scholarly journals LEAN SUPPLY CHAIN UNTUK MENINGKATKAN EFISIENSI SISTEM MANUFAKTUR PADA PT. XYZ

2017 ◽  
Vol 7 (2) ◽  
Author(s):  
Iveline Anne Marie ◽  
Dedy Sugiarto ◽  
Dara Mustika

There were wastes in the supply chain flow of PT. XYZ which leads to long lead time in the delivery of customer orders. The result is that the company's planned delivery targets are not fulfilled. The objective of this research is to identify waste and cause of waste and to propose improvement to eliminate waste in PT XYZ supply chain so as to reduce lead time and achieve delivery target as an effort to improve company performance with Lean Supply Chain approach. In this research we use VALSAT to minimize waste and non value added activities in supply chain flow. Based on Value Stream Mapping and analysis of waste we proposed improvements that is application of acceptance sampling method on raw material inspection, application of p control chart on assembling process and store warehouse, 2 days battery storage time limit with kanban card proposed and also change of process sequence of lead part casting. Based on the projection, we got the decrease of manufacturing lead time and the increase of process cycle efficiency from 51.47% to 73.69%.

2019 ◽  
Vol 5 (1) ◽  
pp. 1-7
Author(s):  
Catur Kusbiantoro ◽  
Ellysa Nursanti

CV. Tanara Textile merupakan salah satu perusahaan tekstil yang termasuk dalam kelompok industri penyempurnaan kain berupa kain kaos. Pada proses produksi di perusahaan masih ditemukan beberapa waste. Penelitian ini bertujuan untuk mengidentifikasi dan menurunkan waste yang terjadi pada proses produksi maka digunakan pendekatan lean manufacturing. Metode Value Stream Mapping (VSM) digunakan untuk pemetaan aliran produksi dan aliran informasi terhadap suatu produk pada tingkat produksi total, melakukan wawancara untuk pembobotan penyebab 7 waste yang sering terjadi pada proses produksi, VALSAT untuk menganalisa pemborosan dari hasil pembobotan yang selanjutnya melakukan detailed mapping tools, serta analisis FMEA untuk mengetahui penyebab kegagalan prosesyang terjadi di lini produksi lalu menghitung nilai RPN tertinggi. Selanjutnya melakukan usulan perbaikan untuk menurunkan waste unnecessary inventory serta menganalisis perbaikan secara berkelanjutan dengan PDCA. Waste terbesar ada pada Unncessary Inventory sebesar 28,571% faktor penyebabnya adalah penumpukan bahan baku, work in process (WIP), sparepart yang tidak terpakai dan penimbunan pada finished goods Sebelum perbaikan proses produksi 16 hari 9 jam dimana Value Added 6 hari 4 jam dan Lead Time 10 hari 4 jam, setelah perbaikan proses produksi menjadi 14 hari 5 jam dimana Value Added 6 hari 4 jam dan Lead Time 8 hari 1 jam, dengan demikian dapat meningkatkan process cycle efficiency sebesar 17,19% dan menghemat lead time sebesar 2,546% dengan penurunan waste sebesar 8,31%


