Comparing automation throughput with actual demand

Compare what a proposed automation flow can complete in each relevant time window with the work due in that window. Use the same unit and end point on both sides, show every condition behind the proposed rate, and note that a daily average cannot show whether a dispatch peak will clear.

Define the work due

Use timestamped orders from a representative period. Separate ordinary days, busy days and unusual events. For each release interval, count eligible work and its deadline, and state how held, cancelled and exceptional work is treated.

An order can contain several lines and pieces. If equipment is quoted in presentations, totes or cycles per hour, establish how many such events the actual order mix needs. Do not compare a presentation rate directly with an order rate.

Key Metrics for Warehouse Automation Capacity Planning

Compare a matched interval

Suppose, solely to show the arithmetic, that 360 eligible order lines must reach packing within three hours. That requires an average of 120 completed lines per hour. A quoted station rate of 150 lines per hour meets that average only if it means completed lines and the station works throughout the window.

Under an illustrative assumption of 80% productive time, its effective rate is 120 lines per hour. That leaves no allowance for a surge within the window or a slower stage. These figures are not a supplier claim or site result.

Use observed demand and the supplier's stated conditions for the real calculation. Test shorter intervals around release waves and carrier cut-offs. A flow that catches up later may still miss the work due.

Find the limiting stage

Follow goods through induction, replenishment, presentation, picking, sorting and packing as applicable. Compare each required stage in a common work unit and interval. A workstation rate is not automatically the output of the full order path.

Check shared resources: several stations may depend on one replenishment route or pack area. Show the staff and break assumptions, fault allowance, backlog and restart time. Record both sustained output and the busy pattern the operation needs to clear.

Make the capacity decision

Request separate scenarios for current mix, an observed busy interval and forecast growth. Each should show demand, assumptions, expected or demonstrated output, limiting stage and unfinished work at the cut-off.

Label site records, supplier estimates and demonstrations separately; a demonstration with different products or order structure does not verify the site's rate.

Accept the capacity case only when the units and useful end point match, the required window clears with a stated margin, and exceptions have a route. Otherwise, revise the design or scope. The margin is a site decision, not a universal percentage.

Steps to Match Automation Capacity with Real Demand