Injection Molding worked example

Resin Drying Time at 17% heat-up and bed-stabilization allowance: a worked example

What does the result look like when heat-up and bed-stabilization allowance reaches 17%? The full calculation is worked below with real intermediate numbers. Use this to plan production start times around dryer requirements, schedule resin preparation for the next shift, or size dryer capacity for a new molding cell.

The inputs for this scenario

  • Resin batch size to dry: 100 kg (unchanged)
  • Desiccant dryer throughput rate: 25 kg/hr (unchanged)
  • Heat-up and bed-stabilization allowance: 17 % (raised for this scenario; the documented default is 15)

Working through the calculation

  • Applying the documented formula (Base drying time = Batch size / Dryer throughput rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 4.68 hrs for total drying time (with heat-up), the number this scenario is built around.
  • At this operating point the engine returns 4 hrs for net drying time.
  • At this operating point the engine returns 17 % for heat-up/stabilization time added.
  • At this operating point the engine returns 25 pieces / min for dryer throughput rate.

How this compares with the baseline

  • Against the tool's baseline example, where heat-up and bed-stabilization allowance sits at 15% and the headline result is 4.6 hrs, this scenario comes in 1.74% above the baseline at 4.68 hrs.
  • A figure at this level is achievable when heat-up and bed-stabilization allowance is genuinely sustained, not just peaked for a shift. It's a throughput-and-buffer estimate, not a substitute for the resin supplier's specified drying temperature, dew point, and minimum residence time — always verify against the datasheet.

Results at a glance

  • Total drying time (with heat-up): 4.68 hrs (headline result)
  • Net drying time: 4 hrs
  • Heat-up/stabilization time added: 17 %
  • Dryer throughput rate: 25 pieces / min

Run it with your numbers

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

Last reviewed 2026-05-12.