
Raw Material ◽  
Low Carbon ◽  
Construction Sites ◽  
Construction Products

The utilization of geopolymer 3D printing for construction products in recent years has been exceptionally substantial, owing to their low carbon dioxide emissions, high-performance properties such as durability, and good thermal and mechanical properties. This automated manufacturing process reduces the need for additional formworks, capital investments, and human resources. Geopolymer 3D printing development is emerging because of its advanced use in construction applications. However, high costs of the initial stages of geopolymer production and 3D printing has inhibited the development of this technology in many countries. This research presents a comprehensive economic evaluation of the investment for each principal stage that facilitates a better deployment of the resources. The study investigated all phases of geopolymer production, from the extraction of raw materials to printing. The cost for the four fundamental stages, namely raw material availability and transportation, pretreatments for raw materials, parameter selection and strength requirements, and printing in factories and on construction sites, were analyzed. The results show that 3D printing of a geopolymer on a construction site is economically more advantageous compared to printing in the factory. The study also verified that raw material transportation cost has the least effect on the finished product cost, whereas pretreatments of raw material and mixing parameters significantly influenced the ultimate cost of the product. Finally, research work suggested the need for future tasks to make geopolymer 3D printing a viable construction approach.

scholarly journals Tinjauan Kapasitas Persediaan Produk Fuji Seat PT. Tri Jaya Teknik Karawang

2021 ◽  
Vol 5 (1) ◽  
pp. 33
Author(s):  
Aries Adiyanto ◽  
Dene Herwanto
Keyword(s):  
Raw Materials ◽  
Raw Material ◽  
Economic Order Quantity ◽  
Economic Order ◽  
Order Quantity ◽  
Administrative Costs ◽  
Eoq Model ◽  
Engineering Company ◽  
Holding Cost ◽  
The Cost

PT. Tri Jaya Teknik Karawang is an engineering company engaged in fabrication, machining and side parts. PT. Tri Jaya Teknik started pioneering a business since 2007 and started owning and occupying its own workshop in 2009. Currently the company already has 2 plant workshops with a total area of 3,080 m2 and has about 100 employees. One of the products produced is Fuji seat, based on the data collected there are 3 parts of the process. The 3 parts of the process are repair 1, repair 2, repair 3. With each there is a check parts & packing table. The method used in companies to manage raw material inventories is still conventional, namely by making continuous purchases without estimating according to needs. So that there is often an excess of raw materials or a shortage of raw materials at a certain time, this makes the costs incurred inefficient and often disrupts the production process. A review of the inventory capacity of Fuji Seat products in this study was carried out using the Economic Order Quantity (EOQ) model. The main raw material inventory data used is Fuji Seat in the 2016-2019 period. Holding cost raw materials is set by PT. Tri Jaya Teknik Karawang is 2.5% of the price per pcs, this value is used for procurement and repair of tools and equipment in the warehouse. If there is no damage, the cost is allocated to the warehouse manager in that month. Meanwhile, the cost of ordering which consists of the price of goods and shipping costs is determined by PT. Tri Jaya Teknik Karawang, amounting to IDR 100,000.00. This fee includes administration and transportation costs. Administrative costs, namely executive salaries and other supporters, as well as taxes related to the company. The cost of shipping transport is the distance traveled and the weight of the product ordered. Based on the calculation of EOQ (Economic Order Quantity), the most economical amount of raw materials using the EOQ model is 6,815.5 Pcs with 187 purchases a year. PT. Tri Jaya Teknik Karawang adalah perusahaan engineering yang bergerak di bidang fabrikasi, machining dan part samping. PT. Tri Jaya Teknik mulai merintis bisnis sejak tahun 2007 dan mulai memiliki dan menempati workshop sendiri di tahun 2009. Saat ini perusahaan telah memiliki 2 plant workshop dengan total luas 3.080 m2 dan memiliki karyawan berjumlah sekitar 100 orang. Salah satu produk yang dihasilkan adalah fuji seat, berdasarkan data yang dikumpulkan ada 3 bagian proses. 3 bagian proses itu adalah repair 1, repair 2, repair 3. Dengan masing-masing terdapat meja check part & packing. Metode yang digunakan pada perusahaan untuk mengelola persediaan bahan baku masih secara konvensional, yaitu dengan melakukan pembelian terus menerus tanpa memperkirakan sesuai dengan kebutuhan. Sehingga seringkali terjadi kelebihan bahan baku atau kekurangan bahan baku di saat tertentu, hal ini membuat biaya yang dikeluarkan menjadi tidak efisien dan sering kali mengganggu proses produksi. Tujuan penelitian ini yaitu mampu mengetahui perhitungan EOQ dan frekuensi pembelian yang paling ekonomis dalam perusahaan. Tinjauan kapasitas persediaan produk Fuji Seat dalam penelitian ini dilakukan dengan menggunakan model Economic Order Quantity (EOQ). Data persediaan bahan baku utama yang digunakan adalah Fuji Seat pada periode 2016-2019.Biaya penyimpanan bahan baku di tetapkan oleh pihak PT. Tri Jaya Teknik Karawang sebesar 2,5% dari harga per pcs, nilai tersebut digunakan untuk keperluan pengadaan dan perbaikan 

