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Extruder Screw Drive Power & Viscous Dissipation Rate Calculator

Easily calculate and compute extruder screw drive power & viscous dissipation rate calculator with accurate equations, live formulas, and expert guidance.

Extruder screw diameter.

Length-to-diameter ratio (typically 24:1 - 32:1).

Shaft revolutions per minute.

Average viscosity across barrel channel.

Average screw flight channel depth.

Calculated Result
2.6 kW

Drive Power

Drive Power

2.6 kW

Viscous Dissipation Power K W

2.6

Recommended Motor Power K W

3.1

Shear Rate Per Sec

68

Screw Shaft Torque Nm

312

2.6 — kW

Calculation Breakdown

  1. Applied FormulaSizes motor horsepower and evaluates viscous shear heating generated inside screw channels during continuous thermoplastic extrusion.\dot{E}_v = \int_V \tau : \dot{\gamma} \, dV \approx \eta \left(\frac{\pi D N}{H}\right)^2 (\pi D H L)

Extruder Drive Power & Shear Heat Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.00.71.32.02.6Drive Power

What Is the Extruder Screw Drive Power & Viscous Dissipation Rate Calculator?

This tool computes extruder screw drive power & viscous dissipation rate calculator with high precision arithmetic.

How Does the Extruder Screw Drive Power & Viscous Dissipation Rate Calculator Work?

Sizes motor horsepower and evaluates viscous shear heating generated inside screw channels during continuous thermoplastic extrusion.

Extruder Screw Drive Power & Viscous Dissipation Rate Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

E˙v=∫Vτ:γ˙ dV≈η(πDNH)2(πDHL)\dot{E}_v = \int_V \tau : \dot{\gamma} \, dV \approx \eta \left(\frac{\pi D N}{H}\right)^2 (\pi D H L)

Sizes motor horsepower and evaluates viscous shear heating generated inside screw channels during continuous thermoplastic extrusion.

How to Use the Extruder Screw Drive Power & Viscous Dissipation Rate Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Extruder Screw Drive Power & Viscous Dissipation Rate Calculator Example

Input Values:

barrelDiameterMm:65.0
screwLengthToDiameterRatioLD:28.0
screwSpeedRpm:80.0
meanViscosityPaS:380.0
channelDepthMm:4.0
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required kW.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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