Press Costing Methods - Feet per Minute
Updated October 24, 2022
Applies to : Sheetfed, Web, Business Forms, Flexo, Digital Press Processes
Typically used for Flexo presses.
There are 2 ways the calculation will work depending on the option set in the Roll Rewind/Wide Format/Other tab
Manual
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Formula : Press Quantity in Feet = (Quantity * (Size Around + Space Around )) / 12 * this should equal the cylinder around value. See Max Up ... feature to automatically calculate these values. |
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(10,000 * ( 6 + 2 )) /12 = 6,667 |
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Formula : Production Time = Press Quantity in Feet / (Feet per Minute *60) |
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6,667 / (1000 * 60) = 6.67 hours |
Calculation specifically for the HP Indigo WS6800
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Formula : ( Size Around + Space Around ) * Number Around = Repeat Length * this should equal the cylinder around value. See Max Up ... feature to automatically calculate these values. |
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( 5 + 0.5 ) * 2 = 5.5 * 7 = 38.5 ( Repeat Length) |
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Formula : (Repeat Length / 12 /((colors) * .5 )) * 60 |
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( 38.5 / 12 / ( 4 *.5 )) * 60 = ( 3.21 / 2 ) * 60 = 1.604 * 60 = 96 feet per minute or 5760 feet per hour |