The ABC Corporation manufactures two models of small tractors on a single assembly line. Currently, the long range production plan calls for production of 1200 units of model X per month, and 600 units of model Y per month, for the next year. The assembly line can be set up to make only one type of tractors at any given time. To change the assembly line over from one model to the other takes 5 hours, i.e., 300 minutes. When the assembly line is running (for either model X or model Y), a finished tractor rolls off the assembly line every 10 minutes.The assembly line operate on a two shift schedule (=16 hours per day), 5 days per week. Assume 1 month=4 weeks.
Calculate the minimum batch sizes for both models to achieve the long range production plan.
ABC Corporation is initiating a quick program to reduce inventory in their manufacturing facility. In particular, the management sets a goal of cycling through both models in each single day and does not want to use any overtime. Calculate the number of minutes that a single changeover needs to be reduced to make this feasible and still achieve the long range production plan.