Ribbon Blender

Q: Which industries is the Ribbon Blender suitable for?

It is ideal for: Pharmaceutical Industry Biotech Industry Ayurvedic & Herbal Industry Nutraceutical Industry Cosmetic Industry Food Processing and Chemical Industries It excels at mixing powders with varying densities while maintaining product integrity.

Q: What are the key features and benefits of the Ribbon Blender?

Key Features : cGMP-compliant design with SS 304 / SS 316 contact parts Available in capacities from 5L to 25,000L Centrally located flush bottom discharge valve Polished surfaces for easy cleaning Robust worm reduction gearbox and reliable motor Optional: jackets for heating/cooling, vacuum operation, PLC/HMI, and various shaft seals Benefits : Excellent blend uniformity (up to 95%), low power consumption, easy maintenance, versatility, and scalability.

Description

Ribbon Blender is a versatile, low-shear mixing equipment used for blending dry powders, granules, and sometimes liquids or pastes in industries like pharmaceuticals, food, chemicals, and cosmetics. It is designed for gentle, uniform mixing of bulk solids with similar or varying densities, ensuring homogeneity without excessive particle breakdown. The blender’s signature feature is its ribbon-shaped agitator, which moves materials in a counter-current flow to achieve consistent blending. Industrial Ribbon Blender Mixer is an efficient and versatile blending machine for mixing of dry granules & powders homogeneously. Approximately two third of the volume of the container of Ribbon Blender is filled to ensure proper mixing. The Ribbon Blender gives best result for mixing of dry powder & granules due to the design and shape of the mixing ribbon and product container. The outer ribbon displaces the material from the ends to the centre 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.

The Ribbon Blender operates by mechanically agitating materials in a U-shaped trough using the ribbon agitator. The process involves:

Loading: Materials are loaded into the trough, typically filling 40-70% of the capacity to allow proper mixing.

Mixing: The agitator rotates, driven by the motor, creating a dual-flow pattern. The outer ribbon pushes material toward the center, while the inner ribbon moves it toward the ends, ensuring three-dimensional mixing. Mixing time is usually 5-15 minutes, depending on material properties.

Discharge: After achieving homogeneity, the discharge valve opens to release the blended material, often into containers or downstream equipment.

Safety Features: Interlocks prevent operation when the lid is open; overload protection ensures motor safety.

Validation: Involves IQ/OQ/PQ to verify blend uniformity, mixing time, and equipment performance at varying loads.

Cleaning: GMP-compliant designs with polished surfaces and optional CIP systems ensure hygiene, especially in pharma and food industries.

If you need details on specific models and pricing, let me know!

Salient Features of Ribbon Blender

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.
Single Speed Drive.

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.
Blender is mounted on supports providing adequate discharge clearance.
We have shaft sealing options of Mechanical Seal, Gland Packing or Double Mechanical Seal as per requirements.

Working Principle of Ribbon Blender

Material is charged in the blender through nozzles or feed-hoppers mounted on the top cover of the blender. Suppose if screw feeder is opted with mixer, then material to be load onto screw feeder and it will feed powder into blender. Filling to be done about 70 percent of the total volume of the container. This is generally up to the level of the outer ribbon’s tip. After feeding completes then please close the top cover of the blender and tighten the latches. Now start the machine form the control panel.

During the blending operation, the outer ribbons of the agitator interchange the material from the ends to the center while the inner ribbons transfer the material from the center to ends. Radial movement is achieved because of the rotational motion of the ribbons. The difference in the peripheral speeds of the outer and inner ribbons results in axial movement of the material along the horizontal axis of the blender. As a result of the radial and the counter-current axial movement, homogenous blending is achieved in short time. Blending is generally performed in 15 to 20 minutes cycle time. Mixing efficiency of ribbon blender depends upon particle size and its bulk density. Generally, ribbon mixer blender with 95% efficiency in most of the cases. Ingredients with similar particle size and bulk densities tend to mix faster as compared to ingredients with variation in these attributes.

After mixing, material is discharged from a discharge valve located at center bottom of container. The discharge can be fitted with any of these valves like slide-gate, butterfly, flush bottom, spherical and other types depending on the application. The operation of the valves can be manual or pneumatically actuated as per requirements. Sifter can be installed at discharge of the blender for sieving the output materials. Ribbon blenders can be designed for multiple discharge ports. Unlike tumbling blenders where 100% discharge of material is achieved by gravity, in a ribbon blender the material is discharged by rotation of the ribbon agitator. Finished powder can be collected directly on mobile container or can discharge onto conveyor for further operations.

