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    Takt Time: A Guide to the Very Basic Lean Calculation
    Takt Time: A Guide to the Very Basic Lean Calculation
    Takt Time: A Guide to the Very Basic Lean Calculation
    Ebook70 pages39 minutes

    Takt Time: A Guide to the Very Basic Lean Calculation

    By Mohammed Hamed Ahmed Soliman

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    Takt time is calculated as the amount of manufacturing time that is available divided by the volume of orders. In the 1930s, the German aviation industry employed Takt for the first time as a production management tool. The idea was widely used within Toyota in the 1950s, and by the late 1960s, it had been adopted by the majority of the Toyota supplier base. Every month, Toyota assesses the takt for a process, with a modifying review occurring every 10 days. Takt time is used to properly balance supply and demand. It gives a lean production system its beating heart.

    LanguageEnglish
    Publisherpersonal-lean.org
    Release dateOct 16, 2020
    ISBN9798223865247
    Takt Time: A Guide to the Very Basic Lean Calculation
    Author

    Mohammed Hamed Ahmed Soliman

    Mohammed Hamed Ahmed Soliman is an industrial engineer, consultant, university lecturer, operational excellence leader, and author. He works as a lecturer at the American University in Cairo and as a consultant for several international industrial organizations. Soliman earned a Bachelor's of science in Engineering and a Master's degree in Quality Management. He earned post-graduate degrees in Industrial Engineering and Engineering Management. He holds numerous certificates in management, industry, quality, and cost engineering. For most of his career, Soliman worked as a regular employee for various industrial sectors. This included crystal-glass making, fertilizers, and chemicals. He did this while educating people about the culture of continuous improvement. Soliman has more than 15 years of experience and proven track record of achieving high levels of operational excellence to a broad range of business operations including manufacturing, service and healthcare. He has led several improvement projects within leading organizations and defined a lot of savings in the manufacturing wastes stream. Soliman has lectured at Princess Noura University and trained the maintenance team in Vale Oman Pelletizing Company. He has been lecturing at The American University in Cairo for 8 years and has designed and delivered 40 leadership and technical skills enhancement training modules. In the past 4 years, Soliman's lectures have been popular and attracted a large audience of over 200,000 people according to SlideShare's analysis.. His research is one of the most downloaded works on the Social Science Research Network, which is run by ELSEVIER. His research is one of the most downloaded works on the Social Science Research Network, which is run by ELSEVIER. Soliman is a senior member at the Institute of Industrial and Systems Engineers and a member with the Society for Engineering and Management Systems. He has published more than 60 publications including articles in peer reviewed academic journals and international magazines. His writings on lean manufacturing, leadership, productivity, and business appear in Industrial Engineers, Lean Thinking, Industrial Management, and Sage Publications. Soliman's blog is www.personal-lean.org.

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      Book preview

      Takt Time - Mohammed Hamed Ahmed Soliman

      Acknowledgments

      Icreated this book with the help of more than fifteen different business resources. These academic articles and books are all cited at the end of this book. A number of people have influenced my learning journey and my entire career. I would like to acknowledge them here.

      Esraa Soliman: My lovely wife and partner. She encouraged me to write and publish this work. In fact, she always encourages me to do creative work.

      Jeffrey Liker: Professor at the University of Michigan and author of The Toyota Way and the amazing Toyota series of books. His impressive work on Toyota inspired and influenced my learning about the Toyota Production System. I would really like to thank him for his indirect involvement in this work. Many examples included in this book were originally from his books. Although I have never met Jeff face to face, we have had great communications over social media platforms.

      Chris Duklet: A lean manufacturing leader from the United States who works in the field of health care. He has contributed to this work by reviewing the book prior to publication and giving me useful recommendations and advice.

      Attia Gomaa: Professor at the American University in Cairo who influenced my teaching career at the university and taught me how to become a good trainer.

      Steven Borris: A business consultant, author, and friend from England who influenced my writing career. He encouraged me to write and publish. Steven was my mentor on lean manufacturing, helping me first to understand the basics, after which I developed my understanding through deep practice and self-directed learning.

      Eslam Soliman: My friend and a professor at the Assiut University. His PhD is from the University of New Mexico. He has influenced my entire writing career by giving me recommendations and advice on how to write and publish. He revised my published works many times and kept inspiring me after every piece I wrote and published.

      Takt Time

      What is takt? Takt is a German word for pace or beat. Takt time is a reference number that is used to help match the rate of Production in a pacemaker process to the rate of Sales.

      One of lean manufacturing’s most important calculations is takt time, or the rate of customer demand for a group or family of products produced by one process. Takt time is calculated by dividing the effective operating time of a process (be it a shift, a day, etc.) by the quantity of items that the customer requires from the process in that time period. For example, the operating time for a process is 28,800 seconds per shift. But the effective operating time is the operating time minus allowances, which can include planned downtime, lunches, breaks, team meetings, cleanup and planned maintenance. Assuming 1 hour for allowances, unplanned downtimes, changeovers (signify waiting waste) and other internal problems are those variables that need to be improved to have the best effective operating time. If the customer demands 420 pieces of a product during an eight-hour shift, the takt time will be 25,200 divided by 420, or 60 seconds. This means that based on the available time, on average, the customer is buying one unit every 60 seconds.

      Obviously, the intended cycle time of an assembly process, called planned cycle time, is usually less than the takt time. So, in less than one hour, we

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