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Total Non-Productive Time Formula

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Non Productive Time is the total time wasted in setting up the machine or workpiece for a particular process. Check FAQs

NPT = N b \cdot t s

NPT - Non Productive Time?N_b - Batch Size?t_s - Setup Time?

Total Non-Productive Time Example

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Here is how the Total Non-Productive Time equation looks like with Values.

Here is how the Total Non-Productive Time equation looks like with Units.

Here is how the Total Non-Productive Time equation looks like.

108 = 2 \cdot 54

108s = 2 \cdot 54s

108 = 2 \cdot 54

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Total Non-Productive Time Solution

Follow our step by step solution on how to calculate Total Non-Productive Time?

FIRST Step Consider the formula

NPT = N b \cdot t s

Next Step Substitute values of Variables

∴

NPT = 2 \cdot 54s

Next Step Prepare to Evaluate

∴

NPT = 2 \cdot 54

LAST Step Evaluate

∴

NPT = 108s

Total Non-Productive Time Formula Elements

Variables

Non Productive Time

Non Productive Time is the total time wasted in setting up the machine or workpiece for a particular process.

Symbol: NPT

Measurement: TimeUnit: s

Note: Value should be greater than 0.

Formulas to find Non Productive Time

Batch Size

Batch Size is the count of similar kinds of products to be manufactured.

Symbol: N_b

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Batch Size

Setup Time

Setup Time of each component is the time required to load/unload the workpiece and position the tool for production for one component.

Symbol: t_s

Measurement: TimeUnit: s

Note: Value should be greater than 0.

Formulas to find Setup Time

Other formulas in Total Production Time category

Go Size of Batch using Total Non-Productive Time

N b = \frac{NPT}{t s}

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

t s = \frac{NPT}{N b}

Go Total Machining Time or Total Machine Time

TMT = N b \cdot t m

Go Size of Batch given Total Machining Time

N b = \frac{TMT}{t m}

How to Evaluate Total Non-Productive Time?

Total Non-Productive Time evaluator uses Non Productive Time = Batch Size*Setup Time to evaluate 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 evaluate Total Non-Productive Time using this online evaluator? To use this online evaluator for Total Non-Productive Time, enter Batch Size (N_b) & Setup Time (t_s) and hit the calculate button.

FAQs on Total Non-Productive Time

What is the formula to find Total Non-Productive Time?

The formula of Total Non-Productive Time is expressed as Non Productive Time = Batch Size*Setup Time. Here is an example- 108 = 2*54.

How to calculate Total Non-Productive Time?

With Batch Size (N_b) & Setup Time (t_s) we can find Total Non-Productive Time using the formula - Non Productive Time = Batch Size*Setup Time.

Can the Total Non-Productive Time be negative?

No, the Total Non-Productive Time, measured in Time cannot be negative.

Which unit is used to measure Total Non-Productive Time?

Total Non-Productive Time is usually measured using the Second[s] for Time. Millisecond[s], Microsecond[s], Nanosecond[s] are the few other units in which Total Non-Productive Time can be measured.

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Total Non-Productive Time Formula

Total Non-Productive Time Example

Total Non-Productive Time Solution

Total Non-Productive Time Formula Elements

Other formulas in Total Production Time category

How to Evaluate Total Non-Productive Time?

FAQs on Total Non-Productive Time

Variable Name