A wheel with a circumference of 12 inches mounted on a tube mill. The number of revolutions the wheel makes during the tube forming process is electronically compared to the time elapsed and therefore calculates the speed of the mill in feet per minute. This information is used at the end of the welded tube mill to generate cut-to-length signals for the cutoff.
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Stop to notice the technology - by Dan Davis Keeping your nose to the grindstone could prevent you from noticing the rapid changes occurring in the world around you.
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