general purpose - hm series supermill - designed primarily for discrete pass operation with medium to large grinding media size. this series is available in chamber sizes from 0.75 to 200 liters, with a capacity range fro......general purpose - hm series supermill - designed primarily for discrete pass operation with medium to large grinding media size. this series is available in chamber sizes from 0.75 to 200 liters, with a capacity range from about 1.0 gph to 900 gph on average. the most economical mill selection offered by premier, but has a limited range of applications related to the size of the grinding media required for processing. the hm series can operate well over a wide viscosity range, and is generally used in 1 or 2 pass grinding applications with media size of 0.8mm or larger. there are various options to the hm including stationary front screen, and various materials of construction including plastics, ceramics and composites to suit particular applications. standard type milling discs, or patented ap type high energy milling discs can be used to optimize mill performance. the basic hm design with internal rotating screen has proven to be a "workhorse" in general purpose media milling applications for over a quarter century
