Pengfei HRM type Vertical Mill and PRM type Vertical Mill manufactured by Jiangsu Pengfei Group Co., Ltd is a new equipment developed based on digestion and absorption of foreign technology, and its grinding roller with pressure rolls fillet rolling the material (0-44mm) on the rotating disc for grinding and getting the material with relevant fineness which have the characteristics of high efficient grinding, large drying capacity, adjustable products' fineness, low noise, low power consumption, simple processing flow, little abrasion and low operation cost, etc. With the same processing, same rotating speed and diameter of abrasive disc, same material layer and pressure of grinding roller, grinding efficiency of PR type Vertical Mill could increase over 30%, average energy-saving is about 8.25, so the impaction and vibration of the whole machine will be obviously reduced. Meanwhile the technology of this equipment has reached the international advanced level, manufacturing quality has reached national leading level which has approved by ministerial-level and has been listed as national-level new products in 1995.