Mixing Impellers:

Generally speaking, a mixing blade is a blade that fits onto a mixer which runs at low speed up to 3000 rpm;

There are a number of styles for mixing blades depending upon the material being mixed, the speed and horsepower of the mixer, the amount of shear and pumping desired as well as the per cent solids, nature of the solids, viscosity and density. In addition, chemistry such as pH, incompatible ingredients, fluffy additions, hard sinking powders and foaming, play an important role if mixing is to be successful and efficient. All of these factors must be taken into consideration when choosing a blade.

For more detailed information on this subject, please visit the Education & Information section.

For a quote or discussion, complete the IMPELLER BLADE SPECIFICATION FORM.

Metal Mixing Blades:

Type 8: Mixed Flow Impeller

  • Designed for high speed mixing for up to 200 gallons
  • Available in Regular or High Vein
  • More effective than Prop blades
  • Available in 1-7/8” to 8” diameter.

High Pitch Medium Speed Mixing Blade

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Type 9: Multi Fin Pumping Mix Blade

  • Has louvers to provide maximum pumping action
  • Excellent top to bottom flow
  • Lots of surging and air entrainment
  • Available in 2” and larger.

Medium Speed Mixing Blade, high surging

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Type 12: Propeller Blade

  • Common mixing blade
  • Mixes in one direction
  • Limited effectiveness
  • Better options available
  • Right and Left Handed
  • Stainless Steel or Aluminum
  • Blade is heavy in sizes larger than 8”.

Standard Pitch Cast Aluminum or Stainless

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Fabricated Propeller

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Type 13: Axial Flow Turbine

  • Most common slow speed mixing blade
  • Blades setting at 45 degree angle is standard
  • Blades can be set to any angle
  • Multiple blades to be stacked on same shaft
  • Can pump up or down depending on angle
  • Available with split hub for easy installation
  • Bolted or welded blades/fins
  • Available in Stainless Steel, PTFE and Urethane.

Slow Speed Axial Flow Blade Bolted

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Axial Flow Welded Industrial Grade

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Split Hub Axial Flow Blade with Bolted Fins

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Food or Rx Grade, Mirror Finish Available

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Type 14: High Efficiency Turbine

  • Reduces the amp draw
  • Able to spin at higher speeds
  • Works well at slow and high mixing speeds
  • Available with split hub
  • Available in Stainless Steel, PTFE, Nylon and Polypropylene.

Medium Speed High Efficiency Turbine bolted

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Welded design, Medium-High Speed Mixing

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Type 15: Straight Radial Turbine

  • Moves product to the outside only
  • Blades are set at 90 degrees
  • Commonly used at bottom of shaft of Square shaped tank
  • Draws high amps with minimal vertical pumping
  • Split hub available.

Bolted design, Slow Speed Mixing

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, Welded design, Slow Speed Mixing

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Type 16: Curved Radial Turbine

  • Moves product into center and then out to sides
  • High amp draw
  • Good mixing of particles
  • Expensive compared to other types
  • Excellent for sweeping corners of square tanks
  • Split hub available.

Slow Speed Mixing

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Type 17: Collapsible Blade

  • Designed to fit in small bung holes or tote openings
  • As speed increases the fins open up
  • Critical to have enough speed and torque to open fins.

Collapsible Blades for Tote Mixing Bridge Mount

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Medium Speed Collapsible Bung Hole Blade with 2 fins

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Medium Speed Collapsible Bung Hole Blade with 4 Fins

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Type 18: Butterfly Blade

  • Used for mixing high viscosity products
  • Scraper blades can be attached to the blade to scrape sides and bottom of tank
  • Sizes start at 3” and larger.

Slow Speed Butterfly Blade for high viscosity material

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Type 19: Bowtie Blade

  • Designed for mixing high viscosity products
  • More common than Butterfly blade
  • Scrapers can be attached to the blade for scraping bottom and sides of the tank
  • Smallest size 2”.

Slow Speed Bowtie Blade for High Viscosity

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Type 20: TRN Blade

  • Designed for very slow speed mixing
  • Moves fluid in a radial direction
  • Unexpectedly powerful ability to mix low to medium viscosity products and not entrain air
  • Two blades may be required for mixing throughout tank
  • Blades can be welded to shaft or secured with set screw
  • Smallest size is 4”.

Slow Speed Mixing Reduces Air Entrainment

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Type 21: Plunger Blade

  • Used for mixing and scraping material off bottom
  • Material is Zinc-Aluminum Alloy complete with shaft
  • Sizes: 1”, 2”, 3”, 6”, 8” and 12”
  • Largest size to handle 55 gallon drum
  • Economical option.

