NEUMAN & ESSER

We are NEUMAN & ESSER, a German multinational company founded in 1830, with operations in 11 countries. We have extensive experience in dry grinding and air classification technologies, with a strong focus on lithium carbonate processing, a strategic mineral for the global energy transition.

Our portfolio includes pendulum mills, impact classifier mills, jet mills, air separators, and air classifiers, engineered to achieve the highest standards of fineness, process efficiency, and product quality.

To ensure the required results before equipment acquisition, we operate two industrial-scale Test Centers, located in Brazil and Germany, where we conduct trials using customers' actual materials. This allows us to validate the proposed solution, optimize process parameters, and guarantee the desired product quality, production capacity, and maximum energy efficiency.

In addition, NEUMAN & ESSER is recognized for its integrated solutions across the entire green hydrogen value chain, offering electrolyzers, compressors, and reformers for mining decarbonization and other industrial applications.

Impact Classifier Mill

The classifier mill ICM is used for fine and finest grinding of brittle materials. During impact grinding, the grinding tools throw the feed material into the liner and crush it. Following this, the integrated classifier separates the material. The grinding fineness can be set there flexibly using the classifier’s rotary speed. The classifier rejects particles which are too coarse. The coarse material is returned to the grinding zone for further particle size reduction.

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Jetmill

The fluidized bed jet mill OCX is particularly suitable for dry ultra-fine grinding with a steep particle size distribution in the < 10 µm range. Thanks to the smart combination of a newly designed grinding chamber with utilization of the NEA Jet nozzles in the opposed jet process, and the modular, highly efficient NEUMAN & ESSER classifiers, the OCX jet mill can be used extremely energy-efficiently to produce ultra-fine powders at high throughput rates. The throughputs and finenesses achieved are superior to conventional jet milling technology. Typical applications for the OCX can be found in almost all areas of ultra-fine powder production: Battery Materials & Carbons, Food & Feed, Chemicals & Pigments, and Minerals & Mining.