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Blade
Definitions
Offering
a Wider Variety of Blades for Both Dispersion and Mixing
Applications.
Blades:
Types 1-4 |
Types 5-8 |
Types 9-12 |
Types 13-16 |
Types 17-27 |
Stiffening Plates |
| Blade Types 1-4. Click
here to view these Blade types.
Type 1: Angled
Tooth Blade or Cowles Style
Popular blade for dispersion work. Primarily a high shear blade. There are newer technologies that provide more pumping with shear. Efficient design which has proven to be an excellent blade for shear. Stock sizes from 1" and larger. We recommend sizes of 1.5" and larger.
Type 2:
High Vane Blade or G Style
High pumping action. This blade
is for mixing on a high speed disperser with minimal shear
and heat build-up. This blade is popular in the mixing and let down of coatings.
It is available in sizes from 2" and up.
Type 3:
Combination Blade or E Style
This blade offers a combination
of high shear along with excellent batch movement and cutting
of high viscosity materials. It is excellent for high solids
as well. Available
in sizes from 2" and up.
Type 4: Aggressive
Tooth Blade or K Style
This blade works well on materials
difficult to de-agglomerate. It is available in sizes from
2" and up.
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Blade Types 5-8.
Click here to
view these Blade types.
Type 5: Pick Blade
This blade is perfect for
cutting in or shredding rubber, a wax and other soft materials
that tend to gum up on standard impellers. Unique design features a knife (or pick)
extending out from the blade, alternating with vertical
teeth. This blade is available in sizes from
2" and up.
Type
6: Rectangular
Tooth Blade or Hockmeyer Style
This is another popular all
around blade for high speed dispersion applications. The
rectangular tooth pattern does not disperse any differently
from the Type 1 style. However, the extra meat on the
tooth can make the tooth of this blade more resilient
in certain applications.
Type 7: The Polyblade® - Norblade®
Polymer Impeller
The Norblade impeller is the answer
to the negative issues which are inherent in metal blades
when dispersing certain types of slurries.
It is constructed from a wide variety of polymers
depending upon the application:
-
Polyurethane
for maximum abrasion resistance in a non-solvent slurry;
-
Anti-static
polyethylene for solvent slurries;
-
PTFE for
high temperature slurries;
-
Nylon for
chemical resistance;
-
Polypropylene
for FDA and Pharmaceutical applications
-
Available
sizes range from 1-34" and up
Features of the Polyblade: Abrasion Resistance; Safety; Low Heat; Low Maintenance;
No metal contamination; Won't Bend or Deform; High Value. This
unique design improves production time by efficiently pumping
the material so that the slurry sees the shear zone of the
blade more frequently than with any other style of blade.
The batch will run cooler. Light weight materials
are more easily incorporated. Heavy settling material is
lifted off the bottom. This blade cannot be put on backwards. Best of all this blade
never gets sharp and so a hazard is removed from the plant
or lab.
Type 7EP POLYBLADE with Embedded Plate
The POLYBLADE is now available with a dynamically balanced
metal plate embedded in the center to eliminate the need for stiffening
plates that are not balanced. The blade now has NO exposed metal parts and
is a one piece assembly which is especially helpful in confined space entry
situations.
Type 7SPUP TURBO POLYBLADE with Shear Pegs
Standard POLYBLADE in polyurethane with replaceable shear
pegs molded into each side of the blade for more aggressive dispersing and
lower amp draw. This blade will equal or improve upon the performance of a
metal blade and remove a safety hazard from the plant since it never gets
sharp. This blade will outlast a metal blade far beyond the price
difference.
Type 7SPAS: Anti-Static Turbo Polyblade
This is the Turbo Polyblade designed for use with solvents.
Outer stiffening plates must be used.
Click here
for complete Polyblade information.
Type 8: Mixed
Flow Impeller
A very popular impeller
for high speed mixing up to 200 gallons assuring that
material is mixed in all directions. Available in
regular and high vein with or without collar and set screw.
This blade is more effective than a standard 3 bladed
prop. The blade should be sized to be 1/3-1/2 the
diameter of the tank.
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Blade Types 9-12 . Click
here to view these Blade types.
Type 9:
IT
The louvers formed in the plain
of the blade provide maximum pumping action giving positive
over all material movement with excellent top to bottom
flow. They
are excellent for lifting quick settling materials off the
bottom of a tank in medium to high viscosity materials.
The IT is for agitation; positive but gentle material
flow; low shear, smooth fast mixing without air inclusion.
Type 10:
ITC
The louvers formed in the plain
of the blade provide maximum pumping action giving positive
over all material movement with excellent top to bottom flow.
They are excellent for lifting quick settling materials
off the bottom of a tank in medium to high viscosity materials.
The ITC is for shear and agitation. Positive material
movement; good blending and shear for the more fibrous additives
and fillers.
Type 11: ITT
The louvers formed in the plain
of the blade provide maximum pumping action giving positive
over all material movement with excellent top to bottom
flow. They
are excellent for lifting quick settling materials off the
bottom of a tank in medium to high viscosity materials.
The ITT is for high shear and agitation.
High positive material movement. Recommended where
high shear is required for a rapid and smooth blend or when
high shear is not required but is not detrimental. Blade
should be 1/2 - 1 full diameter of the bottom of the tank
with at least twice as much above the blade or it will suck
in air. Tip speed should be 3500 - 4000 fpm. Blade should
be 1/3 the tank diameter for medium viscosity and 1/2 the
tank diameter for high viscosity.
