Performance Comparison: Vibromixers vs Conventional Stirred Tanks

Vibromixers reach effective mixing at a fraction of the energy a conventional stirred tank needs. This product paper compares the FUNDAMIX® Vibro-Mixer with stirred tanks on the parameters process engineers use to select mixing equipment. Instead of a rotating impeller, a perforated plate with conical bores oscillates at high frequency, creating strong axial recirculation without a shaft seal, baffles or vortex. The paper covers turbulence onset, specific power, mixing time and multiphase performance. Vibromixers become turbulent at Reynolds numbers in the low hundreds rather than above 10,000. Specific power falls from around 8,600 W/m³ for a Rushton turbine to around 510 W/m³ under equivalent conditions. A closing checklist shows where vibratory mixing adds the most value, including shear-sensitive products, sterile or vacuum operation, and processes where downstream separation depends on consistent mixing. The data is supported by an independent 2026 academic review.