In garment manufacturing, the skills and expertise of a sewing operator are being presented in the “Efficiency” term. As a result, a garments factory capacity is estimated according to operator efficiency or line efficiency. Hence, efficiency is one of the most used performances measuring tools. By using the following formula you can calculate operator efficiency in textile and garments industry. An operator with higher efficiency produces more garments than an operator with lower efficiency in the same time frame. When operators work with higher efficiency, the manufacturing cost of the factory goes down.
Before calculate sewing operator efficiency data needs to first be collected regarding sewing operator efficiency which includes total working time, such as the total number of hours that an operator works in a day or a week, and Total Pieces Produced is the pieces he produces in that particular time frame.
How to Calculate Sewing Operator Efficiency?
To calculate the operator efficiency following formula should be followed by any industrial engineer. In this respect, efficient calculation of sewing operator efficiency can be determined through the following steps:
Operator efficiency (%) = (Total Minute produced /Total on-standard Minute Attended)*100
Where,
Total minute produced=Total piece made X SAM of the operation (Cutting or Sewing)
Total on-standard Minute Attended=Total hours worked in the machine X 60
Example:
Let’s say an operator worked an operation of SAM 0.75 minutes. In an 8 hours shift day he produces 300 garments. Based on the efficiency calculating formula, that operator’s on-standard efficiency
= (300 x 0.75) / (8 X 60) X 100%
= 225/480 X 100%
= 47%
Methods to Enhance Output among Sewing Operators is study definable activity flow patterns to determine areas of weakness in the production system.
Also may read: Daily Production Capacity Calculator

