a.) What is the throughput rate (per hour) of the ePod production process? b.) W
ID: 378175 • Letter: A
Question
a.) What is the throughput rate (per hour) of the ePod production process?
b.) What is the utilization of Resource C?
c.) What is the maximum number of units waiting to be assembled in WIP1 daily?
d.) What is the average waiting time in WIP1?
Below is a process-flow chart for the production process of Excellent Manufacturing, Inc. Currently, the process is being used to make ePod, a multimedia player. Cycle time at each station of the process is provided on the diagram. The process starts operating at 8am each day and needs to make 120 ePods each day. A unit raw material in "RM" is released to "resource A" every 5 minutes until all of the 120 units are finished. Each station in the process remains working until all the work is finished for the day. FG Machining Packing Assembling Resource B 7.5 min/unit Resource A Resource C 5 min/unit 6 min/unit RM = raw materials; FGe finished goods; 1-Work-in-process inventory 1 (WIPI); 2 Work-in-process inventory 2 (WP2)Explanation / Answer
a) Maximum operation time is 7.5 min/unit of Assembling. It is the bottleneck operation, hence process cycle time = 7.5 min/unit
Throughput rate per hour = (1/7.5)*60 = 8 units per hour
b) Utilization of resource C = operation time of C / process cycle time = 6/7.5 = 0.80
c) Maximum WIP1 = 120*(1-5/7.5) = 40 units
d) Average waiting time in WIP1 = 40*7.5/2 = 150 minutes
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