Advanced Technical Ceramics worked example

Ceramic Production Ramp Planner at 56% ramp kiln and press uptime: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop ramp kiln and press uptime to 56%, then walk the calculation through step by step. Estimate good ceramic parts during a production ramp from parts per cycle, planned cycles, ramp uptime, and expected yield.

The inputs for this scenario

  • Good parts per fired ramp cycle: 180 parts/cycle (held at the documented default)
  • Planned ramp kiln cycles: 10 cycles (held at the documented default)
  • Ramp kiln and press uptime: 56 % (the input this scenario stresses; the baseline uses 78)
  • First-pass sintered yield during ramp: 72 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross ramp output = parts per ramp cycle × planned ramp cycles.
  • Expected good ramp output works out to 726 good ramp parts at these inputs, and this is the headline figure for the scenario.
  • Gross ramp output works out to 1,800 good ramp parts at these inputs.
  • Ramp downtime loss works out to 792 good ramp parts at these inputs.
  • Ramp yield loss works out to 282 good ramp parts at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where ramp kiln and press uptime sits at 78% and the headline result is 1,011 good ramp parts, this scenario comes in 28.21% below the baseline at 726 good ramp parts.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to ramp kiln and press uptime, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It assumes uptime and yield are independent and constant across the ramp; in reality early ramp cycles usually run worse than later ones, so a single blended yield can overstate week-one output.

Results at a glance

  • Expected good ramp output: 726 good ramp parts (headline result)
  • Gross ramp output: 1,800 good ramp parts
  • Ramp downtime loss: 792 good ramp parts
  • Ramp yield loss: 282 good ramp parts

Run it with your numbers

  • To rerun this with your own numbers, open the live Ceramic Production Ramp Planner calculator, set ramp kiln and press uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.