More than the sum of its parts

System competence increases plant efficiency.

The whole is more than the sum of its parts, and this also applies to grinding and size reduction.

A high level of efficiency and safety can only be achieved by optimally coordinating feeding, grinding, and aspiration while maintaining very high product quality at the same time. For this purpose, Tietjen offers grinding systems as a complete solution, from the uncrushed raw material to the crushed re-grind.

If more is needed than the size reduction itself, Tietjen is available with its competence in plant engineering, screening and classifying technology, bulk material handling and explosion protection (ATEX).

For added efficiency we also offer the online particle size controller (OPC), which monitors the particle size during the grinding process.


Grinding module


Aspirating a mill and removing the ground product are almost as important as the grinding itself. Your hammer mill will only achieve maximum performance if the whole system is optimally designed. Let us design your grinding module for you.



Plant engineering

Every design and plant is unique. We analyse our customers’ requirements with regard to the desired grinding result, structural conditions and process specifications.

Dust explosion protection

Dust explosion protection measures are essential for industrial companies today. We have contributed to making grinding systems safer today thanks to many years of research and further development of safety systems.

Online particle size controller OPC

The Online Particle Size Controller OPC is a measuring device for the continuous determination of the particle size of free-flowing bulk materials of all kinds.


Sifting & screening


Save energy with optimal screening solutions. Tietjen integrates the appropriate screening solution into your grinding system.

  • Plansifter
  • Windsifter
  • Tumble screen

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