Work it in order, the way the calc runs. The sequence drill first, from the lesson's own worked numbers, then the failure scenario, then your Riverside capacity proof.
Riverside's confirmed rate is 20 CPM, in writing from Dana. Rebuild the lesson's worked sorter sequence one step at a time. Every figure you need appeared in the lesson; show the arithmetic, then the result. Keep the Calculation Logic Guide open, it's the formula authority.
| Step | Formula and your work | Result |
|---|---|---|
| 1. CFPM | (20 × 20 / 12) × 1.15 = | |
| 2. SGR, min carton | (9 + 44) / 9 = | |
| 3. Required sorter speed | 3.2 × 38.3 = 122.6, rounded up = | |
| 4. Gap produced | (125 × 12 / 20) - 20 = | |
| 5. Model-minimum check | Produced gap vs the 9 in model minimum. Pass or fail, and why: | |
| 6. Geometry check | (15 × sin 30°) + 2 = ______ , produced gap vs that. Pass or fail: | |
| 7. Takeaway spur speed | 125 / cos 30° = 125 / 0.866 = |
Both gap checks have to pass, not the higher of the two by luck. Both, on purpose.
Two failure calls. Read each, then write your move and the reason.
A sorter's gap check fails: the gap produced at sorter speed falls below the model-minimum gap. Name the three levers you could pull, one consequence of each, and circle the one you can't pull without the customer.
Ray's in-room estimate for the WMS response was half a second, flagged as a guess. His correction email confirms one second under peak load. At the guide's scan-example speed of 120 FPM, a carton covers 24 inches in that one-second window. Say what the scan-to-divert distance has to cover now, and name what else changes the moment the belt speed changes.