Top 5 Daily Useful IE Formula In Garments Industry

As an Industrial engineer, the IE formula is the key to any industrial engineering daily basic work, As IE we need this IE formula in our workplace. This IE formula helps us to easily calculate SMV, Efficiency, Line Capacity, Operator Capacity, Line Balancing, etc. It is an essential element in our workplace that helps us make informed decisions.

SMV (Standard Minute Value) Calculation

SMV is the amount of time required for a qualified worker should spend to complete a specified task.

SMV Formula

SMV=(Observe time×Rating)+(Observe time×rating)×Allowance

Example

Observe Time: 20 Seconds

Rating: 90%

Allowance: 15%

At fast we need to convert our Observe time Seconds to Minute Observe Time: 20/60=0.33 Min

Now

SMV=(Observe time×Rating)+(Observe time×Rating)×Allowance

=(0.33×90%)+(0.33×90%)×15%

=0.34 SMV

Answer: SMV 0.34

Efficiency Calculation

Profitability depends largely on the efficiency of workers and overall the factory. So this has a great impact on earnings.

Efficiency Formula

Efficiency= 〈Output×SMV〉÷〈Manpower×Working Hour×60〉×100

Example

Output: 2700

SMV: 4.95

Manpower: 25

Working Hours: 11

Now

Efficiency= 〈Output×SMV〉÷〈Manpower×Working Hour×60〉×100

Efficiency= 〈2700×4.95〉÷〈25×11×60〉×100

Efficiency=13365÷16500×100

Efficiency= 81%

Answer: Efficiency 81%

Line Capacity Calculation

The Line capacity refers to the amount of pieces that Line is expected to produce.

Line Capacity Formula

Line Capacity: Manpower×Working Time(Minute)×Target Efficiency÷SMV

Example

Manpower: 25

Working Hours: 11 Hours (11×60)=660 Minute

Target Efficiency: 81%

SMV: 4.95

Now

Line Capacity: Manpower×Working Time(Minute )×Target Efficiency÷SMV

Line Capacity: 25×660×81%÷4.95

Line Capacity: 2700 Pcs

Answer: Line Target/Capacity 2700 Pcs

Operator Capacity Calculation

Operator capacity refers to the amount of pieces that an operator is expected to produce.

Operator Capacity Formula 1

Operator Capacity: 3600 (Working Time in Second)÷Avg Cycle Time In Second + Allowance

Example 1

Average Cycle Time: 42 seconds

Allowance: 15%

Now

Operator Capacity: 3600÷42 Sec+15%

Operator Capacity: 75 Pcs

Answer: Operator Capacity 75 Pcs Only

Operator Capacity Formula 2

Operator Capacity: 60 SMV

Example

Operation SMV: 0.80

Now

Operator Capacity: 60÷0.80

Operator Capacity: 75 Pcs

Answer: Operator Capacity 75 Pcs Only

Line Balancing Calculation

Line Balancing is leveling the workload across all operations in a line to remove bottlenecks and excess capacity.

Line Balancing Formula

Line Balancing: 〈Lowest Capacity(Bottleneck Process)×SMV〉÷〈Manpower×60〉×100

Example

Lowest Capacity: 220 Pcs

SMV: 5.80

Manpower: 25

Now

Line Balancing: 〈Lowest Capacity(Bottleneck Process)×SMV〉÷〈Manpower×60〉×100

Line Balancing:〈220)×5.80〉÷〈25×60〉×100

Line Balancing: 85%

Answer: Line Balancing 85%