Product Lines:


Mixing & Dispersing


Ystral Dispermix

Ystral Dispermix headThe Ystral Dispermix is used when simple mixing is not sufficient, but dispersing with a high-shear rotor-stator system is too intensive. The Dispermix causes intensive mixing in both the micro and macro range of the product and simultaneously disperses the product completely in one operation. It offers optimum mixing and dispersing energy, high economy of operation and simple handling to fulfill the needs of any demanding production process.

Together with the Dispermix stator, a fast rotating rotor creates two streams directed in different directions. A partial vertical stream is directed to the bottom of the vessel. There it is diverted and causes strong turbulence in the whole vessel. The second partial stream is redirected horizontally and forced to pass through the dispersing zone of the Dispermix head. Turbulence in the Dispermix head and a strong vertical upheaval are mandatory for an optimal mixing of the contents in a vessel. The patented Dispermix head works according to the principle of a rotor-stator-system and causes strong turbulence in the vessel as well as a particle size reduction of solids and agglomerates. For a Dispermix there is no " unfavo rable" design of a vessel. Depending on the situation, the Dispermix may be installed onto a tank from the top, the bottom or as a side entry.

Because of its ability to offer micro- and macro-mixing, the Ystral Dispermix avoids the problems of using a streamlined and optimized stirring element, that provides a slow circulation of the contents of the vessel, but can't provide sufficient micro mixing and using a mixer, that starts to rotate the liquid, but is not able to mix the upper and lower layers of liquid.

Ystral Dispermix micro- and macro-mixing

  • Reduction of production time as no additional shear ring dispersing is required
  • Short, reproducible treating times when adding dry substances
  • Constant standard of quality because of an absolutely lump-free solution
  • Narrow droplet spectrum by a homogenous distribution of the shear energy
  • Independent from any change of the viscosity
  • Reducing cost for raw material as different product qualities may be handled, independent from the dispersing and wetting characteristics
  • Reduction of the amount of emulsifiers because of a better disintegration and dispersion
  • Complete de-agglomeration and suspension

Typical Applications:


  • Emulsions:
    Narrow droplet spectrum, short treating time, saving of additional processing steps (high pressure homogeniser, high shear machine)
  • Pigment suspension:
    Good wetting of pigments, maximum concentration of dry substances
  • Thickener solutions:
    Absolute lump-free solutions, independent from the speed of adding powder
  • Dilution of SLES:
    Dilution of SLES from 70% to 5-28% in a very short time without foaming. Additional processing steps with the same machine to finish the product (e.g. shampoo, ...)
  • Sauces:
    Complete combustion of the powder compounds and simultaneous emulsifying of the liquid
  • Concentrate for drinks:
    Remarkable reduction of required additional processing steps with a high pressure homogenizer
  • Premix for ice cream:
    High concentration of dry substances are treated without any problem. Fat (liquid or blocks) is emulsified completely
  • Wax emulsion or wax dispersion:
    Fast treatment of the wax phase (blocks, pellets, plates, etc.), short homogenising time, reproducible droplet spectrum