Plastic extrusion · Production setup
Plastic Extrusion Setup & Line Balance Calculators
Connect a stable output measurement to product demand, screw kinematics, material exposure, tube drawdown, and downstream cooling space. No login, CAD upload, or vendor equipment selection.
Six independent decisions
Balance the line from measured mass flow to finished product handling.
- 01What is the extruder actually delivering at this recorded screw speed?
Convert a timed, weighed extrudate sample into kg/h and normalized kg/h per screw rpm.
- 02How much mass flow must the extruder supply for this product geometry and take-off speed?
Calculate required extrusion mass flow from final product cross-sectional area, solid density, and line speed.
- 03What peripheral speed corresponds to this screw diameter and rpm?
Convert screw diameter and rpm into screw outside-diameter peripheral speed for setup comparison.
- 04How long does one system hold-up equivalent take to pass at this stable output?
Estimate average material hold-up time from measured system hold-up mass and stable mass flow.
- 05What area drawdown ratio connects this annular die opening to the final tube section?
Compare annular die-exit area with finished tube area for a documented tube or pipe tooling setup.
- 06How much controlled cooling path is needed at this line speed?
Convert take-off speed and a trial-based cooling residence time into required in-water or controlled-cooling path length.
Use one documented operating basis
Keep material grade and condition, screw and die, temperature profile, stable screw rpm, head pressure, mass-flow interval, product dimensions, take-off speed, cooling condition, and product acceptance criteria with every result. These arithmetic tools expose mismatches; they do not invent equipment capability or a universal process window.
Reference foundation: SPE Extrusion Division: Output Calculations · SPE Extrusion Division: Estimating Flow Rate of a Continuous Sheet Line · SPE Extrusion Division: Planning the Extrusion Line · Thermo Fisher: Residence-Time Distribution in Extrusion · DuPont Surlyn Extrusion Guide · Eastman: Extrusion of Tubing and Profiles.