scholarly journals Implementation of lean manufacturing to reduce waste in production line with value stream mapping approach and Kaizen in division sanding upright piano, case study in: PT. X

2018 ◽  
Vol 154 ◽  
pp. 01095 ◽  
Author(s):  
W. A. Santosa ◽  
M. Sugarindra
Keyword(s):  
Cycle Time ◽  
Lean Manufacturing ◽  
Lead Time ◽  
Value Stream Mapping ◽  
Production Lines ◽  
Production Scale ◽  
Value Stream ◽  
Work In Process ◽  
Quality Product

PT. XY produces musical instruments such as Upright Pianos and Grand Pianos. Due to a competitive competition, a good quality product is highly required as well as increasing the production scale. To achieve these objectives, company needs to reduce wastes occurred in its production lines, particularly in the division of sanding panel upright piano (UP) which produces type of PE B1 pianos. High cycle time and lead-time are caused by wastes in UP panel sanding division. Therefore, it is needed improvements to be applied here so that the production lines will be run more effectively and efficiently. This study aims to identify wastes using Value Stream Mapping (VSM) as a tool of lean manufacturing and to implement the improvements using Kaizen. It is found that the wastes are motion and waiting. Furthermore, the improvements (kaizen) are focused on reducing motion and waiting wastes. It is shown that cycle time decreased from 51.16 minutes to 41.90 minutes, work in process or inventory can be reduced to 24 pcs over 32 pcs, and the lead-time is 0.167 days of 0.222 days.

scholarly journals MEMINIMASI PEMBOROSAN DENGAN LEAN MANUFACTURING PADA PROSES PRODUKSI DI PT. IE

2021 ◽  
pp. 1451
Author(s):  
Ahmad Ahmad ◽  
Helena JK ◽  
Andrean Yonathan
Keyword(s):  
Waiting Time ◽  
Cycle Time ◽  
Lean Manufacturing ◽  
Lead Time ◽  
Fault Tree Analysis ◽  
Value Stream Mapping ◽  
Tree Analysis ◽  
Value Stream ◽  
Current State ◽  
Future State

PT. IE is engaged in the business of making Lighting and Lampposts. Based on observations and interviews, there are still some wastes that arise in the flow of the production process, among which there are still many wastes of waiting time, transportation, movement and inventory. These wastes cause the product completion time to be longer and the resulting quality decreases. To eliminate or reduce waste, it is necessary to apply Lean Manufacturing. Lean Manufacturing is a systematic approach to eliminating waste and changing processes by identifying and reducing waste with continuous improvement and striving to create a production flow along the value stream by eliminating all forms of waste and increasing the added value of products to customers. From the Pareto diagram, it is found that transportation waste has the highest percentage of 26.21%, waiting time is 21.38%, motion waste is 19.31% and waste inventories are 15.17%. while the results of the Value Stream Mapping Current State Map mapping obtained a production lead time of 7,680 seconds and a total cycle time of 6,660 seconds and a PCE Current State Map value of 53.09%. Identify the root causes of waste using Fishbone diagrams, 5 Why Analysis, 5W+1H, Fault Tree Analysis and FMEA. After corrective actions have been taken, based on the Value Stream Mapping Future mapping there is a decrease in production lead time to 5,220 seconds and a decrease in total cycle time to 4,860 seconds and an increase in PCE Future State Map to 68.10% so that there is an increase of 15.01% which shows The company's production process has become more Lean.PT. IE bergerak dalam bisnis pembuatan Lighting dan Tiang Lampu. Berdasarkan observasi dan wawancara, masih terdapat beberapa pemborosan (waste) yang timbul di aliran proses produksi di antaranya masih banyak terjadi pemborosan-pemborosan waktu tunggu, transportasi, gerakan dan inventori. Pemborosan-pemborosan tersebut menyebabkan waktu penyelesaian produk menjadi lebih lama dan kualitas yang dihasilkan menurun. Untuk menghilangkan atau mengurangi pemborosan diperlukan adanya penerapan Lean Manufacturing.Lean Manufacturing merupakan pendekatan sistematik untuk mengeliminasi pemborosan dan mengubah proses dengan cara mengidentifikasi dan mengurangi pemborosan dengan perbaikan kontinu dan berupaya untuk menciptakan aliran produksi sepanjang value stream dengan menghilangkan segala bentuk pemborosan serta meningkatkan nilai tambah produk kepada pelanggan. Dari diagram Pareto ditemukan waste transportasi memiliki persentase paling tinggi sebesar 26,21%, waktu tunggu  21,38%, waste motion 19,31% dan waste inventories 15,17%. sedangkan hasil pemetaan Value Stream Mapping Current State Map diperoleh production lead time selama 7.680 detik dan total cycle time selama 6.660 detik serta nilai PCE Current State Map sebesar 53,09%. Identifikasi akar permasalahan pemborosan menggunakan diagram Fishbone, 5 Why Analysis, 5W+1H, Fault Tree Analysis dan FMEA. Setelah dilakukan tindakan–tindakan perbaikan, berdasarkan pemetaan Value Stream Mapping Future ada penurunan production lead time menjadi 5.220 detik dan penurunan total cycle time menjadi 4.860 detik serta ada peningkatan PCE Future State Map menjadi 68,10% sehingga ada peningkatan 15,01% yang menunjukan proses produksi perusahaan telah menjadi lebih Lean.

