Finishing worked example

Hanging Spacing at 65% line efficiency: a worked example

This worked example runs the hanging spacing numbers for a tougher week than the baseline: 65% line efficiency instead of the typical 90%. Calculate hook spacing needed for target line output at a given conveyor pitch and efficiency.

The inputs for this scenario

  • Target line output: 400 parts / hr (held at the documented default)
  • Hook spacing or pitch: 18 in (held at the documented default)
  • Line efficiency: 65 % (the input this scenario stresses; the baseline uses 90)

Working through the calculation

  • The calculation starts from the formula this tool documents: Required speed = target output × pitch ÷ efficiency.
  • Required speed works out to 15.38 in spacing at these inputs, and this is the headline figure for the scenario.
  • Required throughput rate works out to 615 pieces / hr at these inputs.
  • Pitch works out to 18 in at these inputs.
  • Efficiency works out to 65 % 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 11.11 in spacing, this scenario comes in 38.46% above the baseline at 15.38 in spacing.
  • Use it when commissioning a finishing line, changing part mix, or diagnosing why a batch is missing rate — before you touch the drive VFD. 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

  • Required speed: 15.38 in spacing (headline result)
  • Required throughput rate: 615 pieces / hr
  • Pitch: 18 in
  • Efficiency: 65 %

Run it with your numbers

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

Last reviewed 2026-05-12.