C&A Furniture uses a four-step process to make its famous wood table: Process Pr

Question

C&A Furniture uses a four-step process to make its famous wood table:

Process

Processing Time (minutes)

Milling—table top

10

Milling—table stand

5

Assembly

15

Finishing

20

The milling machine requires a setup time of 30 minutes to make table tops and a changeover time of 30 minutes to make table stands.C&A works an 8-hour day.What is the capacity of the milling machine (in tables per day) if the batch size is 10?

O0.05

O6.40

O22.86

OCannot be determined

Process

Processing Time (minutes)

Milling—table top

10

Milling—table stand

5

Assembly

15

Finishing

20

Explanation / Answer

Capacity of the milling machine (in tables per day) with batch size of 10 is 22.86

Batch size: 10

Time: (Time for table tops) + (Time for table stands)

      : (Setup time + processing time for table tops) + (Setup time + processing time for table stands)

      : (30+10*10)+(30+10*5)

      : 210 mins

Capacity in day = (# of units/Time for table machine)*(duration in day)

                       = (10/210)*(8*60)

                       = 22.86 units/day

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