PerMix Vertical Ribbon Mixers

Efficient and Versatile Mixing Solutions

Vertical Ribbon Mixers by PerMix – Compact, Efficient, and Precise

PerMix Vertical Ribbon Mixers are designed for space-saving, high-performance powder mixing in industries where cleanliness, accuracy, and gentle handling are critical. With a vertical footprint, these mixers combine efficient helical ribbon agitation with the ability to mix and dry powders, granules, and pastes — all in one compact unit.

What Is a Vertical Ribbon Mixer?

A vertical ribbon mixer is a cylindrical mixing system with a centrally mounted vertical agitator featuring helical ribbons. These ribbons move material upward along the vessel wall and downward through the center, ensuring a continuous and thorough blending cycle. The vertical design is ideal for facilities with limited floor space or where gravity-assisted discharge is preferred.

When combined with a vacuum system and heating/cooling jacket, vertical ribbon mixers transform into vacuum mixer/dryers, making them ideal for applications where temperature control and moisture removal are essential.

Key Features & Advantages:

Space-Saving Design: Vertical orientation reduces footprint, ideal for tight spaces, cleanrooms, and pilot-scale operations.
Gentle, Homogeneous Mixing: Dual-direction ribbon movement ensures complete blending without excessive shear.
Vacuum Capability: Lower drying temperatures protect heat-sensitive materials while speeding up processing.
Thermal Jackets: Integrated heating/cooling jackets enable precise temperature control during mixing and drying.
Sanitary Construction: 304 or 316L stainless steel with polished finishes and CIP-ready design.
Efficient Discharge: Bottom-mounted flush valves allow for clean, gravity-fed discharge with minimal product retention.

How Vertical Ribbon Mixers Work

Loading: Powders or wet materials are loaded through the top manually or via vacuum.
Mixing: Helical ribbons rotate, moving materials upward along the wall and downward through the center.
Vacuum (Optional): Air is removed from the chamber, lowering the boiling point and allowing low-temp drying.
Heating/Cooling (Optional): Jacketed construction allows temperature-controlled mixing and drying cycles.
Discharge: Gravity pulls material through the bottom outlet, reducing waste and simplifying transfer.

Materials of Construction

PerMix Vertical Ribbon Mixers can be built using:

304 or 316L Stainless Steel (for food, pharma, and cosmetics)
Mild Steel or Carbon Steel (for industrial use)
Titanium, Hastelloy, or Hardox (for corrosive or abrasive materials)

Applications:

Pharmaceuticals & Nutraceuticals: Powders, active ingredients, and botanical extracts
Food & Beverage: Protein powders, spices, starches, baking mixes
Cosmetics & Personal Care: Clay-based powders, exfoliants, and color additives
Chemicals & Plastics: Pigments, polymers, additives, and specialty compounds

Optional Features:

Vacuum sealing and condensate recovery
Liquid spray nozzles for trace ingredients
Load cells for batch monitoring
PLC/HMI recipe control systems
Explosion-proof or ATEX-compliant design

Why Choose PerMix?

PerMix offers industry-leading performance, custom-engineered solutions, and realistic pricing. Our vertical ribbon mixers are built for modern production needs — combining innovation, durability, and ease of use. Whether you’re mixing powders, drying under vacuum, or handling delicate ingredients, PerMix delivers precision and performance you can count on.

How Do PerMix Vertical Ribbon Mixers Work?

How PerMix Vertical Ribbon Mixers Work

PerMix Vertical Ribbon Mixers are engineered to provide efficient, homogenous mixing and, when equipped with a vacuum system, low-temperature drying — all within a compact vertical design. They are ideal for handling powders, granules, and low-viscosity pastes where space, cleanliness, and precision are critical.

The Mixing Process

At the heart of a vertical ribbon mixer is a centrally mounted helical ribbon agitator that rotates on a vertical shaft. The ribbon is designed in a way that moves material upward along the inner wall of the vessel and downward through the center. This dual-flow pattern creates a continuous circulation of material for fast, uniform mixing with minimal energy consumption.

Unlike high-shear systems, the ribbon mixer applies gentle mixing action, making it ideal for fragile powders or blends containing minor ingredients or additives that require careful distribution without degradation.

Step-by-Step Operation

Loading
Ingredients are loaded through the top of the mixer manually, with a vacuum loader, or via bulk bag/tote systems.
Mixing
As the ribbon agitator rotates, it creates a gentle axial and radial flow. The outer ribbon pushes product upward along the vessel walls, while the inner ribbon moves it downward. This recirculation results in thorough, uniform mixing across the entire batch.
Vacuum (Optional)
When vacuum is applied, the air is evacuated from the mixing chamber, lowering the boiling point of moisture. This allows for rapid drying at low temperatures, which is critical for heat-sensitive materials such as pharmaceuticals, proteins, or specialty chemicals.
Heating/Cooling (Optional)
A jacketed vessel surrounds the mixing chamber, allowing hot water, steam, or chilled glycol to control the internal temperature. This enhances the drying process or helps cool products before discharge.
Discharge
Once mixing and/or drying is complete, the finished product is discharged via a bottom outlet. The vertical design allows for gravity-assisted discharge, ensuring low product retention and easy cleaning.

Key Technical Benefits

Low Shear, Gentle Action: Maintains particle integrity and blend consistency.
Efficient Heat Transfer: With vacuum and jacket, drying is faster and more uniform.
Compact Footprint: Perfect for cleanrooms, pilot plants, or space-constrained areas.
Sanitary Access: Easy to clean and inspect, with optional CIP capabilities.

Ideal for Applications Including:

Powder blends with trace additives
Moisture removal in sensitive products
Multi-stage mixing and drying processes
Batch production of pharma, food, and specialty chemicals

PerMix Vertical Ribbon Mixers combine intelligent flow design with vacuum and thermal technology to create a highly effective, scalable mixing and drying solution for modern manufacturing environments.

Key components

Vertical Mixing Chamber
The enclosed space where materials are mixed, designed for efficient material handling and mixing.
Vertical Shaft
Equipped with helical ribbons that facilitate effective mixing by moving materials up and down within the chamber.
Inlet/Outlet Ports
Allow for convenient loading and unloading of materials.

The vertical design allows for effective mixing with reduced space requirements, making it suitable for various operational setups.