Practical Process of RMG Industry

What is Standard Minute Value - SMV

What is Standard Minute Value - SMV
SMV Calculation

1. SMV= Basic Time + allownces

2. Line target= (total MP X WH X 60)/SMV

3. EFFICIENCY= (Totl Prodn x SMV X 100)/( Total MP x WH X 60)

4. Line performance= ( Line output x 100 )/Line target

5. Productivity = (Line Output x 100 )/ Line input

6. Spent Minute = MP x WH x 60

7. Produce Minute = SMV or SAM x Line Output Quantity

8. Shipped Minute = SMV x Shipment Quantity

9. (CPM) Cost per minute (ship minute baisses) = Factory overhead cost/Earn Ship Minute

10. (CPM) Cost per minute (production baisses) = Factory overhead cost/Produce Minute

11. CPMPH=(Direct labour cost+Factory OH)/(Total MP x working day in a month x working hour in a day)

12. ACPPM=

13. CM(cost of making) = SMV x CPM

14. Basic pitch time (BPT)= Total Cycle Time/Total MP

15. Worker potential = 3600sec/Basic Pitch Time

16. SPT (standard total processing time)= BPT x (1+allowance time)

14.MMR(man machine ratio to = total factory manpower/total utilize time

15. Productivity Gap= (worker potential - current prodn) x 100/ current prodn

16. Watch ERROR% = Elapsed Time – (TEAS+TEBS)/ Elepsed Time x 100

TEAS=Time elapsed after study ; TEBS= Time elapsed before study

17. UCL= BPT/Wanted Organigation Efficiency% it may (65-95)%

18. LCL=( BPT x 2)-UCL

UCL=upper control limit ; LCL=lower control limit

19. Required days for the schedule= Total order Quantity/Average target

20. Re-SMV= (Total MP x 60)/Average target

21. Loss pieceses= (Total loss hours x 60) /Re-SMV


More SMV Calculation


1) Roll pick up

Sec =

Avg. Time (Sec) × Total Roll × M.P / Lay × Marker× 60

2) Marker Setting

Before Lay =

After Lay =

3) Layering

Sec =

Avg. Time (Sec) × Lay × M.P / Lay × Marker × 60


4) Cutting


Parts =

Avg. Time (Sec) × Marker Pcs. × Pattern parts / Lay × Marker × 60

Bundle Chart Registry


Total Time (Sec) / Lay × Marker × 60

5) Bundle Chart Writing

Avg. Time (Sec) × Marker Pcs. × Pattern parts / Lay × Marker × 60

6) Numbering

Parts =

Avg. Time (Sec) × Marker Pcs. × Pattern parts / Lay × Marker × 60

7) Bundling

Parts =

Avg. Time (Sec) × Marker Pcs. × Pattern parts / Lay × Marker × 60

8) Checking

Avg. Time (Sec) × Marker Pcs. × Pattern parts / Lay × Marker × 60

Total + (Total × 12-15%) =



Engr. Kh. Mashiur Rahman Email: garmentspedia@gmail.com

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