Williams Optical Inc is considering a new lean product cell

Last updated: 8/5/2023

Williams Optical Inc is considering a new lean product cell The present manufacturing approach produces a product in four separate steps The production batch sizes are 45 units The process time for each step is as follows Process Step 1 Process Step 2 Process Step 3 Process Step 4 5 minutes 8 minutes 4 minutes 3 minutes The time required to move each batch between steps is 5 minutes In addition the time to move raw materials to Process Step 1 is also 5 minutes and the time to move completed units from Process Step 4 to finished goods inventory is 5 minutes The new lean layout will allow the company to reduce the batch sizes from 45 units to 3 units The time required to move each batch between steps and the inventory locations will be reduced to 2 minutes The processing time in each step will stay the same Determine the value added non value added and total lead times and the value added ratio under the present and proposed production approaches If required round percentages to one decimal place Present Approach Proposed Approach 20 min Value added time Non value added time Total lead time 20 min min min min min