Dispersers and Agitators

NEXGEN™ Vacuum Rotor Stator

Bridging the gap between dispersers and mills: Disper-milling….. Agglomerates don’t stand a chance…

2021 Patented design

This innovative RotorStator design produces an airless ultra-fine dispersion using an aggressive multi-prong approach to particle size reduction.

  • Vacuum: the air inside the agglomerates expands and forces the particles apart exposing maximum particle surface area. Liquid and resin encapsulate each particle for fast and thorough wetting.
  • Controlled Cavitation – The rapid pressure change inside the vacuum chamber creates micro vapor cavities in the liquid. When these short-lived vapor cavities (bubbles) collapse, they generate a shockwave through the feedstock that further aids in particle size reduction.
  • Extreme Shear Zone: The Interlocking ‘H’ Stator Design creates a unique shear pattern of vertical and horizontal slots for ultra-dynamic impact while offering maximum open area for greatest flow. The tight tolerances between the rotor and the stator create a short distance between particle acceleration and point of contact for greatest shattering effect on agglomerates.
  • Dual Pumping Rotor Design – The product is pulled from both the top and bottom of the rotor doubling the number of collisions per particle.
  • High-speed Recirculation: ~300 gpm.  The feedstock is recirculated through the shear zone at high velocity, to maximize the number of passes for every drop
  • Powder Incorporation: Direct incorporation of powder into the liquid stream using an eductor that controls the flow and creates a venturi effect.  This generates suction at the bottom of the funnel pulling powders into the flow. The high-speed jet coming out of the eductor mixes the powder and liquid before it reaches the rotor-stator.
  • The process takes place in a temperature controlled environment, to preserve formulae characteristics and function.  The heat generated by the aggressive shear forces is quickly mitigated by a thorough cooling system covering the chamber and return lines.The result is a deaerated dispersion, a narrow particle size distribution band, volumetric accuracy and an optimal dispersion pre-mix for milling into the nanoparticle size range.Easily hooks up to your existing process tanks.  Flexible, portable design.  Easy cleanup and changeovers.


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At Hockmeyer, we're committed to making your product the highest quality possible, whether you need milling, mixing, dispersion or agitation. Schedule your product to be tested in one of our demo machines and see the Hockmeyer difference for yourself.

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