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Exakt Advanced Technologies

EXAKT Three Roll Mills Technology

Adaptable & Flexible

The more specific the demand on the function of a material, the more precise and defined its processing must be. In doing so the focus is on a specific, homogeneous particle size and distribution. The process character and equipment layout of EXAKT Three Roll Mills is precisely geared towards this.

The controllable energy input by shearing is decisive. It can be specifically controlled by defined process parameters of EXAKT Three Roll Mills. All models offer a finely adjustable and consistently parallel gap. Combined with the roller speed, this results in a shear rate that can be flexibly adapted to any product.

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Particle Sizes
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Process comparison

Narrow particle distribution due to consistent gap setting

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Shearing
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Shearing in roller gap

The shear gradient between the rollers is determined by the roller spacing and the circumferential speed. Agglomerates and powder nests are broken up and homogenised. The more controlled the energy input, the more precise the processing.



 

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EXAKT DataLog Plus

Analysing with electronically controlled three roll mills

The increasingly diverse applications require ever new formulations of high quality pastes, coatings and inks. Regardless of the particular functional needs, a basic requirement of all matrixes is the elimination of oversized particles of a defined size and a narrow particle size distribution. In particular, the measurement of the particle size is problematic and time consuming in daily practice. However, controlling this parameter in the dispersing process is of utmost importance. 

The process advantages of EXAKT TRM result in the ability to precisely control the shear rate in the de-agglomeration process and the ability to accurately reproduce production settings. A unique feature of our new generation of electronically controlled TRM systems is the possibility to analyse the dispersion process during production.

A detailed process analysis if now possible due to the continuous measurement and recording of the forces, different temperatures, gap settings, power and speed. Based on the real-time on-screen graphical analysis, the dispersing process can be optimized on the run and the production process itself can be perfectly documented and reproduced.