Belt grinder: motor choice and speed control | All About ...
Nov 29, 2009· I won''t opine about the virtue of variable speed in a belt grinder, but I have very good experience with a VFD in my home shop. My single 3 HP VFD bought from a surplus dealer several decades ago is used to drive a gearedhead drilling machine with integral 3phase motor on which it would have been impossible to change to a DC motor, two lathes, a 26" bandsaw, a bench grinder, a .