The classifier has high weir single screw and twin screw, submerged single screw and double helix four classifier.

The classifier is widely used in mineral processing plant with ball mill with closed cycle flow dividing mineral sand, or used in gravity concentrator to grade ore and fine mud, size classification of ore dressing process and metal, desliming, dehydration and washing operations in. This machine has the characteristics of simple structure, reliable work, convenient operation etc..

Spiral classifier with solid particle of different sizes, different proportion, the principle of settling velocity in liquids of different, fine mineral particles floating in the water overflows, coarse particles sink to the bottom. The spiral to the upper discharge, to carry out the mechanical classifier, can the granularities on the filter, and then the coarse material by spiral plate is screwed into the mill feed inlet, the fine filter out is discharged from the overflow tube.