Saw Sand Drill Assemble Mark Cycle time 20 seconds 15 seconds 30 seconds 25 seconds 10 seconds per part Setup time 3 minutes 4 minutes 0 minutes 3 minutes 8 minutes per batch
Anguilla Manufacturing is interested in using the data col-
lected during Value Stream Mapping to evaluate the current
state performance of the capacity of its manual assembly line
process under different batch size assumptions. The avail-
ability of processing per shift, after accounting for breaks and
a mid-shift employee meeting, is 436 minutes. The current
operating characteristics of each processing step are found
in the table below. Note that each step can only process
one part at a time and all steps must process the same sized
batches. a. Calculate the average processing time per unit and the
capacity at each step assuming batch sizes of:
i. 10 units
ii. 20 units
iii. 30 units
iv. 40 units
b. Identify the bottleneck operation and the line’s processing
capacity for each batch size listed in part a.
c. Explain why batch sizes beyond 40 units will not increase
the line’s processing capacity further.
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