Dispersion Blade Designs

Most dispersion blade 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 th resulting tabs.

Group 1 (Standard 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.

F Blade "Sawtooth" F Sawtooth Impeller

Uniform teeth accelerate pigment particles and breakup agglomerates. High shear is quickly achieved with turbulent flow.

G Blade "Pumper"G Style

High-vaned "Pumper" blade is designed for maximum turbulent flow.

E Blade "Cutter"E Blade
Superior for dissolving resins,high vehicle viscosities and/or solids loadings. Produces shear but with more turbulence than other designs.

 

Group 2 (Alternate Blades) - Originally offered as competitive offsets to our standard blades. These impellers have gained favor with some customers.

K Style "Clipped"

K Style BladeRequires less horsepower and is applicable in operations where the available horsepower is borderline for the batch size.

H Style "Hi Vane"

H - High VaneAnother excellent high flow, low shear impeller. Great for blending and agitation.

I Style"Pick"I Pick Blade

High viscosities / high solids impeller, produces shear with increased turbulence.

 

These blades represent the earliest and most polular of the dispersion blade styles.

 

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 inlcude 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 3 (Louvered Blades) - Louvered or vented impellers offer an axial component to the flow.

R - "ITT" Intensive Type with Teeth Conn ITT

The Conn ITT provides high shear and agitation; Good combination of material movement shear.

Conn ITQ - "IT" Intensive Type Blade

The Conn IT produces positive but gentle material flow; Low shear smooth fast mixing without air inclusion.

S Blade "ITC"Conn ITC Intensive Type Cutter

The Conn ITC has large pitched teeth on the periphery instead of louvers providing a high degree of pumping.

 

 

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 4 (Ring Blades) - multiple rings provide greater shear than the other blade designs.

C - "CSI"C Style - Constant Shear Impeller Constant Shear Impeller

Product accelerates through a series of rings machined to produce venturi. Yields very fine grinds with laminar flow and less heat build-up.

D - "Ring"D - Ring Blade Blade

Product passes through a series of curved rings to produce fine grinds, laminar flow, and low heat.

 

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.

 

Group 5 (Poly Blades) - designed to produce greater wear resistance than the standard stainless steel designs

P Type "Polyblade" Poly Blade

Manufactured from Ultra-High Molecular Weight Polyethylene (UHMP) for superior wear.  Effective in highly abrasive applications with no metal contamination.

O - Conn "Poly-ITT" Poly ITT

UHMW version of the ITT. Good combination of material movement and shear.

N - Norstone"Urethane"Norstone Blade Impeller

Urethane blade provides excellent wear resistance.

 


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