Printed Electronics & Flexible Hybrid Electronics worked example

Drying Dwell at 7.2% dwell allowance for ramp and buffer: a worked example

This worked example runs the drying dwell numbers for a tougher week than the baseline: 7.2% dwell allowance for ramp and buffer instead of the typical 10%. Drying dwell is the total oven or IR time a batch of freshly printed flexible circuits needs before the conductive ink is solvent-free and handleable.

The inputs for this scenario

  • Wet-printed pieces to dry this run: 120 units (held at the documented default)
  • Dryer throughput (pieces cleared per hour): 12 units / hr (held at the documented default)
  • Dwell allowance for ramp and buffer: 7.2 % (the input this scenario stresses; the baseline uses 10)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base drying dwell time = required work รท processing rate.
  • Adjusted run time works out to 10.72 hr at these inputs, and this is the headline figure for the scenario.
  • Base run time works out to 10 hr at these inputs.
  • Allowance applied works out to 7.2 % at these inputs.
  • Process rate works out to 12 pieces / min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where dwell allowance for ramp and buffer sits at 10% and the headline result is 11 hr, this scenario comes in 2.55% below the baseline at 10.72 hr.
  • Use it when scheduling a print-and-dry job, reserving oven or IR-tunnel time, or checking whether a batch fits inside an available shift window. 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

  • Adjusted run time: 10.72 hr (headline result)
  • Base run time: 10 hr
  • Allowance applied: 7.2 %
  • Process rate: 12 pieces / min

Run it with your numbers

  • To rerun this with your own numbers, open the live Drying Dwell calculator, set dwell allowance for ramp and buffer to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.