Chemical processing
Powdered chemicals, additives, pigments and other formulated dry blends.
Industrial Mixers
Horizontal Ribbon Blender for Powders and Granules
A horizontal batch blender with a U-shaped trough and counter-flow double-ribbon agitator, engineered for uniform mixing with low energy demand, gentle product handling and optional automated cleaning. Designed and manufactured for chemical processing and pharmaceutical production. Review the working principle, performance features and available configuration details below when specifying your industrial project.
- Counter-flow double ribbons promote rapid, uniform mixing in a horizontal U-shaped trough.
- Suitable for powder + powder, granule + powder and powder + a small liquid addition.
- Low-energy, gentle mixing with configurable covers, thermal jackets, seals, CIP and GMP-oriented construction.
- Reference series
- WLDH
- Mixing chamber
- U-shaped trough
- Agitator
- Double ribbon
- Operation
- Batch
- Optional cleaning
- CIP
Product Essentials
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Product Overview
Horizontal Ribbon Blender for Powders and Granules
The horizontal ribbon blender combines an integral-welded U-shaped trough, a counter-flow double-ribbon agitator and a robust drive system for batch mixing of powders, granules and powder with a small liquid addition. GMP-oriented construction can be provided when required.
During operation, the outer ribbon moves material from both ends toward the center, while the inner ribbon returns it from the center toward both ends. This opposing transport creates continuous circulation, turnover and convection for uniform blending within a short cycle.
Typical applications include chemical, pharmaceutical, food, feed, plastics and building-material production. Heating, cooling, positive-pressure, vacuum and CIP versions are available as project-specific options.
Powder + PowderGranule + PowderPowder + Small Liquid Addition
Typical Technical Data
Technical specifications
Listed values apply to the identified configuration. Confirm material conditions, utilities and optional equipment before selection.
| Parameter | Reference value |
|---|---|
| Equipment type | Horizontal batch ribbon blender |
| Mixing chamber | Integral-welded horizontal U-shaped trough |
| Standard mixing tool | Double-layer inner and outer ribbon |
| Alternative mixing tools | Paddle agitator and optional high-speed chopper |
| Suitable feed combinations | Powder + powder / granule + powder / powder + a small amount of liquid |
| Reference component ratio | Approximately 1:1,000 to 1:10,000 for suitable, validated applications |
| Standard drive | Direct-coupled gear reducer |
| Large-machine drive option | Gear reducer with belt transmission |
| Standard discharge | Pneumatic flush-mounted flap valve |
| Optional process versions | Heating / cooling / positive pressure / vacuum |
| Optional hygiene package | GMP-oriented construction and CIP cleaning |
Final equipment dimensions, utilities and performance must be confirmed before quotation.
Available Sizes
Fourteen sizes cover 0.1–15 m³ total volume. Working load depends on bulk density and the loading coefficient.
| Reference Model | Total Volume (m³) | Loading Coefficient | Motor Power (kW) | Overall Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| WLDH-0.1 | 0.1 | 0.4–0.6 | 3 | 1190×740×770 | 330 |
| WLDH-0.3 | 0.3 | 0.4–0.6 | 4 | 2030×630×980 | 720 |
| WLDH-0.5 | 0.5 | 0.4–0.6 | 7.5 | 2320×730×1130 | 980 |
| WLDH-1 | 1 | 0.4–0.6 | 11 | 2800×920×1320 | 1700 |
| WLDH-1.5 | 1.5 | 0.4–0.6 | 11 | 3180×1020×1550 | 1800 |
| WLDH-2 | 2 | 0.4–0.6 | 15 | 3310×1120×1640 | 2100 |
| WLDH-3 | 3 | 0.4–0.6 | 18.5 | 3750×1290×1820 | 3000 |
| WLDH-4 | 4 | 0.4–0.6 | 22 | 4220×1400×1990 | 3980 |
| WLDH-5 | 5 | 0.4–0.6 | 22 | 4220×1500×2100 | 4620 |
| WLDH-6 | 6 | 0.4–0.6 | 30 | 4700×1610×2260 | 6180 |
| WLDH-8 | 8 | 0.4–0.6 | 37 | 4420×2150×2470 | 8200 |
| WLDH-10 | 10 | 0.4–0.6 | 45 | 5520×2960×2720 | 8920 |
| WLDH-12 | 12 | 0.4–0.6 | 45 | 5720×3010×2840 | 9520 |
| WLDH-15 | 15 | 0.4–0.6 | 55 | 5840×3540×2940 | 9950 |
Reference values support preliminary selection. Final dimensions, drive power and weight depend on the material and selected options.
