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Grinding and Classifying Systems 

NEA Classifiers for Fine and Superfine Products

The particle size distribution of pulverized materials is a decisive factor for the properties. When manufacturing these materials, a precisely defined particle size is achieved by grinding and subsequent separation by size, the so-called classification. Normally, classification takes place after grinding in a mill. Although classification can be integrated in the mill itself, the use of an external downstream air separator is common practice.

NEUMAN & ESSER has already developed and built air separators since 1931. Based on several decades experience in classifier design, the latest, most efficient NEA classifier technology generation considerably shifts the traditional benchmarks related to particle size, yield and energy efficiency. Therefore, unexpected advantages not deemed possible are generated for the customer, which are expressed in qualitatively higher value products, an increased quantity produced, and reduced costs.

NEA classifiers serve to classify solids by particle size and density but can also be used to separate individual components from a mixture of substances. Based on different solid desities and particle sizes of the product components, the process seperates individual components out of a product mixture.

NEA Classifier: Highly efficient and flexible to use

The latest generation NEA classifiers offer maximum pre-dispersion and harmonized flow conditions over the entire classifying zone. The results are extremely high fine material yields with minimum pressure loss and energy requirements.

NEA classifiers can be used in independent classifying systems and also be combined with many differnet types of grinding systems. Naturally, they can be combined with all NEA mills, but also with ball mills and further mill types. The combination of your mill with NEA classifiers significantly increases the yield and achieves considerably more precise separating cuts.

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