Isaacson Dental Inc. is considering a new lean product cell. The present manufacturing approach produces a product in four separate steps. The production batch sizes are 50 units. The process time for each step is as follows: Line Item Description Time Process Step 1 6 minutes Process Step 2 12 minutes Process Step 3 9 minutes Process Step 4 3 minutes The time required to move each batch between steps is 6 minutes. In addition, the time to move raw materials to Process Step 1 is also 6 minutes, and the time to move completed units from Process Step 4 to finished goods inventory is 6 minutes. The new lean layout will allow the company to reduce the batch sizes from 50 units to 2 units. The time required to move each batch between steps and the inventory locations will be reduced to 1 minute. The processing time in each step will stay the same. Determine the value-added, non-value-added, and total lead times, and the value-added ratio under the (a) present and (b) proposed production approaches. If required, round percentages to one decimal place. Line Item Description Present Approach Proposed Approach Value-added time fill in the blank 1 min fill in the blank 2 min Non-value-added time fill in the blank 3 min fill in the blank 4 min Total lead time fill in the blank 5 min fill in the blank 6 min Value-added ratio (as a percent) fill in the blank 7 % fill in the blank 8 %
Isaacson Dental Inc. is considering a new lean product cell. The present manufacturing approach produces a product in four separate steps. The production batch sizes are 50 units. The process time for each step is as follows:
Line Item Description | Time |
---|---|
Process Step 1 | 6 minutes |
Process Step 2 | 12 minutes |
Process Step 3 | 9 minutes |
Process Step 4 | 3 minutes |
The time required to move each batch between steps is 6 minutes. In addition, the time to move raw materials to Process Step 1 is also 6 minutes, and the time to move completed units from Process Step 4 to finished goods inventory is 6 minutes.
The new lean layout will allow the company to reduce the batch sizes from 50 units to 2 units. The time required to move each batch between steps and the inventory locations will be reduced to 1 minute. The processing time in each step will stay the same.
Determine the value-added, non-value-added, and total lead times, and the value-added ratio under the (a) present and (b) proposed production approaches. If required, round percentages to one decimal place.
Line Item Description | Present Approach | Proposed Approach |
---|---|---|
Value-added time | fill in the blank 1 min | fill in the blank 2 min |
Non-value-added time | fill in the blank 3 min | fill in the blank 4 min |
Total lead time | fill in the blank 5 min | fill in the blank 6 min |
Value-added ratio (as a percent) | fill in the blank 7 % | fill in the blank 8 % |
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