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Winding calculator

Winder Expected Efficiency

Calculate expected winder efficiency based on yarn length, winding speed, and breaks per bobbin.

Expected Efficiency (%)
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Method and formula

Expected Efficiency E (%)=Running TimeRunning Time+Downtime×100,Running Time=Yarn Length/Bobbin (m)Winding Speed (m/min),Downtime=(Breaks/Bobbin×12(repair time in sec))+98(doff time in sec)60\text{Expected Efficiency E (\%)} = \frac{\text{Running Time}}{\text{Running Time} + \text{Downtime}} \times 100, \\[1em] \text{Running Time} = \frac{\text{Yarn Length/Bobbin (m)}}{\text{Winding Speed (m/min)}},\\[1em] \text{Downtime} = \frac{(\text{Breaks/Bobbin} \times {12\text{(repair time in sec)})} + 98 \text{(doff time in sec)}}{60}

Input variables

VariableExpected entry
Yarn length per bobbin (m)Enter a positive measured value.
Winding speed (m/min)Enter a positive measured value.
Breaks per bobbinEnter 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

  • Expected Efficiency (%)