Sample Preparation Matters

HBF 4000 Automatic Grinding & Milling Machine

Universal sample preparation for spectrochemical analysis: HERZOG automativ grinder and miler for steel and iron samples.

Combined advantages of grinding and milling within in one machine

The HBF 4000 abrasive belt grinding machine permits fully automatic sample preparation for spectral analysis with all its benefits. The method of operation with program-controlled grinding process offers significant improvements in the reproducibility of the sample preparation and thus accurate analysis results in less time and at lower costs.

Shortest machining time with highest precision

The HBF 4000 is characterized by quick and precise grinding and milling of iron and steel samples with widely differing compositions, geometries, harnesses and temperatures. A pneumatic clamping unit allows symmetrical samples with diameters of up to 60 mm to be gripped reliably and in a defined position, thus enabling high grinding capacities and shirt sample preparation times.

Effective grinding

Roughing on the coarse belt grinding offers long service life. The fine grinding of extremely hard samples on the 200 mm wide grinding results in in higher quality, longer service life and lower abrasive costs. The width of the grinding belt enables different samples to be fine ground on several tracks – this reduces cutting material costs and time due to reduced grinding belt consumption and replacement. Pre-selectable grinding belt zones prevent cross-contamination of the samples during the preparation of different sample qualities.

On steels with very low carbon contents, abrasives can leave residues in the form of minute carbon particles which lead to falsified and useless analysis results. For these samples, use of the miller instead of fine grinding after coarse grinding is therefore the right decision. Finish cutting of steel samples with low carbon contents using the milling cutter guarantees precise analysis results for evaluation. The HBF 4000 with its integration of the different machining methods, “grinding belt” or “milling cutter” for fine machining, ensures optimum sample preparation for the analytical requirements for samples with all degrees of hardness and alloys. The HBF 4000 also allows the grinding belt and milling cutter to be used not only in combination but also for separate grinding and milling operations.

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