ResonantAcoustic® Mixing is a new approach to mixing and dispersion of materials ranging from nanoparticle suspensions to viscous gels. It is distinct from conventional impeller agitation found in a planetary mixer or speed mixer as well as ultrasonic mixing. Low frequency, high-intensity acoustic energy is used to create a uniform shear field throughout the entire mixing vessel. The result is rapid fluidization (like a fluidized bed) and dispersion of material. The mixing benefits are applicable to a wide variety of compounds.
ResonantAcoustic® Mixing differs from ultrasonic mixing in that the frequency of acoustic energy is orders of magnitude lower. As a result, the scale of mixing is larger. Unlike impeller agitation, which mixes by inducing bulk flow, the mixing occurs on a microscale throughout the mixing volume. Resodyn Acoustic Mixers, Inc., offers a line of RAM mixers based on the ResonantAcoustic® technology to meet your mixing needs from product development to full-scale manufacturing.
ResonantAcoustic® Mixing introduces acoustic energy into liquids, slurries, powders and pastes. An oscillating mechanical driver creates motion in a mechanical system comprised of engineered plates, eccentric weights and springs. This energy is then acoustically transferred to the material to be mixed. The underlying technology principle is that the system operates at resonance. In this mode, there is a nearly complete exchange of energy between the mass elements and the spring elements in the mechanical system.
In a ResonantAcoustic® mixer, the only element that absorbs energy (apart from some negligible friction losses) is the mix load itself. Thus, the ResonantAcoustic® Mixer provides a highly efficient way of transferring mechanical energy directly into the mixing materials. As an example, a ResonantAcoustic® mixer using 40 HP would require over 770 HP in a non-resonant equipment configuration to mix the same load.