The Rotoflo™ Silo Discharge System ensures reliable, controlled and vibration-free discharge across a wide range of powders, granules and bulk solids, from free-flowing materials to cohesive, compacted or moisture-sensitive products. Thanks to its unique rotating discharge mechanism, the system supports a continuous and consistent product flow and helps prevent bridging, rat-holing and product build-up when flow conditions become more challenging.
Process:
Intake & EmptyingRotoflo™ helps manufacturers achieve reliable and controlled silo discharge across the full range of bulk solids. From free-flowing powders and granules to products that compact, absorb moisture or become cohesive in storage, the rotating mechanism actively moves material towards the discharge points, ensuring a consistent product flow while minimizing wear on the silo structure.
Bulk materials behave differently in storage. Some remain free-flowing, while others can compact under pressure, absorb moisture, form rat-holes or stop flowing altogether. Whatever the flow behaviour, a predictable and controlled discharge is essential for stable downstream production.
Rotoflo™ supports this full range of flow characteristics through rotating arms that continuously guide material towards the outlets. This creates a controlled and predictable flow throughout the silo and provides additional support when products become more difficult to discharge.
An additional benefit is the reduction of dead storage zones. By keeping the entire silo cross-section active, Rotoflo™ helps maximize the usable storage volume while reducing product build-up.
A key advantage of Rotoflo™ is its Multi-Flow Outlet design. The system can discharge material from a single silo to up to four independent destinations. This allows multiple mixers, feeders or production lines to be supplied simultaneously from one storage vessel.
For manufacturers working with continuous processes or multiple recipes, this creates greater flexibility while reducing the need for additional silos and infrastructure.
Rotoflo™ has proven itself in demanding applications around the world and is suitable for bulk materials across a wide range of flow characteristics, from free-flowing powders and granules to cohesive, compacted and moisture-sensitive products.
Typical applications include:
Because every application is different, each Rotoflo™ system is configured according to the product characteristics, storage requirements, and desired discharge capacity.
Rotoflo™ can be engineered for a wide range of silo sizes and operating conditions. Systems are available for both new-build projects and retrofit installations in existing steel silos.
Available options include:
A major advantage is the accessibility of critical components. Maintenance can often be performed without emptying the silo first, helping to reduce downtime and operational disruption.
As part of the Dinnissen portfolio, Rotoflo™ can be seamlessly integrated into complete production processes.
In addition to silo discharge, Dinnissen provides:
By combining Rotoflo™ with downstream process equipment, Dinnissen delivers a complete solution from storage and discharge through to final processing.
Existing Rotoflo™ users can continue to rely on professional service, spare parts supply and maintenance support through Dinnissen.
At the same time, Dinnissen is investing in the further development of the Rotoflo™ platform. Using the D-Innocenter test facilities, new applications, configurations and hygienic designs are continuously being explored to meet the evolving demands of the process industry.
Download our brochure or contact one of our specialists directly. Together we will determine the most suitable silo discharge solution for your product and production process.
The Rotoflo™ Silo Discharge System is a silo discharge solution designed to ensure reliable and controlled flow of powders, granules and bulk solids. Using a unique rotating discharge mechanism, it prevents common flow problems such as bridging and rat-holing.
Rotoflo™ is suitable for a wide range of bulk materials, including sugar, starches, pet food ingredients, activated carbon, hydrated lime, titanium dioxide, chocolate crumb and many other powders and granulates.
Rotoflo™ helps solve common silo discharge challenges such as bridging, rat-holing, product compaction, inconsistent flow and dead storage zones.
The system uses a rotating discharge arm that continuously guides material towards the discharge openings. This creates a controlled and consistent flow throughout the silo without the need for vibration.
Unlike many conventional discharge systems, Rotoflo™ actively moves product towards the outlet and can discharge to up to four independent downstream destinations from a single silo.
The Multi-Flow Outlet system allows one silo to feed up to four independent downstream processes simultaneously, creating greater flexibility and reducing the need for additional storage vessels.
Yes. Rotoflo™ can often be retrofitted into existing steel silos, allowing manufacturers to improve discharge performance without replacing the entire storage system.
Yes. Rotoflo™ is specifically designed for reliable discharge from large storage silos and performs particularly well with difficult-flowing products stored in large volumes.
No. Rotoflo™ operates without vibration or aeration, reducing mechanical stress on the silo structure and minimizing maintenance requirements.
Rotoflo™ is designed to achieve near-complete silo emptying, minimizing dead storage zones and increasing the effective storage capacity of the silo.
Yes. Rotoflo™ can be supplied in ATEX-compliant configurations for use in potentially explosive environments.
Rotoflo™ is used in industries such as food processing, dairy, pet food, feed, chemicals, minerals, paint manufacturing and water treatment.
Yes. Dinnissen provides service, maintenance, spare parts and technical support for both new and existing Rotoflo™ installations worldwide.
Yes. Rotoflo™ can be integrated with conveying systems, feeders, weighing systems, sifters, lump breakers and complete Dinnissen process lines.
The best way is to contact a Dinnissen specialist. Based on your product characteristics, silo configuration and process requirements, we can advise whether Rotoflo™ is the most suitable solution for your application.
System integrator Dinnissen optimizes and innovates your production process with tailored solutions: developed, manufactured and tested in-house. From product intake, transport, dosing and weighing, mixing, grinding, sieving and packaging to full automation and control. We maximize the performance and efficiency of your entire process.
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