Printing, Labels & Industrial Converting worked example

Web Waste at 99% expected web uptime: a worked example

Push expected web uptime up to 99% and the picture changes. This example computes every intermediate figure at that operating point. Use it when web waste in printing, labels and industrial converting is being asked to take on more work and you need to know if there is room.

The inputs for this scenario

  • Good units per press cycle: 4 units / cycle (unchanged)
  • Available press cycles in the window: 480 cycles (unchanged)
  • Expected web uptime: 99 % (raised for this scenario; the documented default is 90)
  • Expected first-pass yield: 97 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross web waste capacity = web waste output per cycle × available web waste cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 1,844 units for good web waste capacity, the number this scenario is built around.
  • At this operating point the engine returns 1,920 units for gross web waste capacity.
  • At this operating point the engine returns 19.2 units for web waste downtime loss.
  • At this operating point the engine returns 57.02 units for web waste yield loss.

How this compares with the baseline

  • Against the tool's baseline example, where expected web uptime sits at 90% and the headline result is 1,676 units, this scenario comes in 10% above the baseline at 1,844 units.
  • It multiplies output per cycle by available cycles for gross capacity, then applies uptime and first-pass yield to get good capacity, and reports the downtime and yield losses separately. 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 web waste capacity: 1,844 units (headline result)
  • Gross web waste capacity: 1,920 units
  • Web waste downtime loss: 19.2 units
  • Web waste yield loss: 57.02 units

Run it with your numbers

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

Last reviewed 2026-05-12.