HP- MA: Automatic pulverizing mill

The solution for automatic sample grinding- Modular design for maximum flexibility in each application

Area of application

Fine grinding of sample material for x-ray fluorescence spectroscopy, diffractometry and other analytical procedures

Different materials, raw meal, clinker, cement, slag, ores, oxidic material, ferroalloys (feed size 5 mm)

Operation mode
Automatic, standalone, standalone with magazine, linear automation, robot automation


Short grinding time – long service life
The HP-MA is suitable for grinding a wide variety of minerals such as cement raw meal, clinker, cement, slag, ores, oxydes and ferro-alloys. The high RPM of the drive motor guarantees a short grinding time even for hard materials. The robust construction with, e.g., dual bearing support for the eccentric shaft ensure long service lives.

Effective avoidance of cross contamination
After pulverizing the grinding vessel is automatically emptied and the ground material is made available at the discharge point. Three automatic cleaning features namely compressed air, sand cleaning (option) and wet cleaning (option) allow a sufficient material removal. Using the different cleaning functions, cross contamination can be reduced to a low ppmlevel. Furthermore, spoon sampling (option) during the material input provides the possibility to pre-contaminate the grinding with the subsequent sample.

Various options, flexible configuration
The HP-MA can be equipped with a dosing system for solid or liquid grinding aids to improve grinding efficiency. Cooling of the grinding vessel, magnetic separator and cleaning device for transport cups are available as options. The HP-MA can be used as a stand-alone machine, with 30 or 60 position magazines, and in combination with the pellet press HP-PA or other components. Due to the modular design of the machine different and completely flexible set-ups for linear or robot automations are possible.


  • Loading magazine (30 or 60 cups)
  • Wet cleaning device
  • Dosing device for solid cleaning aid (sand, granulate)
  • Dosing device for grinding aid (solid or liquid)
  • Cooling device for grinding vessel
  • Blank sample dosing device
  • Cleaning device for transport cups
  • Magnetic separator for extracting metallic particles from the sample
  • Special grinding ring and stone for XRD sample preparation
  • Grinding vessel chrome steel 100 ccm
  • Grinding vessel tungsten carbide 100 ccm