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TypeCross SectionCapacities*
mminch (approx.)kg/hlbs/hr
SZS1 630/212 630 x 212 24.8 X 8.4 up to 2,000 up to 4,400
SZS2 300/100 300 x 100  11.8 x 3.9  up to 400 up to 880
SZS2 450/150 450 x 150 17.7 x 5.9  up to 1,200 up to 2,650
SZS2 630/212 630 x 212  24.8 x 8.4  up to 2,000 up to 4,400
SZS2 630/212 II, double channel 630 x 212 x 2  24.8 x 8.4 x 2  up to 3,000 up to 6,600
SZS2 800/270 800 x 270  31.5 x 10.6  up to 4,000 up to 8,800
SZS2 800/270 II, double channel 800 x 270 x 2  31.5 x 10.6 x 2  up to 7,000  up to 15,500
SZS2 1000/340 1,000 x 340 39.4 x 13.4  up to 10,000  up to 22,000

*Depending on type of material and percentage of material to be separated.

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.