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Production calculator

Package Yarn Content

Estimate yarn weight and length in a cylindrical package.

Package weight (kg)
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Package length (m)
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Method and formula

Package Weight (kg)=π×[(Package OD (mm)2×10)2−(Package Tube OD (mm)2×10)2]×(Package Traverse (mm)10)×(Package Density100)1000Package Length (m)=π×[(Package OD (mm)2×10)2−(Package Tube OD (mm)2×10)2]×(Package Traverse (mm)10)×(Package Density100)×90005315Yarn Count (Ne)\begin{aligned} \text{Package Weight (kg)} &= \frac{\pi \times \left[ \left(\frac{\text{Package OD (mm)}}{2 \times 10}\right)^2 - \left(\frac{\text{Package Tube OD (mm)}}{2 \times 10}\right)^2 \right] \times \left(\frac{\text{Package Traverse (mm)}}{10}\right) \times \left(\frac{\text{Package Density}}{100}\right)}{1000} \\[1em] \text{Package Length (m)} &= \frac{\pi \times \left[ \left(\frac{\text{Package OD (mm)}}{2 \times 10}\right)^2 - \left(\frac{\text{Package Tube OD (mm)}}{2 \times 10}\right)^2 \right] \times \left(\frac{\text{Package Traverse (mm)}}{10}\right) \times \left(\frac{\text{Package Density}}{100}\right) \times 9000}{\frac{5315}{\text{Yarn Count (Ne)}}} \end{aligned}

Input variables

VariableExpected entry
Package OD (mm)Enter a positive measured value.
Package tube OD (mm)Enter a positive measured value.
Package traverse (mm)Enter a positive measured value.
Package density (%)Enter a positive measured value.
Yarn count (Ne)Enter a positive measured value.

Calculation workflow

  1. Enter the measurements in the displayed units.
  2. Check the selected yarn, fiber, weave, or trade unit where shown.
  3. Review each calculated output and its unit.
  4. Use Copy results to save the displayed values to recent history.

Outputs

  • Package weight (kg)
  • Package length (m)