Process Cycle Efficiency Improvement Through Lean : A Case Study

A R T I C L E I N F O Lean Manufacturing, Value stream mapping, Cycle time, Takt time, Cycle efficiency. Received 23 February 2011 Received in revised form 11 March 2011 Accepted 13 March 2011 Available online 23 March 2011 Lean manufacturing is an applied methodology of scientific, objective techniques that cause work tasks in a process to be performed with a minimum of non-value adding activities resulting in greatly reduced wait time, queue time, move time, administrative time, and other delays. This work addresses the implementation of lean principles in a construction equipment company. The prime objective is to evolve and test several strategies to eliminate waste on the shop floor. This paper describes an application of value stream mapping (VSM). Consequently, the present and future states of value stream maps are constructed to improve the production process by identifying waste and its sources. A noticeable reduction in cycle time and increase in cycle efficiency is confirmed. The production flow was optimized thus minimizing several non-value added activities/times such as bottlenecking time, waiting time, material handling time, etc. This case study can be useful in developing a more generic approach to design lean environment. ________________________________ * Corresponding Author