Helical ribbons operate over a wide band of viscosities, ranging from low viscosity liquid to highly viscous materials upto 4,000,000 centipoise because of their ability to generate strong top to bottom motion.

Helical ribbon impellers can be built to fit in conical bottom vessels where the ribbon allows for mixing even at low liquid levels. Helical ribbon mixers work efficiently with heavy pastes as well as flowable powders.

Helical ribbon impeller