2019 ◽  
Vol 19 (2) ◽  
pp. 61
Author(s):  
Moh. Dian Kurniawan

Sari Bumi Sidayu merupakan salah satu dari beberapa perusahaan manufaktur yang bergerak di bidang produksi Batu Dolomit (lime Stone) dengan memproduksi dolomit berkapasitas 38.300 ton per tahun. Proses produksi yang dilakukan oleh perusahaan dengan mengelola raw material dari batu kapur untuk dibakar kedalam tempat pembakaran dengan tujuan mengurangi kadar H2O yang ada di raw material sehingga mendapatkan kadar CaCo3 yang lebih tinggi antara 70%-90%. Melalui proses pembakaran raw material lime stone memiliki MgO mancapai 17-22%, sehingga setelah mengalami proses pembakaran lime stone menjadi dolomite yang bisa digunakan banyak hal, antara lain sebagai netralisir kimiawi pada proses produksi baja, atau bahan campuran pembuatan gypsum eternite, bahkan dunia modern ini bahan tersebut menjadi bahan pendukung produk kosmetik. Untuk mencapai tujuan tersebut PT. Sari Bumi Sidayu harus mengetahui berbagai aktifitas apa saja yang meningkatkan nilai tambah (value add) baik produk barang maupun produk jasa, pemborosan (waste) apa saja yang sering terjadi dan bisa memperpendek proses produksi. oleh karena itu perlu adanya pendekatan lean manufactirung. Kondisi perusahaan digambarkan dalam Big Picture Mapping, pemborosan diidentifikasi dengan seven waste, kemudian dilakukan pemetaan secara detail dengan Value Stream Analysis Tools (VALSAT). Berdasarkan pengolahan data didapatkan bobot rangking waste tertinggi oleh waiting dengan nilai 38.09 %, over production dengan nilai 21,77%, defect dengan nilai 17%, Unnecessary inventory  dengan nilai 11,56 %, Excessive transportation  dengan nilai 8,16 %, Unnecessary motion dengan nilai 3,40%. Adapun detail mapping yang dominan adalah Process Activity Mapping dengan nilai 520,3  dan supply chain respon matrix dengan nilai 515,56. Lead time dalam produksi dolomite sebesar  14.400,02 menit, setelah usulan perbaikan di implementasikan di dapatkan reduksi lead time sebesar  1.440 menit. hasil keseluruhan data tersebut, maka Perusahaan bisa menghemat waktu sampai 12.960,02 menit. Tentu angka tersebut dapat menekan cost operational atau biaya overhead perusahaan dan menambah profit atas penghematan waktu yang dilakukan.


Author(s):  
Ahmed Zainul Abideen ◽  
Fazeeda Binti Mohamad

Purpose The purpose of this study is to apply value stream mapping (VSM) in Malaysian pharmaceutical production warehouse. A current and future state value stream map from the raw material receiving end to the production unit was developed to find out waste and unwanted lead time. It was very much essential to cut down the supply chain lead time at the initial phase as the raw material unloading, sorting, temporary storage and dispatch to production were seen contributing to a huge lead time build-up. Design/methodology/approach The study was initiated with the selection of a product family, construction of the current state map, identification of various wastes and the development of future state map. Findings The expected outcomes of the study include the quantification of wastes, improvement in value-added percentage and lead time reduction. Research limitations/implications The study was carried out in a single pharmaceutical company. The results of the study are deployable and can be functional in similar production organizations. Contrary to common VSMs that capture core production processes, this study provides strong insights that shall help design lean supply chains, especially in the pharmaceutical domain. This paper has also addressed the viability of the lean in the pharmaceutical warehouse and the reduction in lead time to improve demand forecasting, marketing and sales. Practical implications The results of this study have indicated that a significant reduction in pharmaceutical warehouse supply chain lead time is possible as a result of the implementation of VSM from the supply chain’s perspective. Social implications The insights from this study help in understanding the pharmaceutical supply chain risks and their outcomes. Originality/value The paper reports a real-time study conducted in a warehouse of a pharmaceutical organization. Hence, the contributions are original.


2013 ◽  
Vol 844 ◽  
pp. 421-424
Author(s):  
Sukonthip Hongpiriyakul ◽  
Nikorn Sirivongpaisal ◽  
Sakesun Suthummanon ◽  
Wanatchapong Kongkaew ◽  
Pallapat Penchamrat

Rubber glove industry in the supply chain has become increasingly important because of the significant change in consumer behaviors, which turn to focus on healthcare and disease protection. Thailand is among the leading exporting countries of rubber glove. Under current situation, with high labor cost and energy cost having an impact on production cost, the need for cost reduction in the industry is extremely of concern. This research demonstrates application of the lean supply chain for cost reduction in the industry. The aim is to lower the total supply chain cost by reducing the lead time. Value stream mapping is employed to analyze non valued activities (wastes) in the supply chain. Propositions for eliminating the wastes are presented.


