The formula used for calculating available capacity of the sewing line
has been given below. The available capacity of a line is presented in
minutes or hours.
Sewing room Capacity per Day= {(No. of machine x daily work hours x 60) – absenteeism %} x Efficiency % (unit in minutes)
Monthly Capacity = Daily Capacity X No. of working days in a month
Monthly Capacity = Daily Capacity X No. of working days in a month
The capacity of a line depends on the average efficiency% of the line
and operator absenteeism%. First line wise capacity is calculated and
then added all line's capacity to calculate available capacity of the
floor.
For example: A factory floor has 5 lines. Factory works for 8
hours day. No of total operators, line efficiency and absenteeism
percentage are as given in the following table.
Line No.
|
No. of Operator
|
Minutes/Day (Daily working Hrs. X
60)
|
Line Efficiency
|
Absenteeism %
|
Capacity available
|
Line 1
|
30
|
480
|
40%
|
10%
|
5184.0
|
Line 2
|
28
|
480
|
50%
|
10%
|
6048.0
|
Line 3
|
32
|
480
|
55%
|
10%
|
7603.2
|
Line 4
|
32
|
480
|
45%
|
10%
|
6220.8
|
Line 5
|
25
|
480
|
39%
|
10%
|
4212.0
|
Total Sewing floor capacity per day (in minutes)
|
29268.0
| ||||
Available capacity of the line will vary on the factors such as i) no.
of operators working in the line, ii) Line’s existing efficiency and
iii) operator absenteeism percentage.
Capacity can be also represented in pieces. To get it divide total capacity (in minutes) by SAM of the garment to be made in the floor. Suppose a factory produces basic full sleeve shirt of SAM 20. Shirt production capacity of the floor will be 1463 pieces per day (29268/20).
Capacity can be also represented in pieces. To get it divide total capacity (in minutes) by SAM of the garment to be made in the floor. Suppose a factory produces basic full sleeve shirt of SAM 20. Shirt production capacity of the floor will be 1463 pieces per day (29268/20).
Thank You
Arifin
Email:arifin@shishirbindu.biz
WEB:www.shishirbindu.biz
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