Sheet Metal Stamping & Press Lines worked example

Shift Output at 65% line efficiency: a worked example

This worked example runs the shift output numbers for a tougher week than the baseline: 65% line efficiency instead of the typical 90%. Shift output is the real units-per-hour a stamping press line delivers once you discount for the efficiency it never quite hits.

The inputs for this scenario

  • Good stamped parts completed this shift: 1,200 units (held at the documented default)
  • Press runtime this shift: 8 hr (held at the documented default)
  • Line efficiency (OEE-style): 65 % (the input this scenario stresses; the baseline uses 90)

Working through the calculation

  • The calculation starts from the formula this tool documents: Raw shift output = completed output รท runtime.
  • Effective throughput works out to 97.5 units / hr at these inputs, and this is the headline figure for the scenario.
  • Raw throughput works out to 150 units / hr at these inputs.
  • Efficiency works out to 65 % at these inputs.
  • Runtime works out to 8 hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where line efficiency sits at 90% and the headline result is 135 units / hr, this scenario comes in 27.78% below the baseline at 97.5 units / hr.
  • Use it when building shift schedules, sizing downstream buffers, or checking whether a press is achieving its rated stroke rate. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Effective throughput: 97.5 units / hr (headline result)
  • Raw throughput: 150 units / hr
  • Efficiency: 65 %
  • Runtime: 8 hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Shift Output calculator, set line efficiency to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.