Rules for the ITT blade are as follows:
- 1/2 - 1 full blade diameter
off bottom with 1.5 – 2 blade diameters of fluid
above the blade
- 3500-4000 fpm tip speed
- blade size should be 1/3 diameter
of tank for standard materials, high viscosity can take
up to 50% the diameter of tank
Type 12: Propeller
This is a very common mixing blade
similar to a boat prop which mixes material in one direction.
It is a standard used in most applications. However,
there are many blades styles currently available which are
superior to this technology. They have limited reach. They get very
heavy as they get larger.
The left handed design is good for de-aeration.
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Blade Types
13-16. Click
here to view these Blade types.
Type 13: Standard Axial
Flow Turbine
This is the most common slow speed
mixing blade. The arms of the blade are usually set at a
45 degree angle. Several blades can be stacked on one shaft
so that this blade works well in a tall tank. The blade pushes
product down and then out creating a rolling action. It
can be designed to pump up.
It is relatively inexpensive. A Split Hub Design
is available.
Type 14: High
Efficiency Axial Flow Turbine
This is one of the newer designs
in mixing blades. It has a similar action to Standard Axial
Flow but uses less energy.
It is higher price but works well at slow and high
mixing speeds in viscosities less than 1000 cps. A Split Hub Design is available.
Type 15: Straight Radial Turbine
This blade moves product
to the outside only. The arms of the blade are set at 90 degrees.
This style is commonly used at the bottom of the shaft of
a square shaped tank. It draws a lot of power and does not
move product efficiently. A Split Hub Design is available.
Type 16: Curved Radial Turbine
This blade moves the product
into the center and then pushes it out to the sides with an
aggressive whipping action.
It has a high amp draw and provide good mixing of particles.
The blade can be expensive compared to other types but is
excellent for sweeping corners of a square tank. A Split Hub Design is available.
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Blade Types 17-20.
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view these Blade types.
Type 17: Bung Hole Blade
This blade is designed to fit
through the bung hole in a closed head drum. As the shaft spins the end pieces open up into the shape of
an axial flow blade.
It is critical that the shaft speed and horsepower
can move the blade fast enough to open up.
This blade attaches to the shaft with collar and
set screw.
Type 18A: Butterfly Blade
This blade is used for mixing
high viscosity materials.
A scraper blade can be attached to the blade for scraping
the side or bottom of a tank.
Type 18B: Lab version of Type 18A
Type 19: Bowtie Blade
This blade is another style
which is used for mixing high viscosity materials.
Type 20: TRN Blade
This blade is a new style of mixing
blade. Although
it looks simple, this blade has an unexpectedly powerful
ability to mix low to medium viscosity materials. This blade runs at low tip speeds. Two blades may need to be required to ensure that product at the bottom is incorporated into the batch.
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Blade Types 21-24. Click here to
view these Blade types.
Type 21: Plunger
Blade
This blade is used for mixing.
Material of construction is Zinc-Aluminum Alloy complete
with shaft. Sizes available are 1', 2", 3', 6",
8" and 12". This blade is very economical.
Type 22: NorAx-W, Axial Flow
Blade
High Speed axial flow blade
for abrasive products, high viscosity products and products
requiring non-metal. This blade is also good for containers
that need to have the bottom scraped since the turbines
extend below the hub permitting the bottom to be scraped.
Type 23: Bung Hole Blade
This
blade is another style of bung hole blade that provides
radial and axial flow. It has a serrated bottom to scrape if necessary.
Type 24: Banana Blade
Also
known as "banana" style blade, this blade is used
for mixing inside of flasks and other long neck type bottles. |
Blade Types 25-35, additional products, mixing blade assembly specifications. Click
here to view these Blade types and information.
Type 25: D Blade, Multi Layer
Ring Style
Also known as Ring Blade, this
blade consists of three plates welded together with "cutting
teeth" in between. Provides excellent shear using
the Venturi principal. Requires a 6000 fpm tip speed.
Trial sizes available.
Rules for the Hockmeyer D
blade:
-
1/2 - 1
full blade diameter off bottom with minimum of 2 blade
diameters of fluid above the blade.
-
5800 fpm
+/-5% tip speed
-
Blade size
should be 1/4 diameter of tank for standard materials,
high viscosity can take up to 40% the diameter of tank.
-
Viscosity
Range: 1000 CPS to 10,000 CPS. We have used the
D blade up to 50,000 CPS and lower than 1000 CPS depending
upon specific gravity.
Type 26: Cement Mixer Blade
Also known as "coverings"
blade, this blade is used mostly with hand held mixers
for stirring heavier products such as flooring compounds,
cement, ceramic and caulks.
Type 27: Anchor Blade
The anchor blade can be used
as shown or have additional vertical resistant bars to
be made into what is called a gate blade. This blade is
excellent for moving high viscosity material in a radial
direction and also good for keeping the outer limits of
the batch in motion.
Type 28: CSI Ring
Blade
Also known as Ring
Blade, this blade consists of three plates welded together
with "cutting teeth" in between. Provides excellent
shear using the Venturi principal. Can be difficult to clean
and difficult to determine when worn. It is also very expensive
but still very effective.
Type 36 Disk Turbine (Rushton style)
This blade is primarily used for mixing gases or gases with liquids.
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