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Standard sewing thread consumption per inch of stitching for different garment sewing machines.
Plain Sewing Machine
Edge Finishing Machine
Flat Seam Construction
Decorative Stitching
Short Explanation :- Calculate the total sewing length of the garment body in inches. Then convert the result into meters by dividing by 39.37.
Note: Length, Width, and Height are usually measured in centimeters (cm).
Cycle Time means the time required to complete one operation. During a time study, the same operation is observed 5–10 times using a stopwatch.
100 ÷ 100 = 1.00
A rating of 100% represents normal working speed. The rating factor is 1.00.
85 ÷ 100 = 0.85
A worker performing below standard speed receives a rating factor of 0.85.
110 ÷ 100 = 1.10
A worker performing faster than standard speed receives a rating factor of 1.10.
Basic Time = 0.375 minute × 1.10
SMV = 0.4125 + (0.4125 × 15%)