Applications
Horizontal Ribbon Blender for Powders and Granules: industrial applications
Applications include chemical processing and pharmaceutical production. Confirm material properties and process conditions before selecting the equipment configuration.
Pharmaceutical production
Active or intermediate powder blends where the final design may be adapted to GMP requirements.
Food processing
Food ingredients, seasonings, additives and nutritional powder blends.
Feed production
Premixes, additives and other dry feed formulations.
Plastics industry
Polymer additives, masterbatch ingredients and related powder or granule blends.
Building materials
Dry construction compounds and formulated mineral powders.
Working Principle
From feed preparation to finished product.
The process route is selected around the material and product targets.
Material charging
Powder, granules, or powder with a small liquid addition is charged into the horizontal U-shaped trough.
Double-ribbon agitation
The inner and outer helical ribbons rotate as one assembly to mobilize the complete batch.
Opposing axial transport
The outer ribbon conveys material inward while the inner ribbon returns material toward both ends.
Convection and turnover
Repeated axial movement, radial displacement and particle turnover distribute minor and major components through the batch.
Uniform blending
Mixing continues for the validated cycle time until the specified blend uniformity is achieved.
Controlled discharge
The batch is discharged through the bottom valve, whose flush-mounted profile helps minimize residue and unmixed pockets.
Performance Highlights
Process performance shaped around the product.
Final performance remains dependent on feed properties and engineering confirmation.
High mixing uniformity
Opposing inner- and outer-ribbon flows create continuous convection and distribute ingredients throughout the working volume.
High dilution-ratio capability
For suitable materials and validated operating conditions, the source indicates effective mixing at component ratios from approximately 1:1,000 to 1:10,000.
Broad feed compatibility
Suitable duties include powder + powder, granule + powder and powder + a small amount of liquid.
Low energy demand
Efficient bulk circulation reduces unnecessary resistance and supports economical batch operation.
Gentle product handling
The ribbon action limits excessive particle impact, helping reduce degradation of friable granules.
Short mixing cycles
Simultaneous inward and outward transport accelerates material turnover and can shorten the time required to reach uniformity.
High loading coefficient
The horizontal U-shaped trough provides effective use of the available batch volume.
Flexible cover design
Arched, fully open, semi-open and fully enclosed covers are available for pressure, cleaning-access and containment requirements.
Optional automated cleaning
A CIP system can circulate heated cleaning solution through closed piping and internal spray devices to reduce residues and cross-contamination.
System Configuration
Configuration and optional functions
Select options for the material and process. Availability and final scope are confirmed in the equipment specification.
Integral-welded U-shaped trough
The trough and end plates are welded as one assembly to avoid product-holding gaps associated with bolted trough flanges.
Double-ribbon agitator
Counter-flow inner and outer ribbons generate rapid axial circulation and batch turnover.
Alternative agitator designs
Paddle elements or a high-speed chopper can be incorporated where the material and mixing objective require them.
Direct-coupled drive
Standard machines use a gear reducer directly coupled to the shaft for high torque, reliability and low operating noise.
Large-machine belt drive
A gear reducer and belt transmission can be used on larger units and can provide additional protection to drive components during abnormal loads.
Flanged shaft connection
The ribbon shaft connects to the drive shaft by flange, allowing faster removal for maintenance or agitator replacement.
Pneumatic flush flap valve
The curved valve face follows the trough profile to reduce accumulation and dead zones; edge-strip sealing supports repeated operation.
Combined shaft sealing
A balanced air seal combined with packing improves gas tightness and limits ultra-fine powder migration between the vessel and the surrounding area.
Special process versions
Heated, cooled, positive-pressure and vacuum designs can be engineered to suit project requirements.
Cover and maintenance access
Full-opening, half-opening or closed covers can be selected for cleaning and maintenance. Pressure-rated construction requires separate specification.
CIP cleaning option
Internal spray devices clean product-contact surfaces. Cleaning media, spray coverage and drainage must be selected for the material.
Heating or cooling jacket option
Select water cooling or steam/thermal-oil heating to suit the material and temperature-control requirements.
Equipment Details
Structure and optional configurations
Images below illustrate the corresponding mechanical details and available configurations.
Selection Support
What we need to confirm the final design.
Share the following formulation, batch and process information for an efficient preliminary review.
Material names and formulationBulk density and particle sizeFlowability and friabilityLiquid-addition ratioMinor-component ratioRequired batch volume and working loadTarget mixing uniformityPermitted mixing timeDischarge arrangementHeating or cooling dutyPressure or vacuum requirementContact-part materialsShaft-seal requirementCover and access requirementCIP and GMP requirements