Medium Speed Plunger Blade For Settled Solids

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Type 22: Paddle blade

  • Designed for slow speed mixing
  • Low cost blade for gentle mixing
  • Radial flow only
  • Can be made with bends to create other directional movement

Slow Speed Paddle Blade

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Type 23: Rushton Impeller

  • Designed for use with gas/gas and gas/liquid
  • Provides radial flow to move material from center outwards
  • Commonly used in reactor tanks, two phase mixing
  • Not efficient for liquid/liquid, liquid/powder, powder/powder
  • Draws high amps per volume
  • Sizing is 1/3 tank diameter.

Slow Speed Mixing for Gas & Liquids

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Type 24: Jiffy Mixing Blade

  • Designed for mixing paint consistency or higher products
  • Made from Carbon or Stainless Steel
  • Easy to attach to hand held electric drill
  • Blades to handle 1-2 gallons up to 10 gallons.

PS1 Mixing Blade for up to 10 gallons. Medium Speed

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PS2 Mixing Blade for 1-2 gallons. Medium Speed Mixing

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Type 26: Helical Blade

  • Very effective for mixing high viscosity materials
  • Blades are custom made to fit vessels
  • Can have scraper blades for sides and bottom
  • Multiple designs in single, dual, triple or quadruple shafts
  • Expensive but effective
  • Difficult to clean
  • Used on machines with motors designed to go in forward and reverse direction to pump down to feed powders and pump up to remove air.

Custom Helicals Style 1

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Custom Helicals Style 2

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Custom Helicals Style 3

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Custom Helicals Style 4

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Custom Helicals Style 5

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Custom Helicals Style 6

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Custom Helicals Style 7

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Custom Helicals Style 8

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Type 27: Anchor Blade

  • Excellent at moving high viscosity material in radial direction
  • Good to keep material moving around the side walls
  • Can have side and bottom scraper blades
  • Available in Stainless or Carbon Steel and PTFE
  • Available in 2” and larger.

Slow Speed Anchor Blade

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Type 29: Pivot Impeller

  • Designed to fit through small openings
  • Not required to open up while rotating
  • Opens as it moves past narrow openings
  • Originally designed for lab, now available in larger sizes.

Type 29L Stainless Pivot for Small Openings

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Type 41: Hobart Style Gate

  • Blade cut-out design allows for more efficient and smoother mixing
  • Provides dependable constant mixing of higher viscosities
  • Made of cast aluminum
  • Also available in urethane and Stainless Steel.

Slow-Medium-Fast Speed Mixing

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Low Shear Mixing Blades for Dispersers:

Type 2 & 2G: High Vane Blade or G Style

  • Pumping blade designed for mixing on high speed disperser
  • Minimal shear and heat
  • Used for mixing and blending
  • Can be combined with dispersing blade to assist moving products to the shear zone.

2G High Speed Low Shear Mixing Blade

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High Speed Low Shear Mixing Blade

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Type 9: Louver Mix Blade

  • Excellent for lifting quick settling materials off bottom
  • Louvers provide maximum pumping
  • Provides excellent top to bottom flow
  • Can be used on mixers or dispersers
  • Good blending and shear for fibrous additives and fillers.

Medium Speed Mixing Blending Blade

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Type 35: LMF Impeller

  • Effective mixing/blending blade on disperser
  • Mixes evenly from top to bottom and side to side
  • Excellent for homogenous mixing with minimal air entrainment.

Medium Speed Mixing Blending Blade

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Polymer Mixing Blades:

Many of the Mixing Blades are available in polymers such as Urethane, Polyethylene, PTFE, Polypropylene and Nylon but not limited to these options. The polyethylene, urethane and ptfe are available in anti-static versions.

Type 10P, Multi Fin, Medium Speed Mixing Blade, High Surging

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Type 12P, Polymer Coated Propeller

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Type 13P, Polyurethane Cast Axial Flow Turbine

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Type 13P, PTFE Axial Flow Turbine with Sheathed Shaft

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Type 14P, Polymer One Piece High Efficiency Blade

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Type 7, Urethane Mxing Blade, 3000 fpm minimum

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Type 41P, Polyurethane Gate Blade

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Metal Dispersing Impellers

There are many different styles of the sawtooth type dispersing blade. Some differences are subtle and may make a difference depending upon the product’s characteristics.

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Polyblade Dispersing Impellers

The Polyblade is far safer than a metal blade, dual sided, lasts longer and handles higher solids and higher viscosities more efficiently.

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Laboratory Impellers

Most of the styles found in both the Mixing and Dispersing sections are available in laboratory size.  Some start as small as 1” while others will be 1.5” or 2.0” depending on the style.

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ACCESSORIES

There are a few accessories for dispersing impellers that are critical for the impellers to run correctly and/or operate safely.

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DESCRIPTIONS

 

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