ارتعاش آسیاب - eyfhr.eu. ارتعاش آسیاب غلتکی - travelwisata.asia. ارتعاش آسیاب غلتکی Vibration Analysis of a Vertical Roller Mill:, In this paper, vibration characteristics of a Vertical Roller Mill (VRM) are studied by using physical parameters of an operating VRM The mathematical model is.