1. Footprint is very small because dusts are collected in the material cinvey line.
   
2. Air flows helically in the hopper to separate and collect pellet dusts efficiently.(Batches and crushes can be also processed to some extent.)
   
3. Optimum dust collecting is achieved by matching the shape and size of the top filter to each material.
   

The hopper unit gives helical airflow to supplied resign material and collects fine dusts from it through the air outlet in the top of the hopper.Meanwhile,air fed from the lower part of the hopper raises it in the hopper and dusts are remobed repeatedly.