Total Non-Productive Time Solution

STEP 0: Pre-Calculation Summary
Formula Used
Non-Productive Time = Batch Size*Setup Time
NPT = Nb*ts
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 = Nb*ts --> 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)

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!

22 Economics Of Metal-Cutting Operation 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)
Non-Productive Time for Each Component given Average Production Time
Go Setup Time = Average Production Time-(Machining Time+(Number of Tools Used*Time to Change One Tool/Batch Size))
Time for changing one Tool given Average Production Time
Go Time to Change One Tool = (Average Production Time-(Setup Time+Machining Time))*Batch Size/Number of Tools Used
Machining Time of Each Component given Average Production Time
Go Machining Time = Average Production Time-Setup Time-(Number of Tools Used*Time to Change One Tool/Batch Size)
Batch Size given Average Production Time
Go Batch Size = Time to Change One Tool*Number of Tools Used/(Average Production Time-(Setup Time+Machining Time))
Average Production Time of Each Component
Go Average Production Time = Setup Time+Machining Time+(Number of Tools Used*Time to Change One Tool/Batch Size)
Total Production Time
Go Total Production Time = (Total Machining Time+Non-Productive Time+Total Tool Changing Time)
Machining and Operating Rate given Total Machining and Operating Cost
Go Machining and Operating Rate = Total Machining And Operating Cost/Total Production Time
Total Production Time given Total Machining and Operating Cost
Go Total Production Time = Total Machining And Operating Cost/Machining and Operating Rate
Total Machining and Operating Cost
Go Total Machining And Operating Cost = Machining and Operating Rate*Total Production Time
Total Non-Productive Cost
Go Total Production Cost = Non-Productive Time*Machining and Operating Rate
Total Tool-Changing Cost
Go Total Tool Changing Cost = Total Tool Changing Time*Number of Tools Used
Time for Changing one Tool given Total Tool Changing Time
Go Time to Change One Tool = Total Tool Changing Time/Number of Tools Used
Total Tool Changing Time
Go Total Tool Changing Time = Number of Tools Used*Time to Change One Tool
Cost of Tool given Total Cost of Tools
Go Cost of A Tool = Total Cost of Tools Used/Number of Tools Used
Total Cost of Tools Used
Go Total Cost of Tools Used = Number of Tools Used*Cost of A Tool
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 = Nb*ts

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 (Nb) & Setup Time (ts) 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 = Nb*ts 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 (Nb) & Setup Time (ts). 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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