scholarly journals Penerapan Lean Manufacturing Untuk Mengidentifikasi Dan Menurunkan Waste (Studi Kasus CV Tanara Textile)

2019 ◽  
Vol 5 (1) ◽  
pp. 1-7
Author(s):  
Catur Kusbiantoro ◽  
Ellysa Nursanti
Keyword(s):  
Lean Manufacturing ◽  
Lead Time ◽  
Value Added ◽  
Value Stream Mapping ◽  
Value Stream ◽  
Work In Process ◽  
Cycle Efficiency

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%

Application of Lean Tool (Value Stream Mapping) in Minimisation of the Non-Value Added Waste (A Case Study of Tractor Industry)

2011 ◽  
Vol 110-116 ◽  
pp. 2062-2066 ◽  
Author(s):  
Paramdeep Singh ◽  
Harpuneet Singh
Keyword(s):  
Lean Manufacturing ◽  
Lead Time ◽  
Manufacturing System ◽  
Research Work ◽  
Value Added ◽  
Value Stream Mapping ◽  
Value Stream ◽  
Work In Process ◽  
Before And After ◽  
Traditional Manufacturing

Lean manufacturing has been proved to be an effective management philosophy for improving businesses in a competitive market by eliminating non-value added waste and improving in process operations. Value stream mapping is an important tool used to identify the opportunities for various lean techniques. The present research mainly focuses on the description of a model that is developed to contrast the “before” and “after” scenarios in detail in order to obtain the various benefits such as reduced production lead time, lower work in process inventory [1] and proper utilisation of the workforce. The current manufacturing system has been compared with the proposed pull (Kanban) system which shows the benefits of the proposed lean manufacturing system over the existing traditional manufacturing system. The present research work has been carried out at typical tractor industry which shows 50.5% reduction in total lead time in the future state value mapping of the crank case and the number of operators involved in processing of crank case has also been reduced from 22 to 18.

Lean manufacturing implementation using value stream mapping as a tool

2014 ◽  
Vol 5 (1) ◽  
pp. 89-116 ◽  
Author(s):  
Naga Vamsi Krishna Jasti ◽  
Aditya Sharma
Keyword(s):  
Lean Manufacturing ◽  
Value Stream Mapping ◽  
Process Time ◽  
Inventory Level ◽  
Specific Product ◽  
Content Type ◽  
Value Stream ◽  
Work In Process ◽  
Current State

Purpose – Value stream mapping (VSM) is a lean manufacturing (LM) tool used for analyzing material and information flow on a specific product family. The purpose of this article is to address the importance of VSM in LM environment in an Indian auto components industry. Design/methodology/approach – The case study approach has been used to show the applicability and importance of VSM in an Indian auto components company, in which the current state of manufacturing is mapped with the help of VSM symbols. According to the current state mapping, the study conducted analysis and identifies the area of improvement needed in terms of work in process, lead time and cycle time. The study further implemented kaizen on the current state map and developed future state map while including these kaizens. Findings – The study clearly shows that the VSM brings out the positive impact on process ratio, TAKT time, process inventory level, line speed, total lead and process time and reduced man power. It is helping the company in satisfying their customers with respect to quality, cost and delivery. Research limitations/implications – The main limitation of the study is the confined focus on a single industry. The case should be extended to other industries in order to support the findings and for the purpose of the wider generalization. Practical implications – The results obtained from the study will help other industries and sectors to implement VSM in LM environment. Originality/value – The article deals with a real case study, which shows application of VSM for implementing lean principles.

