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 the 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.

Hosokawa Alpine ( offers comminution technology for the production of powders, particles and bulk materials: from mills and classifiers to complete turnkey systems. For R&D and laboratory applications, as well as for industrial production. Tailor-made solutions for powder and particle processing in the chemicals industry, for paints and pigments, mineral raw materials and metals, pharmaceutics and cosmetics, foodstuffs and animal feed, and for industrial recycling.

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