# How to Calculate Winding Efficiency with Example

Winding:
Winding is basically transferring yarn from one type of package to another. This simple definition may make the winding sound like a trivial process, however, it is an important and essential process in warping and spinning for ring-spun yarns. In this article, we will know how to calculate winding efficiency with an example.

Winding Efficiency:
The ratio of actual production and calculated production is called winding efficiency. It is expressed as a percentage. The efficiency of a highly automated winding operation is calculated by a modification of the mathematical model developed for a similar problem.

………………………………………..Actual Production
Winding Efficiency = ………………………………….. X 100
…………………………………….Calculated Production

### How to Calculate Winding Efficiency with Example

Note: If you want to understand this problem then before you must read the following articles.

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Example:
How long will it take for a winder to wind 3.00 lbs of 16 Ne yarn if the winder operates at 745yd/min with an efficiency of 95%?

We know that,

Time, t = length / speed

= L / V

Here,

L = Length of yarn in the package
Speed, V = 745yd/min.
Weight of the yarn in the package, W =3.00 lbs
Yarn count, Ne = 16

We know that,
……………………………………L × w
Yarn count, Ne = ………………………………..
…………………………………….W × l

……………………………Ne × l × W
Therefore, L = ……………………………
………………………….……..W

…….16 x 3.00 x 840
= ……………………………
………………1

= 40,320 yds

……………..40,320
So, t = …………………..
……………..745

= 54.12 minutes (assuming no breaks or stops)

To consider the effect of efficiency,

………………………..54.12
Therefore, t = ………………
………………………..0.95

= 56.97 minutes

Key Factors of Winding Efficiency:

There are some key factors of winding efficiency which has pointed out in the following:

1. Yarn count,
2. Yarn quality,
3. Capacity utilization,
4. Power failure,
5. Maintenance and overhauling,
6. Worker efficiency,
7. Workload per worker,
8. Humidity,
9. Creeling time,
10. Doffing time,
11. Spindle of drum speed and so on.
```Author of this Article:
M. Hossen Uzzal
Production Officer
Monno Fabrics Ltd., Manikgonj
Email: [email protected]```

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