Stainless Steel Single Piece Blades
Most dispersion blades are formed from a circular disk of material, typically 304 stainless steel. Teeth are formed around the perimeter of the disk by cutting slits into the disk and bending the resulting tabs.
Group 1 (Hockmeyer Style Blades)
Our oldest and most popular styles. Formed from a single piece of stainless steel with different profiles to adjust levels of shear and flow.
Superior for dissolving resins, dispersing fibrous materials and in high vehicle viscosities and/or solids loadings applications. Produces shear but with more turbulence than other designs.
K Style "Clipped"
Similar to the F blade, the K blade features a reduced blade surface. It requires less horsepower and is gerally used in operations where the available horsepower is borderline for the batch size.
Group 2 (Cowles Style Blades)
Originally offered as competitive offsets to those Blades offered by Cowles.
Group 3 (Louvered Blades)
A variation on the disperser blade is the louvered or vented impeller. These are similarly formed from a flat disk of material and may also include teeth. However, inside the flat center area, louvers or vents are formed, by cutting a slot and bending or cupping the material around the slot. These louvers serve to introduce an axial (down along the shaft) component to the flow.
Group 4 (Axial Flow Blades)
While not as efficient as propellers or pitched Blade turbines, these blades provide the most axial flow of any dispersion blade.
The PMP series impellers are designed primarily for blending, mixing, and general agitation. The PMP series blade is designed similar to a fan blade so that your batch is moved around the tank with minimal shear.
Multi Piece Fabricated Blades
Group 5 (Ring Blades)
Another more radical configuration uses a series of annular surfaces or rings to shear material flowing through spaces between them. While previous designs were formed from a single piece of material, these impellers are fabricated from several pieces of material, machined and/or formed to a specific profile, and finally assembled into the finished impeller.
Group 5 (Poly Blades)
In an effort to improve wear, polymer blades were developed. These impellers produce superior wear resistance in certain applications. As forming teeth in these materials is quite difficult, grooves are machined and/or cast into the impeller to provide the pumping and impingement surfaces.