Zigzag Classifier

A zigzag classifier is a gravity classifier for sharp separations in the range of d97 approx. 0.3 – 10 mm. Widely used in different industries, such as the food industry in the separation of cracked oleiferous seeds, separation of precious metals like copper, aluminum or lead from the insulation material of previously cut cable scrap; dust removal from plastic granules, coke, chalk, fertilizers, bauxite, and so on.

Extremely high, steplessly adjustable precision of the cut

The Zigzag Classifier – MZM and MZF Multi-Plex from Hosokawa Alpine is a gravity classifier for sharp separations in the range d97, approx. 0.3 – 10 mm, with a zigzag geometry of the classifying tube, it comes in two different designs: MZM and MZF. Each design is available in a range of machine sizes from a single-tube to a multi-tube classifier.

Throughputs can range up to approx. 200 t/h for the industrial-scale multi-tube classifier. Classification takes place at every change in direction of the zigzag tube and permits an extremely high, steplessly adjustable precision of cut. The result is clean-cut fines or lightweight material, even under overload conditions.



  • Maintenance-free and wear-resistant
  • Overload-proof
  • Insensitive to changes in the feed material composition
  • Once set, the classifying system can be operated over long periods without any supervision at all