Used to reduce hard, friable materials like coal, rocks, ores, and minerals into a fine powder, typically to an analytical size of approximately 75 microns.

Designed specifically for the determination of the relative “hardness” or abrasive potential of coal. Unit is constructed in strict accordance with ASTM Designation D-409 and conforms to procedures proposed by ISO for the determination of the [...]

Used for coarse size reduction of materials, particularly for preparing samples in laboratories and for industrial use, such as reducing coal and coke into smaller pieces for further processing. They are a type of hammer mill that uses impact [...]

Used for grinding coal and coke into fine powder, these bench-type machines are designed for laboratories and industrial settings to prepare coal samples for analysis or research, and they can also be used with other materials for sample prepa [...]

Used to divide or halve dry materials such as cement, gravel, powdered ores, coal, coke, sand, soils, etc. Material poured into the hopper is divided into two equal portions by a series of chutes that discharge the material alternately in oppo [...]

Used for particle size analysis by separating a sample into different size fractions using a combination of horizontal oscillating and vertical tapping motions. It automates the sieving process to provide consistent and repeatable results for [...]

The Preiser Rotary Sample Divider (RSD) provides fast and accurate sub-division of coal, minerals, ash and other granular samples.