Use the Print Run Time Calculator
Understanding Your Results
The Print Run Time Calculator result is an estimating aid for the production question shown above. Interpret the output on the same quantity and waste basis used for the job ticket. Keep makeready, running spoilage, finishing loss and customer overage separate when checking the production plan.
How to Use This Calculator
- Gather the job values for Quantity, Production rate and Setup minutes.
- Keep good quantity, makeready, spoilage and customer overage on clearly separated bases.
- Select Calculate and interpret the output for Print Run Time Calculator.
- Check the output against the intended imposition, finishing route and production allowance before releasing the job.
Formula & Methodology
Estimated run minutes = quantity ÷ average pieces per minute + setup minutes.
Assumptions & Limitations
Use practical sheet yield and a waste basis that does not count the same loss twice. Makeready, running spoilage, finishing loss and customer overage are different quantities.
Worked Example
At 500 pieces per minute, 25,000 pieces require 50 running minutes. With 30 setup minutes, estimated total time is 80 minutes.
Common Mistakes
Use a sustainable average production rate, not a short peak. Keep setup minutes separate so quantity changes affect run time without incorrectly changing fixed setup time.
Frequently Asked Questions
Which inputs have the biggest effect on the Print Run Time Calculator?
Estimated run minutes = quantity ÷ average pieces per minute + setup minutes. The variables named in that relationship are the first values to verify when the result changes unexpectedly.
How should I check this estimate before production?
Use a sustainable average production rate, not a short peak. Keep setup minutes separate so quantity changes affect run time without incorrectly changing fixed setup time. Compare the estimate with one completed job using the same units and quantity basis before turning a recurring variance into a shop standard.
What does the Print Run Time Calculator result represent?
Estimate total print run minutes from quantity, sustainable production rate and fixed setup time. The displayed methodology explains the calculation basis; use the worked example to check that your units and quantity basis match the job.
What should I verify before using this result for production?
Use practical sheet yield and a waste basis that does not count the same loss twice. Makeready, running spoilage, finishing loss and customer overage are different quantities. Confirm the entered measurements against the job ticket, equipment limits or supplier data that apply to your plant.
How should I validate the Print Run Time Calculator on a repeat job?
Close the job using good quantity, makeready sheets, running spoilage, finishing loss and actual run time as separate values. Recalculate on the same basis before changing a production standard.