Horizontal Ribbon Blender Mixer, also known as a ribbon mixer or ribbon blender, is an industrial machine designed for efficient blending of dry powders, granules, and sometimes light pastes or slurries. It features a U-shaped horizontal trough with a central agitator shaft equipped with inner and outer helical ribbons that rotate to create a counter-current flow, ensuring thorough mixing through radial and axial material movement. The outer ribbons push material toward the center, while inner ribbons direct it outward and in opposite axial directions, promoting convection, diffusion, and shear for homogeneous results in short cycles. 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 mixer operates on mechanical agitation: the rotating ribbons generate a triple-action flow—convective, diffusive, and shear—to break lumps and achieve uniformity without excessive heat or degradation. It’s suitable for free-flowing to cohesive materials but less ideal for very fragile or highly viscous pastes. Power requirements scale with bulk density, and maintenance is minimal with proper sealing to prevent leaks.
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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.
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.
Capacities range from lab-scale to large industrial, with optimal fill levels at 40-70% for best performance.
The machine features a U-shaped trough with mirror-polished SS304/SS316 contact surfaces, centrally located flush bottom discharge valve, and easily disassembled stuffing boxes with Teflon gland packing. This cGMP-compliant design minimizes dead zones, allows quick product changeovers, and supports thorough cleaning. Optional CIP systems are available for pharmaceutical and food-grade applications.
Yes. Optional jackets for heating/cooling (steam, hot water, or chilled fluid) and spray nozzles for liquid addition make it versatile for temperature-sensitive materials or creating light pastes. Vacuum operation and inert gas blanketing are also available for oxygen-sensitive or hazardous powders.
It is ideal for dry powders, granules, flakes, and light pastes. It handles both free-flowing and cohesive materials effectively, making it suitable for pharmaceutical APIs/excipients, herbal powders, spices, nutraceuticals, cosmetics, and food ingredients. It is not recommended for highly sticky or extremely fragile materials.
Our cGMP models offer robust SS316 construction, reliable worm reduction gearbox, excellent mixing uniformity (up to 95%), low power consumption, and wide capacity range (5L to 25,000L). With customizable options, easy maintenance, safety features, and strong after-sales support, they deliver consistent performance, fast cycle times, and long-term reliability for demanding production environments.
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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.
Adinath International manufactures high-precision vial powder filling machines and complete packaging lines, providing reliable, hygienic, and efficient solutions for global pharmaceutical industries.
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