scholarly journals Case Study: Maintenance Proposal of Press Parts Production for Minimize Waste by Lean Manufacturing – Value Stream Mapping (VSM)

INSIST ◽  
2017 ◽  
Vol 2 (1) ◽  
pp. 6
Author(s):  
Dessy Agustina Sari ◽  
Sukanta Sukanta
Keyword(s):  
Lean Manufacturing ◽  
Lead Time ◽  
Value Added ◽  
Value Stream Mapping ◽  
Problem Solution ◽  
Value Stream ◽  
A Value ◽  
Material Transportation ◽  
Schedule Activity

Abstract—Higher competition in businesslike field demanded each company acted as a value creator with progressive fixing performance. One of effort in increasing productivity was reducing waste. Enterprise T have seven type of extravagance were over production, transportation, inventory, over processing, motion waiting and defect. Minimize waste have bond with production time which could increase efficiency on using electricity and decreased lead time. Production process in this company showed non-value added time such as excessively material transportation in picking area and so the workers too much waited for the next schedule activity. This condition caused higher product lead time. Lean manufacturing idea necessary was implemented with using tool Value Stream Mapping – VSM. This strategy would resumed for the company maintenance and the result showed that lacking as much 26,45% of lead time could be a problem solution. Reducing lead time could be higher if the company have applied and played continue improvement.Keywords—lead time, lean manufacturing, value stream mapping.

scholarly journals Case Study: Maintenance Proposal of Press Parts Production for Minimize Waste by Lean Manufacturing – Value Stream Mapping (VSM)

INSIST ◽  
2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Dessy Agustina Sari ◽  
Sukanta Sukanta
Keyword(s):  
Lean Manufacturing ◽  
Lead Time ◽  
Value Added ◽  
Value Stream Mapping ◽  
Problem Solution ◽  
Value Stream ◽  
A Value ◽  
Material Transportation ◽  
Schedule Activity

Abstract—Higher competition in businesslike field demanded each company acted as a value creator with progressive fixing performance. One of effort in increasing productivity was reducing waste. Enterprise T have seven type of extravagance were over production, transportation, inventory, over processing, motion waiting and defect. Minimize waste have bond with production time which could increase efficiency on using electricity and decreased lead time. Production process in this company showed non-value added time such as excessively material transportation in picking area and so the workers too much waited for the next schedule activity. This condition caused higher product lead time. Lean manufacturing idea necessary was implemented with using tool Value Stream Mapping – VSM. This strategy would resumed for the company maintenance and the result showed that lacking as much 26,45% of lead time could be a problem solution. Reducing lead time could be higher if the company have applied and played continue improvement.Keywords—lead time, lean manufacturing, value stream mapping.

Lean Solutions in Batch Manufacturing Process with Applicability in Bumpers Production

2016 ◽  
Vol 834 ◽  
pp. 205-210
Author(s):  
Elena Loredana Terzea ◽  
Antonia Cristina Barascu ◽  
Iulian Razvan Soare
Keyword(s):  
Automotive Industry ◽  
Food Processing ◽  
Lead Time ◽  
Batch Processes ◽  
Value Stream Mapping ◽  
Value Stream ◽  
Industry Sector ◽  
Current Value ◽  
Lean Methods

Batch processes includes paint manufacturing, food processing, pharmaceutical industry, etc. The paper focuses on the process of paint manufacturing. The main contribution is the design of the current value stream mapping, very useful to understand the causes of waste and lead-time. This paper points out the necessity of applying lean methods within automotive industry, sector of bumpers painting and assembly, based on a real case-study.

scholarly journals Variability and Uncertainty Analysis in Value Stream Mapping

2019 ◽  
Vol 8 (12S2) ◽  
pp. 533-538
Keyword(s):  
Lean Manufacturing ◽  
Value Stream Mapping ◽  
Strong Impact ◽  
Food Sector ◽  
Value Stream ◽  
Current State ◽  
Potential Risks ◽  
Tools And Techniques ◽  
A Current

