CFS Ultra-Fine Classifier

Classifying Fine Powder

General

When a screening machine cannot be used to separate fine powder due to the desired final fineness or other product characteristics, our "standard" ultra-fine classifier, CFS, can.

The best results and yields are achieved regardless of whether you are separating coarse fractions (grit) or classifying fines (dedusting).

The limitless adjustment of the classifier wheel separates the particle sizes. 

The optimized classifier wheel design guarantees that very high finenesses can be achieved with only one classifier wheel, even with high throughputs.

The user friendly machine housing allows the machine to be thoroughly cleaned, fast, when product or batches are changed.

Technique

  • Finenesses from d97 10 µm to d97 250 µm (based on limestone)
  • Air classifier with vertical shaft
  • Vortex free fines outlet with expansion chamber to reduce circumferential speed and wear as well as product buildup in the outlet
  • Classifier wheel with exchangeable, simultaneously rotating immersion tube to achieve highest finenesses, unlimited adjustment
  • Gap between classifier wheel and fines outlet rinsed by gas for highest possible prevention of oversize particles in the fine fraction.
  • Classifier shaft seal rinsed by compressed gas to protect the bearings
  • Conically shaped bottom, with vertical coarse particle outlet
  • Bearing of the classifier shaft is permanently grease sealed or oil lubricated for hot gas applications
  • Extremely sharp separation due to optimized classifier wheel design
  • Highest finenesses and maximum throughput achievable with just one classifier wheel
  • Even product load on the classifier wheel through rotationally symmetrical design of the machine
  • Hinged classifier head provides very good access for fast, easy cleaning and maintenance
  • Reproducible results
  • Optional designs available: pressure shock resistant, gas tight, wear protected
Function principle of the sharp separating CFS Ultra-Fine Classifier

Applications

Ores / Minerals / Metals

 

Pigments / Dyes

 

Ceramics / Glass

Adhesives / Sealants

 

Cellulose / Pulp

finest metal powder for a number of applications

Literature

Brochure

Brochure

The NETZSCH Fine Classifier CFS is used for classifying of fine powder when a screening machine cannot be used becaus of the desired separation limit.

Application literature

Your Inquiry

Please click the button to contact our sales people and ask for more information.

You may also be interested in:

CFS 5 and CFS 8 Fine Classifiers

Efficient separation of grain sizes and effective results for both coarse material and fine material separation.

For separation limits from 10 to 250 µm (d97).

Machine sizes with gas volume of approximately 25 to 145 Nm³/h.

ConJet® High-Density Bed Jet Mill

The ConJet® high-density bed jet mill is a spiral jet mill combined with a patented dynamic air classifier. This classifier enables the ConJet® to achieve highest finenesses independent of the product load, and therefore also highest throughput rates. Applicable for finenesses from 2.5 to 70 µm (d97).

Machine sizes available for grinding air volumes from approx. 50 to 2,400 Nm³/h.

InlineStar High-performance Fine Classifier

This newest fine classifier was conceived to combine with an upstream mill. The direct integration of the InlineStar classifier behind a mill creates a continuous grinding/classifying plant that reduces the number of required plant components.

Available for separation limits from 2.5 to 60 µm (d97).

Machine sizes available for gas volume from approximately 350 to 2.600 Nm³/h.

CGS Fluidized Bed Jet Mill

The combination of an air jet mill and a dynamic air classifier represent fine dry grinding in perfection. The highest of final finenesses with an exact maximum particle size limitation become reproducible. The development of the new e-Jet® and s-Jet® grinding methods constantly yields new, interesting areas of application, both economically and technically. Applicable for finenesses from 1 to 70 µm (d97).

Machine sizes available for grinding air volumes from approx. 50 to 12,000 Nm³/h.