PA 3-8 Consider a four-step serial process.. Consider a four-step serial process

Question

PA 3-8 Consider a four-step serial process.. Consider a four-step serial process with processing times given in the list below. There is one machine at each step of the process, and this is a machine-paced process Step 1: 22 minutes per unit Step 2: 23 minutes per unit Step 3: 31 minutes per unit Step 4: 18 minutes per unit Assuming that the process starts out empty, how long will it take (in hours) to complete a batch of 101 units? (Do not round intermediate calculations Round your answer to nearest hour) 158 hours

Explanation / Answer

Maximum cycle time of the machines will define the production capacity of the production line.

Now, first unit will move out of the production line after 22+23+31+18 = 94 mins

Highest cycle time is 31 mins. Hence the remaining 100 units will come out of the production line after every 31 mins.

Hence total time taken is 31*100+94= 3194 mins= 3194/60 hours= 53.23 hours

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