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TSP and TTSP Toner Classifiers

The Alpine TSP and TTSP Toner Classifiers were developed especially for dedusting toner. One or two stage ultrafine classifier with a high precision of cut for optimum coarse products. Specially designed for classifying toner and pigments, e.g. minimisation of the ultrafine portion <2 – 5 µm.

  • Hinge-back housing makes the machine easy to clean when changing the product.
  • Classifying wheel(s) arranged vertically

 

Product Information

The Alpine TSP and TTSP Toner Classifiers were developed especially for dedusting toner.

TSP and TTSP Toner Classifiers

The feed material is dispersed by the classifying wheel and transported through the same by the classifying air and the dust entrained in the air is transported through the support wheel and discharged via the fines discharge. The coarse product is rejected by the classifying wheel and conveyed to the coarse material discharge. The product routing is designed such that no back-mixing can occur and a high quality of dust removal is ensured. The special configuration with the support wheel is patented and it permits optimum access for quick and thorough cleaning with minimum downtime.

Protected by additional patents, the TTSP tandem toner classifier is a refinement of the TSP toner classifier, primarily with the aim of improving the precision of cut even further by means of two consecutive classifying stages. At the same product loading of the classifying air, the tandem toner classifier achieves a much higher precision of cut than the TSP, or at a constant coarse product quality, achieves a higher loading factor. This makes it possible to almost treble the throughput in comparison with the TSP.

TSP and TTSP Toner Classifiers Specifications

Because of the dust explosion hazard associated with processing toner, the classifiers are designed to be explosion-pressure-shock-proof to 10 bar overpressure. Every machine is available with a type test certificate as defined in the ATEX Directive 94/9/EC. Tandem toner classifiers hinge open hydraulically. Different toner classifier designs are available to suit different customer requirements:

  • Stainless steel
  • 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.
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