VFD SFPM Calculator
To calculate speed with a Variable Speed Controller enter the fastest spindle speed RPM, the wheel diameter, and the selected drive percentage.
RPM		Wheel Diameter
Drive %
Spindle RPM	Spindle RPM	SFPM	M/Sec
%	Spindle RPM	SFPM	M/Sec
100
90
80
70
60
50
40
30
20
10
0
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