Toshiba Ome Works Informations : Production time per day= 7. 5 hours = 27. 000 seconds Output per day= Production time per dayTime needed to make 1 laptop = 27. 000120 = 225 units Total time needed from Ws #1 to Ws #8= 843 seconds Total time needed from Ws #1 to Ws #10= 1258 seconds (sum of task times) Total time needed in Ws #2= 114 seconds (consider as longest time needed before the Ws #9) Total time needed in Ws #9 = 310 seconds Total time needed in Ws #10= 105 seconds Assembly Line Balancing Formulas: Takt time (T) = Production time per dayOutput per day (in units) = 27. 00225 = 120 seconds (Time needed to make 1 laptop) Number of Workstations = Sum of task times (S)Takt time (T) = 1258120 = 10 workstations Efficiency = Sum of task times (S)Actual number of workstations Nax Takt time (T) = 1258(10×120) = 12581200 = 104. 8% Case : 1. Show that the total productions unit can reach 225 units in 7. 5 work hours if the time needed to make 1 laptop is 2 minutes, with informations given in case! 2. Show that Toshiba can produce 300 laptops in a day! Answers : 1. Max output = Production time per day-(Total time #1 to #8+Total time in #9)114 + 1 = 27. 000-(843+310)114 + 1 = 27. 000-1153114 + 1 25. 847114 + 1 = 227 units It shows that from the information given, the Toshiba could produce 227 units per day 2. For the first method we use the “overtime” solutions : Max output = Production time per day-(Total time #1 to #8+Total time in #9)114 + 1 300 – 1 = Production time per day-(843+310)114 299= Production time per day-1153114 299 x 114= Production time per day -1153 34. 086 + 1153= Production time per day 35. 239= Production time per day We need to add additional 2. 5 hours to the original total of production time per day (7. 5 hours), so the Production hour per day become 10 hours And we get as follows :

Takt time (T) = Production time per dayOutput per day (in units) = 35. 239300 = 117 seconds Efficiency = Sum of task times (S)Actual number of workstations Nax Takt time (T) = 1258(10×117) = 12581170 = 107. 5% For the second method we use the “adding workstations” solutions : Takt time (T) = Production time per dayOutput per day (in units) = 27. 000300 = 90 seconds Number of Workstations = Sum of task times (S)Takt time (T) = 125890 = 14 workstations Efficiency = Sum of task times (S)Actual number of workstations Nax Takt time (T) = 1258(14×90) = 1258126 = 99. 8%