Nano mill Zeta® RS

Innovation in Wet Grinding Technology

The nano mill Zeta® RS is the next development of the worldwide known circulation mill system Zeta® type LMZ. Its field of application starts where the other agitator bead mill system Zeta® ends. The highly efficient centrifugal separation system enables the use of smallest grinding media from a diameter of 30 – 300 µm in reliable continuous operation. It is specially designed for wet grinding and dispersing processes especially "gentle dispersing" in the nanometer range. Working with the machines is a pleasure due to its easy operation. 

The agitator bead mill Zeta® RS is equipped with a swiveling grinding unit and lifting device with multiple positions for easy emptying, filling and cleaning and a horizontal working position.



  • Fives sizes with 2 l, 4 l, 10 l, 25 l and 60 l grinding chamber volume
  • Peg grinding system with small length/diameter portion
  • ATEX-conform design in ergonomic design
  • Highly efficient dynamic centrifugal separation system
  • Use of smallest grinding media from 50 to 300 µm
  • Integrated grinding media collecting tray for loss-free emptying
  • Easy handling due to swiveling and carriage-type grinding chamber
  • Control of the mill drive and feeding pump via frequency inverter
  • Flow meter to control the product flow
  • Pressure control by contact manometer
  • Measurement of the product inlet and outlet temperature, optionally also available for cooling water temperature
  • Flow measurement of the chamber cooling
  • Grinding chamber design of stainless steel as standard. Wear and corrosion resistant designs for metal free processing are available in the materials NETZSCH-Ceram C / NETZSCH-Ceram N, NETZSCH-Ceram Z, NElast

The machines of the Zeta® RS series are used for gentle dispersing as well as real comminution of various products such as pigments, inkjet, MLCC, functional coatings, nano ceramics, cosmetics and personal care, and many more.

Focus on your Benefits

  • Compact design for minimum space requirement∙
  • Easy handling with swiveling grinding unit and sliding grinding tank∙
  • Prevention of grinding media loss, very easy cleaning and ease of use∙
  • Reliable use of micro grinding beads in the range of 30 μm - 300 μm∙
  • No screen blockage thanks to the ODC/SDC separation system ∙
  • Variety of materials available for grinding systems (can be interchanged)∙
  • Large selection of grinding chamber materials (can be combined)
Nano mill ZETA_RS – innovative machine technology with ergonomic design for real comminution, dispersing and disintegration down to the nanometer range


During development of the Zeta® RS machine series, special emphasis was placed on ease of use. Filling and emptying as well as servicing and cleaning the machine are easily accomplished without the loss of grinding media. ∙

  • Positionable grinding tank∙
  • Integrated, removable grinding media collection tray∙
  • For even greater usability, an optional swivel-mounted grinding chamber is available for models Alpha®® lab Zeta® RS to Zeta® RS 10

Filling Position

Filling Position ZETA RS10

Operating Position

Operating Position ZETA RS10

Emptying and Cleaning Position

Emptying and Cleaning Position Zeta RS 10




The machines of the Zeta® RS series are used for gentle dispersing as well as real comminution of various products such as pigments, inkjet, MLCC, functional coatings, nano ceramics, cosmetics and personal care, and many more.

Application literature

Application literature

With this technique it is possible to maintain the chemical integrity and structure of submicron particles even through the grinding and dispersion processes.

Application literature

Due to the possibility to achieve higher product homogeneity, strength or solubility and thus higher product qualities by the use of submicron particles the versatility of fields of applications is continuously increasing.

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