Screw Recovery Time Calculator

Estimate recovery time from shot volume and measured plasticizing rate. Use this as a documented planning estimate, then validate it against the actual machine, mold, resin, and process.

Formula and method

Recovery time = shot volume / plasticizing rate.

Use a rate measured for the exact resin, back pressure, screw speed, and melt condition.

Inputs and units

Use controlled records, CAD, measured production data, the exact resin data sheet, or machine-maker specifications. Keep the material and time basis with the result.

Worked example

180 cm3 / 24 cm3/s = 7.5 s.

What the result supports

This result is a first-pass screen for process planning. Use it to identify the next record or engineering check, not as a release decision.

Sanity check

Check the unit basis and whether all quantities describe the same cavity, shot, machine, or production window before comparing values.

Important limitation

Do not substitute a catalogue maximum rate for a validated process rate.

Reference: ARBURG: cycle-time optimisation.

Next calculation

Fill Time Calculator

FAQ

What must be checked after using screw recovery time calculator?

Retain the input source and compare this estimate with the applicable machine, mold, supplier, or production record before relying on it.