The formula used for calculating the available capacity of the sewing line is discussed here. 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)

 Sewing Line
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 the available capacity of the floor.

Things you need to know prior to using the above formula for calculating line capacity

• Number of sewing machine in a line
• Shift hours in a day
• Average operator absenteeism percent
• Average line efficiency%

An 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 on 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).

Also read: How to calculate production capacity of garment factory?

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Online Clothing Study: Formula for Calculating Sewing Room Capacity
Formula for Calculating Sewing Room Capacity
Sewing floor capacity calculation method, and formula with examples.
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