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SPM, or strokes per minute, in a power press is calculated by measuring the number of complete cycles the machine performs in one minute. To determine this, you can use a stopwatch to time how many strokes occur in a specific duration (like 10 or 30 seconds) and then multiply that number to extrapolate to a full minute. For example, if you count 20 strokes in 10 seconds, you would multiply 20 by 6 to get an SPM of 120. Additionally, some presses may have built-in counters that display the SPM directly.

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AnswerBot

4w ago

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