High Shear Impellers
Mixer Direct has a large selection of high shear mixing blades — also called a Cowles blade — designed to produce an emulsion. A Cowles mixing blade excels at converting the greatest proportion of energy from the motor to shear force. This conversion increases the yield of material to time-consumed ratio. With our bolt-on hub and weld-on hub commercial blade accessories, you can secure your Cowles blade quickly and reliably. At Mixer Direct, you'll find top-quality high shear impellers to make quick work of your mixing processes.Contact Us
Top Reasons for Choosing a Cowles Blade
Why should you fit a Cowles blade to your mixer shaft? Shear, or more specifically, the high shear generated by a Cowles mixer blade is the answer. A Cowles blade is critical for the mixing of certain materials:
- If the materials are prone to clumping
- If you need to wet out powders
- If you want to disperse fine solids
- If you need to emulsify
What Are the Three Grades of High Shear Mixing Blades?
High shear mixing blades from Mixer Direct come in:
- HFD: High flow dispersion blades include vanes for increased pumping and uniform consistency of the material. The geometry of the HFD blades allows them to be used in higher viscosity materials.
- DBL: Dispersion blades are a basic design used in the paint and ink industries for years. Now, other industries are seeing their potential to increase their mixing efficiency.
- USB: Ultra shear dispersion blades use high rotations per minute to shear solids quickly to finer particles and move liquids over the teeth, breaking agglomerations as they flow outward.
What Are Stiffening Plates?
When mixing with high shear dispersion blades, a great deal of stress is introduced, and the addition of a stiffening plate can lessen this. Essentially, a stiffening plate consists of two smaller plates that fit on either side of the Cowles disperser blade. By taking up some of the local stress onto themselves, stiffening plates can increase the life of your high shear dispersion blade.
What's the Difference Between a Cowles Blade and an Impeller?
Essentially, both are impellers — an impeller is a blade attached to a shaft for mixing solids or liquids in a tank. A Cowles blade is a high shear disc-type impeller, but other impellers include low and medium shear types. An example of a low shear impeller is the mixing propeller, while an axial flow turbine is a medium shear impeller.
Discover the Cowles Blade Difference From Mixer Direct
When you need high-shear performance, the Cowles blade delivers. Whether you use HFD, DBL or USB blades in your industry, Mixer Direct is there with the blade you need when you need it. We earn our customers' trust in three ways: we have some of the most extensive product offerings in the industry, we ship almost every item in just a few days, and we inspect the quality of any item you purchase — putting it through final acceptance testing before it goes out our doors. We want you to be 100% satisfied not just with your Cowles blade but also from initial contact with Mixer Direct to final delivery. Contact us today to see the difference a high-quality Cowles blade can make.