Lately, value stream mapping (VSM) is integrated with tools and techniques that belong to other areas of knowledge such as risk management (RM). It is well known tool in showing the value, value stream and the flow which represents three of lean manufacturing (LM) principles. This integration, gives more benefit in covering two of VSM issues such as considering the variability and uncertainty of production processes. In this paper, a model named variable value stream mapping (V-VSM) that integrates the two was showed, explained and tested. The model helps to generate the VSM in a dynamic way with the identification of current and potential risks. These risks might happen in the future bringing a strong impact on not reaching the main objectives in the defined time and cost. The model has been tested by conducting a case study in food sector. A current state map was built using both models, traditional VSM and VVSM. The results showed the effect of variability and uncertainty on the total cycle time (CT) and lead time (LT) values, where the traditional VSM failed to show it by being a static tool. Comparing the results of both models show the differences in presenting the real state of manufacturing environment..

scholarly journals ANALISIS PEMBOROSAN PRODUKSI PADA ALIRAN PRODUK JALA IKAN KKP MENGGUNAKAN PRINSIP LEAN MANUFACTURING DENGAN METODE VALUE STREAM MAPPING (VSM) DI PT. INDONEPTUNE NET MANUFACTURING

2019 ◽  
Vol 7 (2) ◽  
pp. 79-89
Author(s):  
Henny Henny ◽  
Muhammad Kahfi Hadi Syuhada
Keyword(s):  
Cycle Time ◽  
Delay Time ◽  
Lean Manufacturing ◽  
Value Stream Mapping ◽  
Time Level ◽  
Value Stream ◽  
Current State

  Penelitian ini ditujukan untuk menganalisis pemborosan produksi produk Jala Ikan KKP menggunakan lean manufacturing di PT. Indoneptune Net Manufacturing dengan memetakan aliran produksi dan menganalisisnya menggunakan value stream mapping (VSM). Analisis terhadap pemborosan dengan metode VSM dilakukan karena VSM dapat memetakan aliran informasi dan material dari awal sampai akhir dari value stream pembuatan suatu produk. Sehingga dapat dilihat proses mana saja yang merupakan pemborosan. Adapun VSM yang dibuat adalah current-state VSM karena dapat merepresentasikan kondisi saat ini dari aliran produksi yang ada. Hasil yang didapatkan setelah dibuat current-state VSM adalah aliran produksi produk jala Ikan KKP melewati proses spinning, ring roupe, netting dan finishing yang memiliki sub-sub proses yang berbeda. Dari setiap sub-proses tersebut dipetakan nama proses, jumlah waktu cycle time dan changeover time, level inventory, waktu kerja tersedia dan jumlah operator. Penganalisisan pemborosan dilakukan pada setiap sub-proses untuk dapat mengetahui nilai tambah proses tersebut terhadap produk utama yang sedang dikerjakan pada setiap tahapan proses yang berlangsung. Kesimpulan yang didapat yaitu pemborosan yang terjadi di departemen spinning salah satunya adalah delay time karena persiapan sebelum proses peleburan, waktu tunggu karena persiapan proses twist di departemen ring roupe, transportasi berlebih sebelum proses tatekan dan pengerjaan ulang di hoshu 2 di departemen finishing.

Efficiency Enhancement in a Medium Scale Gearbox Manufacturing Company through Different Lean Tools - A Case Study

2018 ◽  
Vol 34 ◽  
pp. 128-138 ◽  
Author(s):  
V. Saravanan ◽  
S. Nallusamy ◽  
Abraham George
Keyword(s):  
Lean Manufacturing ◽  
Processing Time ◽  
Assembly Line ◽  
Value Added ◽  
Value Stream Mapping ◽  
Productivity Improvement ◽  
Medium Scale ◽  
Value Stream ◽  
Manufacturing Company

Productivity is an important parameter for all small and medium scale manufacturing industries. Lean manufacturing emerged as production strategy capable of increasing productivity by identifying and eliminating non value added activities. This article deals with productivity improvement in a pre-assembly line of gearbox manufacturing company with a case study using lean concepts like process flow chart, process Gantt chart and time study. This paper illustrates using a case study on how a value stream mapping has to be carried out in a planet carrier pre-assembly line. Value stream mapping and work standardization are the key tools used in lean manufacturing and lean transformation. It makes the process smoother, helps in reduction of lead time and ultimately increasing the productivity. From the observed results it was found that, the productivity has been increased from 7 pieces to 10 pieces in the first step assembly when the proposed VSM was implemented. The second step processing time was reduced by the execution of proposed value stream mapping with TAKT time of 126 minutes and 165 minutes of processing time for demand of 10 pieces were achieved and the overall processing time has been reduced by about 24%.

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