Optimal Attainment of Production Rates for a Multi-Stage Kanban Managed Production System With Time Varying Demand

2008 ◽  
Author(s):  
Yunmei Fang ◽  
Y. J. Lin
Keyword(s):  
Production System ◽  
Raw Materials ◽  
Raw Material ◽  
Time Varying ◽  
Operation Planning ◽  
Production Rates ◽  
Supply Chain System ◽  
Work In Process ◽  
Multi Stage ◽  
Varying Demand

This paper delves into the evaluation of an operation planning for a realistic multi-stage, single-product Kanban managed production system with time varying production rates and finished goods demands. The study pursued is to dynamically and systematically manipulate the production rate of each stage and the raw material orders at the first stage which are corresponding to the minimum integrated inventory costs incurred due to raw materials, finished products and work-in-process (WIP) inventories under a varying demand of finished product. Simulation results verify the effectiveness of the proposed operation planning methodology for a multistage Kanban managed production and supply chain system.

scholarly journals Analisis Pengelompokkan Persediaan Jenis Bahan Baku Rotan dengan Menggunakan Metode ABC

2018 ◽  
Vol 2 (3) ◽  
Author(s):  
Muhammad Sayuti
Keyword(s):  
Production System ◽  
Raw Materials ◽  
Raw Material ◽  
Class A ◽  
Total Percentage ◽  
Class B ◽  
Class C ◽  
Abc Method ◽  
Industrial Company

PT Bumi Selawah kab.pidie is an industrial company that was founded under perhaps the industry kab.pidie engaged in furniture products are made from rattan. In a production system the company has not classifying products which require priority highest amount of raw material. This is evident from observations in 2014-2015. Where the supply of raw materials is different each year. In 2014 the company supplying raw rattan by 20 tons, which is used only 12 tons, in 2015 the company supplied 10 tons, which is used only 9 tons. The results showed that the total percentage of absorption of funds amounting to 99.6%, where the cumulative percent of items of goods, Rattan Semanow (24-29) 11.11%, Rattan Semanow (40) 22.22%, Rattan Semanow (35-39) 33.33%, Rattan Semanow (18-23) 44.44%, 55.55% Track Rattan, Rattan Fega 66.66%, Semanow (30-34) 77.77%, Semanow (15-17) 88, Rattan Semanow 88% and 99.99%. There are 4 items that belong to class A, which supplies high-end, inventories are valued are classified in class B, and supplies the low value belongs to the class C so that the company can determine how much cane is needed for each category of the classification of the raw materials of rattan these, and order can be made as needed.Keywords: Inventory, ABC method, Rattan

scholarly journals Evaluation of Raw Material Inventory in Socks Home Industry Using Economic Order Quantity (EOQ)

2021 ◽  
Vol 11 (4) ◽  
pp. 4561-4572
Author(s):  
Haridhsah Hilmi Septiawan ◽  
Rorim Panday
Keyword(s):  
Raw Materials ◽  
Raw Material ◽  
Economic Order Quantity ◽  
Economic Order ◽  
Order Quantity ◽  
Literature Study ◽  
Inventory Costs ◽  
Analysis Technique ◽  
Holding Cost ◽  
Total Inventory