Author(s):  
Ahmad Shalihin ◽  
Juliza Hidayati ◽  
Khairunnisa

Di dalam dunia persaingan global persaingan antar kompetitor semakin ketat sehingga dalam faktanya bisnis usaha yang dijalankan perlu terus untuk dikembangkan dan dilakukan perbaikan sehingga perusahaan mampu tumbuh dan bersaing. Sebuah perusahaan yang bergerak di bidang sertifikasi halal mempunyai beberapa kriteria usaha yang disertifikasi meliputi industri pengolahan, restaurant dan rumah potong hewan. Fokus utama objek yang diteliti adalah industri pengolahan. Berdasarkan data historis sertifikasi halal selama 2 periode mengalami kenaikan secara terus menerus sehingga proses pelayanan dan penanganan dalam sertifikasi halal menjadi bertumpuk dan menjadikan aliran informasi dan aliran dokumen pada supply chain menjadi panjang dikarenakan sistem baru yang digunakan merupakan sistem sertifikasi secara online yang belum lama di adopsi. Proses sertifikasi halal memakan waktu sehingga kualitas pelayanan pada aliran informasi dan dokumen tidak maksimal dan berbedabeda, aliran informasi dan aliran dokumen yang tidak efisien waktu yang pada akhirnya membuat lead time proses sertifikasi menjadi panjang dan tidak efektif. Analisis menggunakan value stream mapping (VSM). Hasil yang dicapai berupa (1)big picture mapping current state map dan future state map, (2) mengetahui value added dan non value added pada proses aliran supply chain sertifikasi halal, (3) membuat skala prioritas terhadap 7 waste untuk meminimalisir pemborosan diproses sertifikasi, kemudian jenis pemborosan yang paling sering terjadi pada jenis pembororsan waiting (28%) dan proporsi waktu aktifitas value added (VA) sebesar (54%) dengan non value added (NVA) sebesar (46%). Setelah perbaikan didapatkan hasil proporsi waktu aktivitas menjadi sebesar value added (88%) non value added (NVA) berkurang menjadi sebesar (12%) berdasarkan rancangan aktivitas yang telah di operasikan berkurang dari 30 aktivitas menjadi 28 aktivitas dengan perbaikan waktu proses mencapai 37 hari dari 50 hari.   In the world of global competition, competition among competitors is getting tougher, so in fact, businesses that are run need to be continuously developed and improved so that companies are able to grow and compete. A company engaged in halal certification has several business criteria that are certified covering the processing industry, restaurants and abattoirs. The main focus of the object under study is the processing industry. Based on the historical data of halal certification for 2 periods, it has been continuously increasing so that the service and handling process in halal certification has accumulated and makes the flow of information and document flow on the supply chain lengthy because the new system used is an online certification system that has not been recently adopted. . The halal certification process takes time so that the quality of service in the flow of information and documents is not optimal and varies, the information flow and document flow are not time efficient which ultimately makes the lead time of the certification process to be long and ineffective. Analysis using value stream mapping (VSM). The results achieved in the form of (1) big picture mapping of the current state map and future state map, (2) knowing the value added and non value added in the halal certification supply chain flow process, (3) making a priority scale of 7 waste to minimize the waste of certification processing , then the type of waste that most often occurs in the type of waiting (28%) and the proportion of time value added activities (VA) of (54%) with non value added (NVA) of (46%). After the improvement, the result shows that the proportion of activity time is equal to value added (88%). Non-value added (NVA) is reduced to equal to (12%) based on the activity design that has been operated. 50 days. 


