Implementing a Mixed Model Kanban System: The Lean Replenishment Technique for Pull Production

We established previously that the head machining resource consists of two similar, but not identical, machine centers. During the resource allocation process, the team will determine which heads will be produced on which machine. The Emca team will be guided by their A-B-C-D analysis findings.
The machine cycle times for each golf club head were determined and are shown below.
| MACHINE CYCLE TIME ANALYSIS | ||
|---|---|---|
| Head Part Number | Machine Center 1 | Machine Center 2 |
| PL10 | 45 | 36 |
| PR20 | 45 | 36 |
| PWL10 | 50 | 40 |
| PWR20 | 50 | 40 |
| IR10 | 65 | 30 |
| IR20 | 65 | 30 |
| IR30 | 65 | 30 |
| IL10 | 65 | 30 |
| IL20 | 65 | 30 |
| IL30 | 65 | 30 |
| DR10 | 120 | 85 |
| DR20 | 120 | 85 |
| DR30 | 120 | 85 |
| DL10 | 120 | 85 |
| DL20 | 120 | 85 |
| DL30 | 120 | 85 |
A quick analysis indicates that regardless of which product is being produced, Machine Center 2 has a faster cycle time than Machine Center 1. As such, Machine Center 2 is the machine that Emca will want to run most, if not all, of their "A" and "B" items. These higher volume items are typically the leverage points in being able to maximize product velocity. In doing so, Emca will maximize inventory turnover performance and minimize manufacturing lead time for these items. Accordingly, Machine Center 1 has a slower cycle time, but also provides for a shorter set-up time. The team rightly determined Machine Center 1 should be used for the "C" items. The Machine Allocation Table, shown below, summarizes their initial...