This study aims to evaluate purchasing raw materials and the Home Industry Socks by using the Economic Order Quantity (EOQ) method and the compare to the company's actual method. And to find out whether the EOQ method is effective to be applied to the company. The data used in this study are in the form of notes, reports, and company documentation for the period 2017, 2018, and 2019 provided by the owner through observation, interview, documentation, and literature study. Meanwhile, the usage data, raw material prices, and raw material purchase data are obtained from company records. The analysis technique in this study used EOQ formula, standard deviation, safety stock, Total Holding Cost, Total Ordering Cost, and Total Inventory Cost. The result of this research is that EOQ method is effective to be applied to socks home industry companies to control inventory more efficiently because it can minimize inventory costs.

scholarly journals Model Rantai Pasok Pada Sistem Produksi Menggunakan Petri Net dan Aljabar Max Plus

2019 ◽  
Vol 5 (01) ◽  
pp. 1-8
Author(s):  
Ahmad Afif ◽  
Dian Mustofani
Keyword(s):  
Supply Chain ◽  
Petri Net ◽  
Production System ◽  
Production Systems ◽  
Raw Materials ◽  
Chain Model ◽  
Efficient Manner ◽  
Goods And Services ◽  
Algebra Approach ◽  
Supply Chain Analysis

Abstract. Supply chain production system is a process of coordination and integration of activities ranging from the procurement of goods and services, transforming raw materials into semi-finished goods and finished goods, to distribute to the consumers in an efficient manner. Supply chain analysis is used to regulate the supply of the production system so as not to overload so that it can reduce the costs of the entire production system which includes the costs of processing, transportation and distribution of raw materials, semi-finished goods and finished goods. Petrinet can describe the supply chain model as a dynamic production systems with discrete events with max plus algebra approach to help calculate the length of time in the distribution and production in the supply chain. Keywords: supply chain, production system, petri net, max plus algebra   Abstrak. Rantai pasok pada sistem produksi merupakan proses koordinasi dan integrasi kegiatan mulai dari pengadaan barang dan jasa, mengubah bahan baku menjadi barang setengah jadi dan barang jadi, hingga mendistribusikan kepada konsumen dengan cara efisien. Analisis rantai pasok dipakai untuk mengatur pasokan dari sistem produksi supaya tidak terjadi overload sehingga dapat mengurangi biaya dari keseluruhan sistem produksi yang meliputi biaya pengolahan, transportasi dan distribusi bahan baku, barang setengah jadi dan barang jadi. Petrinet dapat menggambarkan model rantai pasok sebagai sistem produksi yang dinamis dengan kejadian diskrit dengan pendekatan aljabar max plus untuk membantu menghitung lamanya waktu dalam pendistribusian dan produksi dalam rantai pasok. Kata kunci : rantai pasok, sistem produksi, petri net, aljabar max plus

scholarly journals Optimasi Persediaan Bahan Baku Deker melalui Metode Material Requirement Planning pada CV Ajax Sport

2021 ◽  
Vol 3 (2) ◽  
pp. 54-64
Author(s):  
Tombak Gapura Bhagya ◽  
Elly Komala
Keyword(s):  
Production System ◽  
Raw Materials ◽  
Raw Material ◽  
Optimal Production ◽  
Material Requirement Planning ◽  
Material Requirement ◽  
Initial Process

Inventory of raw materials is the initial process in planning and controlling production. Because by planning and controlling raw materials, it becomes one of the processes to produce an optimal production system. In order for raw material inventory to be controlled, the MRP method is used in its completion. In the case study at CV Ajax Sport, it is known that controlling raw material inventory using MRP produces an inventory value of Rp. 139,911,944,- for 12 weeks, with the number of orders for F300 raw materials as many as 71,716 units and for G300 raw materials as many as 67,297 units. And this value shows a very large value both financially and product units, so it must be managed appropriately and accurately.

Sign in / Sign up

Export Citation Format

Share Document