Nowadays automobile industry, as manufacturers structure and construct vehicles all-inclusive, their supply chains become progressively perplexing with difficulties in the method of profitability and investor worth value such as excess inventory over the production network and absence of permeability of providers. So as to expand the aggressiveness of the automotive industry with store network, here lean administration idea is incorporated as lean supply chain management (LSCM).The Lean supply chain is utilized to streamline the business forms by wiping out waste and non-value added activities. The association between lean and SCM is one of the techniques for expense and time decrease to improve the viability. The lean supply chain is likewise centered around advancing the procedure of all production network and scanning for rearrangements. This research paper is proposed a lean supply chain managementvalue stream mapping (LSCM-VSM) is utilized to dispense with waste and improved operational methodology and efficiency. It is a procedure of envisioning mapping stream of information and producing the future-state map with better strategies and execution. The exploratory outcomes demonstrate the production lead time (PLT) by executing the proposed LVSM and future more assesses the total cycle time (TCT) and value-added ratio(VA%) of a value stream.


2018 ◽  
Vol 7 (2.29) ◽  
pp. 219
Author(s):  
Zulfa Fitri Ikatrinasari ◽  
Dan Kosasih

PT. AEMI is one of the growing electronic component manufacturing company. By this time, Kaizen project has been run and managed to become a culture in PT AEMI. However, the project has not integrated, comprehensive and not yet has a long-term goals. Implementation of value stream mapping (VSM) in PT AEMI is expected to make Kaizen projects more focused and to produce increasing of the maximum efficiency. In addition, VSM Kaizen is believed to make the those programs more integrated, effective and comprehensive. This study aims to: (1) create a current state mapping in the Department of Quality Control PT. AEMI, (2) identify wastes in the Department of Quality Control PT.AEMI, (3) create a future state mapping at the Department of Quality Control PT. AEMI, (4) make a plan of improvement and analyzing the application. Stages of the study were as follows: (1) identification of work processes, (2) collect and analysis of work process time, (3) analysis of the current state mapping, (4) calculate of lead time and process time, (5) analysis of value added and non value-added activities, (6) analysis of wastes, (7) make a plan of future state mapping, (8) improvement design (improvement planning), (9) implementation of improvement, (10) analysis of the implementation of improvements. The results of this study are: 1) current state mapping at QC Department shows that the total lead time of 848 minutes where there is non-value added activity of 778 minutes. 2) identify waste on the handling process where the product movement from assembly to QC for 2 minutes, movement transactions from assembly to QC for 479 minutes and the waiting time at  inspection area for 727 minutes. 3) future state mapping at QC Department shows that the total lead time of 516.5 minutes where there is non-value added activity of 446.5 minutes. 4) the improvement to do is to change the lay out where final inspection is moved from QC to manufacturing so as to result in reduce of non-value added activity by 46%. 


2020 ◽  
Vol 3 (4) ◽  
pp. 509-521
Author(s):  
Wresni Anggraini ◽  
Anifah Naswan Ilhamda

Standar pelayanan minimal rumah sakit tentang waktu tunggu untuk rawat jalan yang ditetapkan oleh Kemenkes Nomor. 129/Menkes/SK/II/2008 adalah tidak lebih dari 60 menit.  Masalah yang dihadapi oleh Poli Tulip Rumah Sakit X Pekanbaru adalah waktu menunggu pasien lebih dari 60 menit.  Tujuan dari penelitian ini adalah memberikan usulan perbaikan untuk mengurangi waktu tunggu pasien.. Metode yang digunakan pada penelitian ini adalah  lean healthcare menggunakan analisis Value Stream Mapping (VSM) untuk menentukan nilai Process Cycle Efficiency (PCE). Berdasarkan current state value stream mapping nilai PCE saat ini adalah 16,85%, ini berarti efisiensi lini pada Poli Tulip Rumah Sakit X Pekanbaru masih sangat rendah. Proses usulan perbaikan efisiensi lini dengan cara mengidentifikasi dan mengurangi non value added activity dan waste yang paling sering terjadi pada proses pelayanan pasien. Ditemukan waste yang berpengaruh menyebabkan waste delay adalah waste unnecessary movement dan lost oppurtunity to retain or win customers yaitu sebesar 22,11%. Untuk mencari akar penyebab waste dilakukan root cause analysis. Akar penyebab masalah dari waste yang terjadi di lini pelayanan pasien bersumber dari faktor individual pegawai dan manajerial Rumah Sakit. Simulasi future state value stream mapping dengan menggunakan ARENA dilakukan untuk menguji usulan perbaikan, didapatkan  nilai PCE harapan sebesar 36,18 %, yang berarti dengan usulan perbaikan yang diberikan telah meningkatkan efisiensi jalur layanan pasien di Poli Tulip sebesar 19,33%.


