ToyCorp uses assembly lines to manufacture toys. The time to perform each task and the tasks that must immediately precede each task are:
Task Precedence Duration (seconds)
A --- 9
B --- 39
C A, B 12
D B 6
E C, D 12
F D 36
G F 40
Demand per day is 560 units. The company works one 8-hour shift each day. A shift includes 2 snack breaks of 20 minutes (each). In addition, every hour there is a 6-minute rest break (i.e. 48 minutes per 8-hour shift).
a) Compute cycle time.
b) If cycle time is 40 seconds, what is the production rate per day?
c) For a cycle time of 45 seconds, balance the line using the Longest Operation Time first rule.