Leather, Footwear & Accessories Manufacturing worked example

Lasting Station Capacity at 99% expected lasting machine uptime: a worked example

Push expected lasting machine uptime up to 99% and the picture changes. This example computes every intermediate figure at that operating point. Use this when checking whether your lasting machines can handle a new order, planning shift schedules, justifying additional lasting equipment, or identifying the bottleneck station in your production line.

The inputs for this scenario

  • Pairs lasted per machine cycle: 1 pairs / cycle (unchanged)
  • Available lasting cycles per shift: 480 cycles (unchanged)
  • Expected lasting machine uptime: 99 % (raised for this scenario; the documented default is 88)
  • First-pass yield after lasting: 95 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross lasting capacity = pairs per cycle x available cycles per shift) to the inputs above produces each figure below.
  • At this operating point the engine returns 451 units for good pairs per shift, the number this scenario is built around.
  • At this operating point the engine returns 480 units for gross lasting capacity (pairs).
  • At this operating point the engine returns 4.8 units for pairs lost to downtime.
  • At this operating point the engine returns 23.76 units for pairs lost to quality rejects.

How this compares with the baseline

  • Against the tool's baseline example, where expected lasting machine uptime sits at 88% and the headline result is 401 units, this scenario comes in 12.5% above the baseline at 451 units.
  • It computes good (saleable) pairs lasted per shift after applying machine uptime and first-pass yield to gross cycle capacity. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Good pairs per shift: 451 units (headline result)
  • Gross lasting capacity (pairs): 480 units
  • Pairs lost to downtime: 4.8 units
  • Pairs lost to quality rejects: 23.76 units

Run it with your numbers

  • Every input above is editable in the live Lasting Station Capacity calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.