Total Non-Productive Time Calculator

✖Batch Size is the count of similar kinds of products to be manufactured.ⓘ Batch Size [N_b]			+10% -10%
✖Setup Time of each component is the time required to load/unload the workpiece and position the tool for production for one component.ⓘ Setup Time [t_s]			+10% -10%

✖Non-Productive Time is the total time wasted in setting up the machine or workpiece for a particular process.ⓘ Total Non-Productive Time [NPT]

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Formula

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Total Non-Productive Time

Formula

`"NPT" = "N"_{"b"}*"t"_{"s"}`

Example

`"1.8min"="2"*"0.9min"`

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Total Non-Productive Time Solution

STEP 0: Pre-Calculation Summary

Formula Used

Non-Productive Time = Batch Size*Setup Time
NPT = N_b*t_s
This formula uses 3 Variables

Variables Used

Non-Productive Time - (Measured in Second) - Non-Productive Time is the total time wasted in setting up the machine or workpiece for a particular process.
Batch Size - Batch Size is the count of similar kinds of products to be manufactured.
Setup Time - (Measured in Second) - Setup Time of each component is the time required to load/unload the workpiece and position the tool for production for one component.

STEP 1: Convert Input(s) to Base Unit

Batch Size: 2 --> No Conversion Required
Setup Time: 0.9 Minute --> 54 Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

NPT = N_b*t_s --> 2*54

Evaluating ... ...

NPT = 108

STEP 3: Convert Result to Output's Unit

108 Second -->1.8 Minute (Check conversion here)

FINAL ANSWER

1.8 Minute <-- Non-Productive Time

(Calculation completed in 00.004 seconds)

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Credits

Created by Kumar Siddhant

Indian Institute of Information Technology, Design and Manufacturing (IIITDM), Jabalpur

Kumar Siddhant has created this Calculator and 400+ more calculators!

Verified by Parul Keshav

National Institute of Technology (NIT), Srinagar

Parul Keshav has verified this Calculator and 400+ more calculators!

< 9 Total Production Time Calculators

Total Production Time given Time for Individual Operation and Batch Size

Go Total Production Time = (Batch Size*Setup Time+Batch Size*Machining Time+Number of Tools Used*Time to Change One Tool)

Total Production Time

Go Total Production Time = (Total Machining Time+Non-Productive Time+Total Tool Changing Time)

Total Production Time given Total Machining and Operating Cost

Go Total Production Time = Total Machining And Operating Cost/Machining and Operating Rate

Machining Time for one Component using Total Machining Time

Go Machining Time = Total Machining Time/Batch Size

Total Machining Time or Total Machine Time

Go Total Machining Time = Batch Size*Machining Time

Size of Batch given Total Machining Time

Go Batch Size = Total Machining Time/Machining Time

Load or Unload or Setup Time given Total Non-Productive Time

Go Setup Time = Non-Productive Time/Batch Size

Size of Batch using Total Non-Productive Time

Go Batch Size = Non-Productive Time/Setup Time

Total Non-Productive Time

Go Non-Productive Time = Batch Size*Setup Time

Total Non-Productive Time Formula

Non-Productive Time = Batch Size*Setup Time
NPT = N_b*t_s

Why do we need to reduce Non-Productive Time ?

Non-Productive Time is the time actually being consumed in processes that result in no benefit to the Production House. If these processes are optimized, then the time available for actual production increases, resulting in more profit for the day.

How to Calculate Total Non-Productive Time?

Total Non-Productive Time calculator uses Non-Productive Time = Batch Size*Setup Time to calculate the Non-Productive Time, The Total Non-Productive Time is defined as the total time taken to loading/unloading the workpiece and repositioning the tool for the manufacturing of a unit product. Non-Productive Time is denoted by NPT symbol.

How to calculate Total Non-Productive Time using this online calculator? To use this online calculator for Total Non-Productive Time, enter Batch Size (N_b) & Setup Time (t_s) and hit the calculate button. Here is how the Total Non-Productive Time calculation can be explained with given input values -> 0.03 = 2*54.

FAQ

What is Total Non-Productive Time?

The Total Non-Productive Time is defined as the total time taken to loading/unloading the workpiece and repositioning the tool for the manufacturing of a unit product and is represented as NPT = N_b*t_s or Non-Productive Time = Batch Size*Setup Time. Batch Size is the count of similar kinds of products to be manufactured & Setup Time of each component is the time required to load/unload the workpiece and position the tool for production for one component.

How to calculate Total Non-Productive Time?

The Total Non-Productive Time is defined as the total time taken to loading/unloading the workpiece and repositioning the tool for the manufacturing of a unit product is calculated using Non-Productive Time = Batch Size*Setup Time. To calculate Total Non-Productive Time, you need Batch Size (N_b) & Setup Time (t_s). With our tool, you need to enter the respective value for Batch Size & Setup Time and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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