Industrial Engineering:
Industrial Engineering is concerned with the design, improvement and installation of integrated system of men, materials and equipment. The principle objective of industrial engineering is to increase the productivity by eliminating waste and non-value adding operations and improving the effective utilization of resources.
Industrial engineering can explain from the following equation:
Industrial Engineering (IE) = Production ↑ Cost ↓ Proper use of all elements ↑ Efficiency ↑ Profit ↑
Useful Formulas for Industrial Engineers in Apparel Industry
Industrial engineers, garment professionals frequently used different types of formula for measuring factory performance. Besides, Formula helps to get the result quicker and it specifically mentions. Following are the common formulas those are used by garment industry professionals. It will be very helpful for new comers in this industry.
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1. Daily Line Target = …………………………………..........................…………………......……….
Garment SAM
2. Garments SMV = Basic time + (Basic time x Allowance)
Target per hour
3. Theoretical Manpower = …………….........…………………
Process capacity per hour
Total working minutes in a day x line efficiency %
4. Individual operator target = ………………………......…….............…………………
Operation SAM
Total output x Operation SMV
5. Individual OP efficiency = ……………………………………….. ×100
Total working minute
Total number of output per day per line
6. Line Labor Productivity = ……………..............……………………….
Number of worker worked
Total number of output per day per line
7. Line Machine Productivity = ……………………………......................………….
Number of machines used
Total output per day per line x SAM
8. Line Efficiency = ………………………………................................………… x 100
Total operator per line x total working minutes per day
9. Standard Pitch Time (S.P.T) = Basic Pitch Time (B.P.T) + Allowances (%)
Total headcount - No of machine operator
10. Factory direct & indirect ratio = …………………………………………………….
Total no of operators
Total salary of the labor in the month
11. Labor cost per minute = ……………........…........…………………………………….
Total SAM produce by those labors in that month
No of machine assigned x Hourly target qty
12. Estimated production per hour = …………………………………………………………….
Calculated no of machines
Total minute in a shift x Line efficiency
13. Estimated machine productivity = ………………………………………………………..
Garments SMV
Worker potential production P.H - Current production pcs P.H
14. Productivity Gap % = ………………….………...……..................………………………… ×100
Current production pcs per hour
Total cost incurred in production in a day
15. Production Cost pet unit = …………………………….....……………………
No. of garment produced in a day
Total units produce by the line
16. Machine productivity = …………......……..............................………………………..
Total no of machines use to produce those garments
Basic pis time
17. Factory efficiency = ………………….. x 100
Bottle neck time
Work hour
18. Factory capacity = …...........….......…. x Total worker x Working day x Efficiency
Garments SMV
Total manpower
19. Man & machine ratio = ………………………………
Total machine
Target daily output
20. Required no of operator = ……………....……........…….
Daily output per operator
