#### Mill Speed Control Using Programmable Logic Controllers

We obtain a critical speed of 0,37 Hz. Hence, critical speed in revolutions per minute is: c = n Hz ⋅ = 0,37 60 22,2 rpm In this case, critical speed is 22 rpm. But ball mills usually operate at 65% to 75% of the critical speed. Hence, operating speed is approximate 16 rpm. The mill is usually divided into at least two chambers,

- Published in: international conference on mathematical methods and computational techniques in el.Authors: Claudiu Costea · Helga Silaghi · Marius Silaghi · Paul SilaghiAffiliation: Information Technology UniversityAbout: Electronic speed control · Ball mill · Critical speed · Programmable logic controller · O.Get price