Low-dust milling using GMP conforming roller mills
The department "Particle technology" of NEUHAUS NEOTEC Maschinen- und Anlagenbau GmbH has improved the well-established laboratory grinder LWM 100 for the most demanding applications in the pharmaceutical and chemical industry as well as in the food industry.The new design
with drive system and control elements housed together in one stainless steel
case allows quick and easy cleaning. All product-contacting parts are designed
in stainless steel 1.4404 (316 L) with a surface
quality of < 0.8 µm.
The roller mill process is superior to any other milling
process if low-dust grinding with a narrow particle size distribution is to be
achieved. This is of great importance for example for grinding of flakes
compacted by rollers as the improved flow properties of the granules
considerably increase the efficiency of the downstream tablettising presses. Applications and examples:
- Grinding of flakes of organic and inorganic products compacted by rollers with a content of less than 10% < 100 µm
- High yields of e.g. > 90 % in the range of 100 and 500 µm
- Grinding without temperature increase due to quasi individual grain crushing
- Crushing of agglomerates and granulates
- Reproducible grinding results
Design characteristics:
- Continuous adjustment of the roller speed and the grinding gap
- Use of stainless steel rollers in smooth and/or corrugated design
- Designed as 1 or up to 4 stage grinder for highest flexibility
- Capacity of 100 g up to approx. 500 kg/h depending on the requirements
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