1, the rollers and rings are designed in inverted trapezium, which reduces the slip velocity of the material, prolongs the time for grinding, increases the grinding efficiency.\r\n\r\n2, this machine adopts pressure spring balanced adding pressure, which enables the force point increased 40%. damping can be realized through the resilient joint, which can still avoid resonance.\r\n\r\n3, being equipped with the high density vane of the finer powder collector to increase the powder fineness, under the same rotational speed, the capacity of the final powder.