Unmatched Capacity and Consistent Separation: RHEduo for Industrial Potash Fertilizer Screening

16.07.2025,

Valentina Weber, RHEWUM GmbH

Take a closer look at our high-capacity screener designed to deliver consistent, efficient results in industrial potash fertilizer processing.

In large-scale potash fertilizer production, the ability to process massive volumes while maintaining precise separation is essential for operational efficiency and product quality. At RHEWUM, we understand the challenges our customers face in sieving potash and potassium salts, especially when it comes to handling large volumes, variable feed rates, and demanding process conditions. That’s why we’re proud to present a closer look at one of our current projects: two RHEduo^®high-capacity industrial screeners engineered to meet the needs of modern potash processing plants.

Designed for Maximum Throughput in Demanding Potash Applications

Key Project Data:

Screening Area: 23.40 m² per screen deck (per machine), providing a combined screening area that maximizes throughput and efficiency
Width: 2 x 1,950 mm
Length: 6,000 mm (divided into 2 x 3,000 mm sections)
Combined Throughput: 360 t/h
Triple-deck configuration: Each RHEduo^® features three independently controllable screening surfaces, allowing for precise granulation of compacted, refined potash (KCl) into three product fractions

Exceptional Capacity Meets Continuous Separation Quality

High capacity is only valuable if separation quality remains consistent. The RHEduo^® is designed to ensure that even at maximum throughput, the classification of potash into three precise fractions remains sharp and reliable. This is achieved through a combination of advanced vibration technology and intelligent material flow management:

Inlet Side: A large vibration amplitude ensures thorough loosening and stratification of the incoming material, preventing agglomeration and promoting even distribution across the screen.

Outlet Side: Here, a smaller amplitude and higher frequency deliver precise, sharp separation, ensuring that each product fraction meets exacting quality standards.

This dual-action approach guarantees that the RHEduo^® maintains high separation efficiency, even when processing at full capacity. The result: consistent product quality, minimal losses, and optimal yield from every ton of raw material.

Robust, Reliable, and Low-Maintenance

The RHEduo^® is built for the long haul. Its robust construction ensures a typical service life of at least 25 years, with minimal maintenance required. Oversized inlets and outlets prevent overloading, even during feed fluctuations, so the machine never runs full and material flow remains uninterrupted. This reliability is a key advantage for operations where downtime is not an option.

Quick Maintenance, Minimal Downtime:

Each screen mesh on both machines can be replaced individually in just 15 minutes, minimizing production losses and maximizing uptime.

Reliable Operation at High Temperatures

Potash processing often involves elevated product temperatures, typically between 140 and 160°C. Many screening machines potassium processors struggle under these conditions, especially when using traditional knocker systems for screen cleaning. Knockers are not only sensitive to high temperatures, but they also generate excessive noise, can damage the screen mesh, and require frequent maintenance.

The RHEduo^® overcomes these challenges with a chain cleaning system that keeps the screen mesh clear without the drawbacks of knockers. This approach ensures reliable operation, even at high temperatures, and further reduces maintenance needs.

Flexible Triple-Deck Design

Each RHEduo^® features a triple-deck configuration, providing six independently controllable screening surfaces in total. This flexibility allows operators to fine-tune the process for different product specifications and maximize overall efficiency. Whether you need to produce multiple product fractions simultaneously or quickly adapt to changing production requirements, the triple-deck design ensures optimal performance and consistent results.

Smart Monitoring with GeniusDrivePlus®

To support efficient operation and proactive maintenance, the RHEduo^®s are equipped with GeniusDrivePlus® motors. These advanced drives continuously monitor and log key motor data, providing real-time insights into the condition of both the motor and the connected screening machine. Data can be accessed instantly via Bluetooth using the GeniusDrivePlus® app or the GeniusDrivePlus® Connector.

Benefits for Your Operation:

Predictive maintenance: Early detection of potential motor issues helps prevent unplanned downtime.
Easy access: Retrieve motor and machine data wirelessly for fast diagnostics.
Industry 4.0 ready: Integrate with your plant’s digital infrastructure for seamless monitoring.

See the Dual RHEduo^® System in Action

Experience the capabilities and performance of the RHEduo^® firsthand by viewing our comprehensive product demonstration video at https://www.youtube.com/watch?v=NTdxAB5WCY4. This detailed presentation showcases the machine's operational characteristics and demonstrates why it's becoming the preferred choice for demanding industrial potash fertilizer screener applications.

Delivering Value for High-Volume Potash Producers

The dual RHEduo^® system is more than just a high-capacity screening solution. It’s a reliable partner for potash fertilizer producers who demand both throughput and quality. With robust design, advanced separation technology, and smart monitoring, this setup ensures your operation can meet production targets while maintaining the highest standards in product quality.