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Blown Film Extrusion Blow-Up Ratio (BUR) & Take-Up Ratio (TUR) Calculator

Easily calculate and compute blown film extrusion blow-up ratio (bur) & take-up ratio (tur) calculator with accurate equations, live formulas, and expert guidance.

Calculated Result
2.39 ratio

Blow-Up Ratio (BUR)

Blow-Up Ratio (BUR)

2.39 ratio

Blow Up Ratio Bur

2.3873241463784303

Take Up Ratio Tur

12

Bubble Diameter Mm

477.46482927568604

Final Film Thickness Microns

20.94395102393195

2.39 — ratio

Calculation Breakdown

  1. Applied FormulaCalculates the transverse Blow-Up Ratio (BUR), machine-direction Take-Up Ratio (TUR), and final film gauge thickness (microns) in continuous blown film bubble extrusion.\text{BUR} = \frac{D_{\text{bubble}}}{D_{\text{die}}} = \frac{2 W_{\text{layflat}}}{\pi D_{\text{die}}}, \quad \text{TUR} = \frac{v_{\text{nip}}}{v_{\text{die}}}, \quad t_{\text{film}} = \frac{h_{\text{gap}}}{2 \cdot \text{BUR} \cdot \text{TUR}}

Blown Film BUR & TUR Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.00.61.21.82.4Blow-Up Ratio (BUR)

What Is the Blown Film Extrusion Blow-Up Ratio (BUR) & Take-Up Ratio (TUR) Calculator?

The Blown Film Extrusion Blow-Up Ratio (BUR) & Take-Up Ratio (TUR) Calculator computes results using established domain formulas, verified conversion factors, and user-entered parameters.

How Does the Blown Film Extrusion Blow-Up Ratio (BUR) & Take-Up Ratio (TUR) Calculator Work?

Calculates the transverse Blow-Up Ratio (BUR), machine-direction Take-Up Ratio (TUR), and final film gauge thickness (microns) in continuous blown film bubble extrusion.

Blown Film Extrusion Blow-Up Ratio (BUR) & Take-Up Ratio (TUR) Calculator Formula & Variables

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

BUR=DbubbleDdie=2WlayflatπDdie,TUR=vnipvdie,tfilm=hgap2⋅BUR⋅TUR\text{BUR} = \frac{D_{\text{bubble}}}{D_{\text{die}}} = \frac{2 W_{\text{layflat}}}{\pi D_{\text{die}}}, \quad \text{TUR} = \frac{v_{\text{nip}}}{v_{\text{die}}}, \quad t_{\text{film}} = \frac{h_{\text{gap}}}{2 \cdot \text{BUR} \cdot \text{TUR}}

Calculates the transverse Blow-Up Ratio (BUR), machine-direction Take-Up Ratio (TUR), and final film gauge thickness (microns) in continuous blown film bubble extrusion.

How to Use the Blown Film Extrusion Blow-Up Ratio (BUR) & Take-Up Ratio (TUR) Calculator

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

Step-by-Step Example Calculation

Blown Film Extrusion Blow-Up Ratio (BUR) & Take-Up Ratio (TUR) Calculator Example

Input Values:

dieDiameterMm:200
layflatWidthMm:750
dieLipGapMm:1.2
dieExitVelocityMpm:3
haulOffSpeedMpm:36
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required ratio.

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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