S7.11 The three-station work cell illustrated in Figure S7.7, has a product that
ID: 2688108 • Letter: S
Question
S7.11 The three-station work cell illustrated in Figure S7.7, has a product that must go through one of the two machines at station 1 (they are parallel) before proceeding to station 2. Station 1 Machine A Capacity: 20 units/hr Station 2 Station 3 Capacity: 5 units/hr Capacity: 12 units/hr Station 1 Machine B Capacity: 20 units/hr a) What is the process time of the system? b) What is the bottleneck time of this work cell? c) What is the process cycle time? d) If the firm operates 10 hours per day, 5 days per week, what is the weekly capacity of this work cell?Explanation / Answer
Machine A Machine B Machine C
20 units/hr 12 units/hr 5 units/hr 3 min/unit 5 min/unit 12 min/unit
a) What is the process time of the system?
(3min +5min+12min)= 20min or 1/3 hr
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b) What is the bottleneck time of this work cell?
5unit/hr machine
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c) What is the process cycle time?
12min (The time of the longest task)
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d) If the firm operates 10 hours per day, 5 days per week what is the weekly capacity of this work cell?
That is 50 hrs/week which is 3000 min/week...
the longest task is 12min...
=3000/12=250. So, 250 units
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