Technical Specification of Ribbon Blender

Model	Gross Volume approx.	Working Volume approx.	Power
RM-10	10 Liters	5 Liters	0.5 H.P.
RM-50	50 Liters	20 Liters	1 H.P.
RM-75	75 Liters	50 Liters	1 H.P.
RM-150	150 Liters	100 Liters	2 H.P.
RM-250	250 Liters	150 Liters	3 H.P.
RM-450	450 Liters	300 Liters	5 H.P.
RM-600	600 Liters	450 Liters	7.5 H.P.
RM-1100	1100 Liters	750 Liters	10 H.P.
RM-1500	1500 Liters	1000 Liters	12.5 H.P.
RM-2000	2000 Liters	1250 Liters	15 H.P.
RM-3000	3000 Liters	1875 Liters	20 H.P.
RM-5000	5000 Liters	3000 Liters	25 H.P.
RM-10000	10000 Liters	6000 Liters	40 H.P.

* Power voltage can be adjusted as per customer’s domestic power voltage requirements.
* Rights of technical improvements & modification reserved.
* Illustrations & dimensions are shown for information purpose only.

Types of Mixer, Blender and Dryer

Multi Mill

Octagonal Blender

Double Cone Blender

V Cone Blender

Ribbon Blender Mixer

Tray Dryer

Vibro Sifter

Rapid Mixer Granulator

Jacketed Mixing Vessel

Heavy Duty Toothpaste Mixer

Applications of Mixer, Blender and Dryer

Advantages of Ribbon Blender

Versatility: Handles a wide range of materials and can incorporate liquids via spray systems.

Uniform Mixing: Achieves high blend uniformity due to the counter-current flow of ribbons.

Scalability: Available in lab-scale to industrial-scale models.

Ease of Cleaning: Smooth, polished surfaces and accessible design comply with GMP standards, reducing contamination risks.

Key Features of Ribbon Blender

Structure: The blender body consists of two conical sections welded to a cylindrical middle, with hermetically sealed apertures for loading, cleaning, and discharge. It rotates perpendicular to the cone axis, promoting even particle distribution without internal baffles in some models.

Mixing Mechanism: Materials are loaded to about 65% capacity, then tumbled end-over-end, creating waves and cross-mixing. Optional intensifier bars or deflector plates break agglomerates, and spray nozzles can add liquids evenly.

Capacity and Scalability: Available from lab-scale (0.25 cu.ft.) to production sizes, handling bulk densities from light powders to dense materials like tungsten carbide.

Customizations: Options include stainless steel construction, heating/cooling jackets, vacuum drying, sanitary finishes, explosion-proof motors, and PLC controls for precision.

FAQ for Ribbon Blender

What is a Ribbon Blender?

A Ribbon Blender is a versatile, low-shear mixing machine used for uniform blending of dry powders, granules, and sometimes semi-viscous liquids or pastes. It features a U-shaped trough with a specially designed ribbon agitator (inner and outer helical ribbons) that creates counter-current flow for fast and homogeneous mixing without damaging fragile particles. It is widely preferred in industries requiring gentle yet thorough blending.

How does the Ribbon Blender work?

Material is loaded into the U-shaped trough (typically 40-70% capacity). The ribbon agitator rotates, with the outer ribbon pushing material towards the center and the inner ribbon moving it towards the ends. This creates radial and axial movement, resulting in excellent three-dimensional mixing. Blending is usually completed in 5-20 minutes depending on the material. After mixing, the product is discharged through a centrally located bottom valve.

What are the available models and capacities?

We offer a wide range of models from lab to production scale:

RM-10: 5 Ltrs working capacity
RM-150: 100 Ltrs working capacity
RM-450: 300 Ltrs working capacity
RM-1500: 1000 Ltrs working capacity
Up to RM-10000: 6000 Ltrs working capacity

Working capacities range from 5 liters to 25,000 liters. Custom sizes are available.

Which industries is the Ribbon Blender suitable for?

It is ideal for:

Pharmaceutical Industry
Biotech Industry
Ayurvedic & Herbal Industry
Nutraceutical Industry
Cosmetic Industry
Food Processing and Chemical Industries

It excels at mixing powders with varying densities while maintaining product integrity.

What are the key features and benefits of the Ribbon Blender?

Key Features:

cGMP-compliant design with SS 304 / SS 316 contact parts
Available in capacities from 5L to 25,000L
Centrally located flush bottom discharge valve
Polished surfaces for easy cleaning
Robust worm reduction gearbox and reliable motor
Optional: jackets for heating/cooling, vacuum operation, PLC/HMI, and various shaft seals

Benefits: Excellent blend uniformity (up to 95%), low power consumption, easy maintenance, versatility, and scalability.

Countries We Export to

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Connect with our engineering team to discuss your specific production requirements. We provide customized, cGMP-compliant machinery solutions designed to optimize your manufacturing facility and maximize output.

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