Author(s):  
Renu Yadav ◽  
Ashish Shastri ◽  
Mithlesh Rathore

To survive in today’s competitive business world, companies require small lead times, low costs and high customer service levels. As such, companies pay more effort to reduce their manufacturing lead times. Value stream mapping (VSM) technique has been used on a broad scale in big companies such as Toyota and Boeing. This paper considers the implementation of value stream mapping technique in manufacturing helical springs by railway spring manufacturing company. It focuses on product family, current state map improvements and the future state map. The aim is to identify waste in the form of non value added activities & processes and then removing them to improve the performance of the company. Current state map is prepared to describe the existing position and various problem areas.. Future state map is prepared to show the proposed improvement action plans. The achievements of value stream implementation are reduction in lead time, cycle time and inventory level. It was found that even a small company can make significant improvements by adopting VSM technology. It was concluded that if we adopt the VSM technique the company could reduce the manufacturing lead time from 36.86 days to 34.06 days.


2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ahmed Abideen ◽  
Fazeeda Binti Mohamad

Purpose Lean implementation is vastly incorporated in core manufacturing processes; however, its applicability in the supply chain and service industry is still in its infancy. To acquire performance excellence and thrive in the global competitive market, many firms are adopting newer methodologies. But, there is a stringent need for production simulation systems to analyze supply chains both inbound and outbound. The era of face validation is slowly disappearing. Lean tools and procedures that provide future state assumptions need advanced tools and techniques to measure, quantify, analyze and validate them. The purpose of this study is to enable dynamic quantification and visualization of the future state of a warehouse supply chain value stream map using discrete event simulation (DES) technique. Design/methodology/approach This study aimed to apply an integrated approach of the value stream mapping (VSM) and DES in a Malaysian pharmaceutical production warehouse. The main focus is diverted towards reducing the warehouse supply chain lead time by initially constructing a supply chain value stream map (both present state and future state) and integrating its data in a DES modelling and simulation software to dynamically visualize the changes in future state value stream map. Findings The DES simulation was able to mimic the future state lead time reductions successfully, which assists in better decision-making. Improvements were seen related to total lead time, process time, value and non-value-added percentage. Warehouse performance metrics such as receiving, put away and storage rates were substantially improved along with pallet processing time, worker and forklift throughput usage percentage. Detailed findings are clearly stated at the end of this paper. Research limitations/implications This study is limited to the warehouse environment and further additional process models and functional upgrades in the DES software systems are very much needed to directly visualize and quantify all the possible Lean assumptions such as radio frequency image identification/Andon (Jidoka), 5S, Kanban, Just-In-Time and Heijunka. However, DES has a leading edge in extracting dynamic characteristics out of a static VSM timeline and capture details on discrete events precisely by picturizing facility modification and lead time related to it. Practical implications This paper includes all the fundamental pharmaceutical warehouse supply chain processes and the simulations of the future state VSM in a real-life context by successfully reducing supply chain lead time and allowing managers in inculcating near-optimal decision-making, controlling and coordinating warehouse supply chain activities as a whole. Social implications This integrated approach of DES and VSM can involve managers and top management to support the adoption of anticipated changes. This study also has the potential to engage practitioners, researchers and decision-makers in the warehouse industry. Originality/value This study involves a powerful DES software package that can mimic the real situation as a virtual simulation and all the data and model building are based on a real warehouse scenario in the pharmaceutical industry.


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