Lean Manufacturing & Operations worked example

Standard Work Combination Time with manual work time of 88 sec: a worked example

This scenario runs the standard work combination time calculation on the strong side: manual work time of 88 sec, with every other input held at its documented default. Use this when building or auditing a standard work combination sheet to verify that each operator's loop fits within takt time.

The inputs for this scenario

  • Manual work time: 88 sec (raised for this scenario; the documented default is 35)
  • Auto machine time: 20 sec (unchanged)
  • Walk time: 5 sec (unchanged)

Working through the calculation

  • Applying the documented formula (Combination Time = Manual Time + Auto Time + Walk Time) to the inputs above produces each figure below.
  • At this operating point the engine returns 113 sec for total combination time per cycle, the number this scenario is built around.
  • At this operating point the engine returns 88 sec for element 1.
  • At this operating point the engine returns 20 sec for element 2.
  • At this operating point the engine returns 5 sec for element 3 + 4.

How this compares with the baseline

  • Against the tool's baseline example, where manual work time sits at 35 sec and the headline result is 60 sec, this scenario comes in 88.33% above the baseline at 113 sec.
  • Use it when building a Standard Work Combination Table, validating that an operator loop fits under takt, or quantifying machine-wait time inside a cycle. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Total combination time per cycle: 113 sec (headline result)
  • Element 1: 88 sec
  • Element 2: 20 sec
  • Element 3 + 4: 5 sec

Run it with your numbers

  • Every input above is editable in the live Standard Work Combination Time calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.