Toner classifiers

Especially designed for classifying toner and pigments.

Hinge-back housing makes the machine easy to clean when changing product

The Toner classifiers TSP and TTSP from Hosokawa Alpine are one- or two-stages ultrafine classifiers that were especially developed for dedusting toner and that have as feature a high precision of cut for optimum coarse products.

The demands made of the end-product quality in toner processing are so high that particle counters (Coulter Counter) are employed for quality control. Specification of the dedusted coarse material is given in number %, whereby the specification generally permits 3-10 number% < 5 µm.

TTSP tandem toner classifier is an improvement of the TSP toner classifier, in the precision of cut; reaching a higher loading factor. This makes it possible to almost treble the throughput in comparison with the TSP.



  • Stainless Steel
  • Designed to be explosion-pressure-shock-proof to 10 bar overpressure
  • Polished Ra 0.8 µm
  • Three-fraction classification for special toner applications. To this end, the classifier is equipped with a special classifying wheel in the 2nd stage, and the classifying system is laid out for the collection of the 3 fractions toner powder, dust and coarse particles