Features:
The grader is a dry type air grading machine, which is equipped with dual airinlet and horizoutally installed grading rotor and being of a centrifugal type. It is strong in wear-resistance. long in service-life, generally applicable to the classification of free-materials.

Substances which are even uneasy to be dispersed in the air obtain coarse and fine powder with optimal clean degree.
It attains a wide grading range. It is selective in a rang of d97=10um. The maximan production capability comes to 8t/h, being widely used in the cement industry.

It can classify different particles either in ball or slice or fibrous shape and being able to separate materials with different densities.
High degree of grading particle d75/d25=1.1-1.5.

high grading efficieney, newton efficiency η=60-90%.
Compact construction. The size of the grading particle diameter is easy to e adjusted. It is also convenient in assembling, operation, maintenance and cleaning. It also occapies a very small area being small in vibration.

Powerful production capability, while operating at d97=10um, the capability can reach 1000kg/h approx. It can unitedly operate with other machinery mill to obtain fine powder.