One of the questions our customers ask most frequently is, “How often do I need to have my machine inspected for alignment?” Unfortunately, there isn’t a simple answer. There are a number of factors that can affect the alignment of equipment and these should be taken into consideration when creating a machine alignment inspection plan for a facility. I will discuss the top three factors that can determine the need for alignment inspections, and the reasons why there are no set rules that can be applied.

Type of machine

Alignment inspection intervals can vary from machine to machine. For a typical paper machine that runs continually at standard operating speeds, alignment condition inspections should occur every 12 to 18 months, with sampling inspections conducted in each of the major sections: wet end, press, dryers, calender, and reel.

However, in today’s competitive environment, the majority of paper manufacturers are running up against their speed thresholds to maximize production. This practice significantly shortens the alignment inspection intervals—often from 6 to 9 months.

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