Some Essential Formula and Example for Industrial Engineer (IE)

Some Important Formula & Example for IE



   1. Standard Pitch Time (S.P.T) = Basic Pitch Time (B.P.T) + Allowances (%)
         
  • GSD = (Man power * Work hour) / Target          
  • SMV = Basic time + (Basic time * Allowance)          
  • Basic time = Observed time * Rating
  • Observed time = Total Cycle time / No of cycle
  • Rating = (Observed Rating * Standard rating) / Standard rating
  • Efficiency = (Earn minute * Available minute) * 100
  • Earn minute = No of Pc’s (Production) * Garments SMV
  • Available minute = Work hour * Manpower
  • Organization Efficiency = (Basic pis time / Bottle neck time) * 100
  • Basic pis time = Total GMT SMV / Total Manpower
  • UCL = Basic pis time / Organization Efficiency
  • LCL = 2 * Basic pis time – UCL
  • Capacity = 60 / Capacity time in minute
  • Cycle Time = 60 / Team target
  • Capacity Achievable = Capacity * Balance
  • Daily output = Work hour / SMV
  • Factory capacity = (Work hour / SMV) * Total worker * Working day * Efficiency
  • CPM = (Total over head cost of the month / No of SMV earners * Work minutes) *Efficiency
  • Required no of operator = Target daily output / Daily output per operator

Example:

1. Efficiency = Output/Input

                      = (SMV*Product Quantity) / (Worker*Working Hour*60)

                      = [(38.50*700) / (60*10*60)]*100

                      = 74% (Line Efficiency)

Here,
SMV=38.50
Working hour=10
No. of worker=60

2. Target/hour = (60/SMV)*Efficiency%

                        = (60/0.85)*70%

                        = 50 pcs/hour

Here,
SMV=0.85
Efficiency=70%

3. Target/line = [(No of worker*working hour*60)/SMV]*Efficiency%

                       = [(75*10*60)/23.5]*60%

                       = 1150 pcs

Here,
No of workers=75
Working hours=10
SMV=23.5
Efficiency=60%

4. Required days for the schedule = Total order quantity/Average target

                                                         = 50000/2000

                                                         =25

Here,
Average target=2000
Order quantity=50000

5. CM of garments= (Total Production)/(no of worker*work hour)

                               = 250000/(1500*10)

                               =1.66 BDT

Here,
Total Production=250000
No of workers= 1500

6. Factory capacity = [(Work hour*total workers*working day*60)/SMV]*Efficiency

                                = [(10*1500*26*60)/14.13]*55%

                                = 828025 pcs/month


7. Line GSD/day = (Manpower*work hour)/target

                             = (50*10*60)/900

                             = 33

0 comments:

Comment here

Textile Learner is the largest Textile Blog over the net. It is an ultimate reference for textile students. It describes textile articles in comprehensive. It also supplies news on latest textile technology, educational institute news of the world.