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ISO 9001:2008

Ribbon Blender

Ribbon Blender comprises of a U-shaped horizontal trough and a specially designed Double Helical Ribbon Agitator rotating within. Ribbon Blenders are based on a proven agitator construction that provides a triple mixing action ensuring fast, efficient blending. The dimensions and configuration of the ribbons are carefully balanced to provide a movement of material within the container that avoids dead spots and gives rapid product discharge.

An alternate design is the paddle agitator. The paddles are positioned to move the material in opposing lateral directions as well as radially. The paddle design is generally employed where friable materials are being blended, and when batches as small as 15% of the total capacity are going to be mixed in the blender.

Design Highlights

The outer ribbon displaces the material from the ends to the center while the inner ribbon moves the material from the center to the ends. This counter-current action results in homogenous blending.

The ribbons rotate at approximately 70 - 100 meters per minute and move the material both radially and laterally to ensure thorough blends in short cycle times.

Triple Mixing Action - The Key to Fast, Efficient Blending

As the agitator rotates, the material is tumbled and carried radially around the inside of the blender.

The pitch of the outer ribbon moves the material toward the discharge opening.

The inner ribbon which has an opposing pitch moves the material away from the discharge opening

Standard Features

Available in working capacity of 5 liters - 25,000 liters
Available in all grades of stainless steel, carbon steel and special alloy steels.
Ribbon agitator for center discharge.
Designed for atmospheric operation.
Top cover depending on the length of the blender.
Centrally located Flush bottom discharge valve.
Stuffing boxes with easily disassembled housings. Pure Teflon gland packing provided.
Stainless steel surfaces are polished to desired standards. All exterior non-stainless surfaces are painted with enamel paint.
Squirrel Cage, Three Phase Induction Motors suitable for 415 Volts, 50 Hz.
Worm Reduction Gearbox.
Single Speed Drive.
Blender is mounted on supports providing adequate discharge clearance.

Customized Features

Wear resistant liner plates for abrasive products.
Ribbon agitator for multiple discharge positions.
Manually or pneumatically operated Butterfly Valve, Slide Gate Valve, Diaphragm Valve, etc. for discharge.
Split design stuffing boxes, Air-purging stuffing boxes, Mechanical Seals.
Good Manufacturing Practice (GMP) models.
Explosion-proof motors, Variable Speed Drives along with Electrical Control Panel.
Spraying system for liquid injection.
Lump breakers for solids or agglomerates size reduction.
Vacuum and pressure construction.
Jacket for heating, cooling.
Inspection, cleaning windows on the container, cover.
Cover openings, Nozzles as required.

Ribbon blender- Applications

Infant formula, cocoa mix, instant salad dressing, cake mixes, seasonings, flavorings, gelatin ... the list of food material in which our blender can speed up mix times and provide consistent uniformity, goes on and on. All models can be outfitted with cleaning nozzles to aid in batch changes. A variety of feed and discharge arrangements are possible to tailor to your needs.

Our blenders provide the required uniformity in shorter times which means less dusting and breakage of the ingredients that can cause gastric ulcers in the animals, and bridging of downstream handling equipment. Additionally, by using scrapers or drop bottom discharge, the amount of material left over between batches is minimized, reducing the opportunity for bacterial growth.

Slurries the action within ribbon blenders is vigorous enough to homogenously distribute liquid slurries. Special high speed intensifiers can be added to the bottom to help break lumps that may be present. Proper shaft seal design is critical for handling liquids. Shaft seal choices include: mechanical, packing glands and double mechanical.

Technical Specification

Model Gross Volume Working Volume Power
Litres Litres H.P
RB 10 10 3-5 0.5
RB 50 50 15-20 1
RB 75 75 25-50 1
RB 150 150 70-100 2
RB 250 250 100-150 3
RB 450 450 250-300 5
RB 600 600 350-450 7.5
RB 1100 1100 750 10
RB 1500 1500 1000 12.5
RB 2000 2000 1250 15