Air Stream Separator (SZS)

Herbold's SZS air stream separators are used for separating particles of almost constant granule size on the basis of their specific weight.  They are used for separating materials that are difficult to separate or cannot be separated at all by screening.


  • Composite materials
  • The plastic component from domestic waste and discarded material
  • Cable recycling
  • Metal and plastic mixtures
  • PVC profile manufacturers and PVC profile recycling companies
  • Granulate de-dusting

How they work:

The material to be separated is fed to the vertically mounted, zigzag shaped separation channel.  An air stream is passed through the zigzag channel.  A turbulence is created at each of the zigzag bends in the separator when the material is being fed.

The process material is picked up by the air stream at these points and separated into two components (e.g. light/heavy. coarse/fine, etc.).  Due to the numerous bends in the unit the best possible separation results can be achieved.

Coarse or heavy material is discharged at the end of the separation stage or from the side outlet of the air stream separator.  The light material or fines are carried by the air stream to the top of the unit where they are discharged.  The required particle size limitation is regulated to suit the type of feed material by adjusting the air quantity control fitted to the unit.

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