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Ribbon Blenders
consist of a U-shaped horizontal trough and a specially designed and fabricated
Double Helical Ribbon Shaft rotating within. A ribbon agitator consists of a set
of inner and outer helical ribbons. The outer ribbons move the material from
the ends to the center while the inner ribbons move the material from the center
to ends. This counter-current action causes good blending. The ribbons rotate at
approximately 100 meters per minute and move the materials both radially and
laterally to insure thorough blends in short cycle times. Ribbon agitators are
used for blends that will be between 40% and 100% of the rated capacity of the
blender. An alternate agitator is the paddle design. The paddles are positioned
to move materials in opposing lateral directions and radially. The paddle design
is normally applied where friable materials are being blended and when batches
as small as 25% of the total capacity are going to be mixed in one
blender.
Applications •Ribbon design is suitable
for dry mixing of free flowing powders requiring low shear force. •Paddle
design for dry/wet mixing of dense products. •Ribbon design is appropriate
for low and medium duty applications, while Paddle design is suitable for heavy
duty applications. •Blending large volumes of dry solids. •Dry powder to
wet phase mixing. •Mixing of bulk drugs, chemicals, and cosmetic
powders. •Dry Blending of capsule formulations. •Lubrication of dry
granules in large quantity.
Features •Available in all grades of
Carbon Steel and Stainless Steel. •Less product contact and slow speeds
result in low power consumption. •Simultaneous charging and blending of
materials possible due to stationary trough. •Optional wear resistant liner
plates provided for abrasive products. •Optional Teflon Coated Internals for
Food and Sticky material applications. •Jacketed construction available for
steam and cooling applications. •Can be offered for vacuum
application. •Ribbon and Paddle designs available. •Available in working
capacities of 5 Liters to 25000 Liters.
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