The design of a rotor-stator, also known as a rotor-stator homogenizer, consists of a rotating rotor and a stationary stator. The rotor creates a centrifugal force that directs the sample through a small opening in the stator. Shear force is created through turbulence, cavitation, and scissor action. The rotor runs at a high rpm to generate the maximum shear force and is best suited for low viscosity liquids. A homogenizer can emulsify two incompatible liquids, or breakdown solid materials into a liquid media. Within the coating and ink industry, there are limits to the type of pigments that can be dispersed with a rotor-stator. Please consult with your BYK-Gardner representative when considering a rotor-stator for pigment dispersing.
The VMA-Getzmann Dispermat line has two designs – horizontal and vertical. The Dispermat AS has a horizontal design homogenizer chamber. The system itself can be configured as a single pass or a multiple pass system, allowing for fine droplets over a large surface area to be achieved. The “C” technology is available making it ideal for R&D applications. There is a selection from fine to coarse gap rotors. Depending on the industries served our variety of dispersers range from fine to coarse gap rotors.
A homogenizer accessory is available for the Dispermat vertical Laboratory disperser line. The homogenizer can be ordered as an accessory to enhance the capability of a lab disperser. The rotor is attached to a motor shaft and the stator is secured in the same way as the shaft protection pipe with an easy assembly. With the rotor-stator homogenizer, this allows the Dispermat to perform emulsifying, homogenizing, and high shear mixing. The homogenizer accessory is designed for 2 – 5-liter volumes.
The BYK-Gardner Dispersion Team is ready to answer any questions you may have about our products. To speak with a dispersion specialist contact us at (800) 343-7721 or request a catalog.