ASEPCO Impellers
 Axial Standard |
 Axial Short |
 Rushton |
 Low Shear |
 Foil |
 Tornado |
 Marine |
ASEPCO produces a large array of impeller designs that allow for flexibility of design, giving the best mixing solution for the application. Standard options include foil, rushton, marine, axial, tornado, and low shear. And we also design custom impeller solutions.
Impeller Types for the ASEPCO PolyMixer™
Axial – Standard
Axial impellers consist of four blades at a 45º angle. Half of the flow is discharged axially (parallel to the agitator shaft) and half of the flow radially (perpendicular to the agitator shaft).
Axial impellers have good pumping efficiency and produce high shear effects.
Primary applications: General Mixing, Miscible Liquids, Solid Suspension, Heat Transfer.
Axial – Short
Similar to the standard axial impeller, this version relocates the blades to the bottom of the impeller to work more efficiently in smaller tank applications.
Primary applications: General Mixing, Miscible Liquids, Solid Suspension, Heat Transfer.
Rushton
Sometimes called a flat-blade radial turbine, these impellers have four or more vertical blades, equally spaced around a disk.
The flow is discharged radially (perpendicular to the agitator shaft) with half the flow directed upward, and half the flow directed downward.
Primary applications: Immiscible liquids, Fermentation, Gas Dispersion.
Low Shear
Similar in concept to a marine impeller, this unit has larger flat blades to minimize shear stress in the fluid.
Primary applications: Fermentation.
Foil
Consisting of three blades shaped like aircraft wings, the foil impeller is very efficient when mixing low viscosity fluids. The majority of flow is discharged axially (parallel to the agitator shaft) encouraging good top-to-bottom mixing.
Primary applications: General Mixing, Miscible Liquids, Solid Suspension, Heat Transfer.
Tornado
Primary applications: Powder Addition and Dissolving.
Marine
With a similar configuration to a marine prop, these impellers are more efficient than axial impellers. Consisting of three complex blade forms, they pump the flow axially (parallel to the agitator shaft) and work best in low-viscosity fluids.
Primary applications: General Mixing, Miscible Liquids, Solid Suspension, Heat Transfer.
Special Impeller Solutions
| Double rushton impeller
|
At ASEPCO, we realize that our standard solutions may not always solve your demanding process requirements. For these applications we have the necessary tools to develop custom solutions. Our modular design facilitates the exchange of impeller types, while our custom manufacturing ability allows us to stack and combine impellers.
This specialized impeller solution featured at left is a double rushton impeller design used for fermentation processes. The drive magnets are coupled to a direct-drive motor and mounted to the vessel using a bolted O-ring connection per the customers’ requirements. This design was necessary to achieve the desired mixing time, tip speed, and cell density. To begin designing the perfect solution for your application, please call ASEPCO to speak with a design engineer. |
