Implementation of lean thinking through A3 report in plastic injection company

Sartika Rini


Lean thinking, or lean production, which has long been introduced by Toyota, is a process improvement concept that is carried out by eliminating waste and focusing more on things that create values. Its emergence was inspired by the fact on the production floor, where only a small fraction of the total times and efforts contributed to creating added value to customers’ final product. Lots of prior studies have shown various benefits of implementing lean production, especially in manufacturing industries. However, many companies still find difficulties trying to implement a lean approach for the first time. Furthermore, they do not have a clear and concise picture of each component of the lean approach they want to apply. This company is based on case study which has many rejected products so that it makes higher production cost. Therefore, this study proposed an implementation of lean thinking to reduce the number of rejected products through A3 report. This result show the defects can be reduced and the standard operational procedure has been developed. 


Lean thinking; A3 report; Manufacturing industry.

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EEF Productivity Survey. (2001). Catching up with Uncle Sam: The EEF final report on US and UK manufacturing productivity

Flinchbaugh, J. (2012). A3 problem solving: Applying lean thinking. Lean Learning Center.

Herzog, N. V., & Tonchia, S. (2014). An instrument for measuring the degree of lean implementation in manufacturing. Strojniški vestnik-Journal of Mechanical Engineering, 60(12), 797-803.

Howell, G. A. (1999). What is lean construction-1999. In Proceedings IGLC, 7, 1.

Holweg, M. (2007). The genealogy of lean production. Journal of operations management, 25(2), 420-437.

IW/MPI Census of Manufacturers (2007) Measuring continues improvement programs

Lila, B. (2012). A survey on implementation of the lean manufacturing in automotive manufacturers in the eastern region of Thailand. In Proceedings of the 2nd International Conference on Industrial Technology and Management (ICITM), 43-48.

Melton, T. (2005). The benefits of lean manufacturing: what lean thinking has to offer the process industries. Chemical engineering research and design, 83(6), 662-673.

NIST, 2003. Utah Manufacturing Extension Partnership, Manufacturing Extension Partnership, National Institute of Standards and Technology, Gaithersburg, MD.

Nordin, N., Deros, B. M., & Abd Wahab, D. (2010). A survey on lean manufacturing implementation in Malaysian automotive industry. International Journal of Innovation, Management and Technology, 1(4), 374.

Saad, N. M., Al-Ashaab, A., Shehab, E., & Maksimovic, M. (2013). A3 thinking approach to support problem solving in lean product and process development. In Concurrent Engineering Approaches for Sustainable Product Development in a Multi-Disciplinary Environment, 871-882. Springer, London.

Thangarajoo, Y., & Smith, A. (2015). Lean thinking: An overview. Industrial Engineering & Management,[e-journal], 4(2), 1000159.

Waurzyniak, P. (2003). Going lean at Baxter. Manufacturing Engineering, 130(5), 89-89.

Womack, J.P., & Jones, D.T. (1996). Lean Thinking: Banish Waste and Create Wealth in Your Corporation, Simon & Schuster, New York.



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