REFLUX™ Classifiers

Go beyond traditional separation with our REFLUX classifiers

Our REFLUX Classifier® and GradePro Classifier integrate a fluidised bed with lamella separation to deliver performance outside the bounds of traditional classification technologies. These compact machines offer significant advantages in capacity, adaptability, and efficiency.

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Key benefits of our REFLUX classifiers

  • Superior product quality, recovery and throughput

    The patented REFLUX Classifier is one of our most advanced fine-particle, gravity-based separators, offering significant advantages in separation efficiency. Incorporating the new laminar high-shear-rate system, along with other advancements, these classifiers are efficient and compact.

  • Cost-effectively boost productivity

    Combining a conventional fluidised bed separator with a set of parallel inclined plates that form lamella channels increases unit capacity, while reducing the required plant footprint, our classifiers fit into almost any plant layout.

  • Low wear and maintenance

    All components in our classifiers are designed to minimise wear and reduce maintenance. Units are manufactured to our high-quality standards and corrosion protected on the inside and outside. All joints are sealed with a high-quality elastic joint sealant to ensure leak-free operation, and units are preassembled and leak-tested in our factory before delivery.

  • Engineered for highest safety

    Our classifiers are engineered to comply with global safety standards. Each section incorporates rated Lifting Lugs for individual lifting, or to lift the entire machine. The pressurised fluidising chamber incorporates a stainless-steel pressure relief valve to prevent over-pressurisation, and a pressure indicator allows pressure monitoring from the control room.

REFLUX Classifier®

The REFLUX Classifier (RC™) is ideal for separating magnetite and hematite ores from silica at capacities of up to 500tph in a single unit, typically treating -0.300mm + 0.025mm feed. Other commodities that benefit from its advanced separation efficiency include chrome, mica, spodumene, mineral sands, manganese, and potash. It can also be used in desliming operations.

  • High-capacity, compact design

  • Easy to operate

  • Exceptional recovery of fine material

Maintenance & Service of our REFLUX classifiers 

Backed by laboratory and pilot-scale testing, we configure our REFLUX Classifier and GradePro Classifier to fit your specific application needs. We have also designed them for ease of transport, site assembly, and installation, reducing set-up time and costs. Our comprehensive aftermarket support includes troubleshooting and optimisation, maintenance support, and spare and wear parts supply.

REFLUX® Classifier

Gravity-based separation with maximum efficiency

Developed with your entire minerals processing plant in mind, the REFLUX® Classifier (RC) separates fine particles based on a difference in density or particle size.

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Frequently asked questions

FAQs for the REFLUX Classifiers

A REFLUX Classifier is an advanced separation technology that combines conventional fluidised bed separation with lamella separation to enhance the speed and efficiency of fine particle separation, either as density-based separation or particle size-based separation.

The feed slurry enters the classifier below the lamella plates forming a fluidised bed in the mixing chamber. Higher-density or coarser material sinks to a higher-density bed of solids at the bottom of the mixing chamber and is discharged. Lower density material or smaller particles are expelled from the fluidised bed and are carried upward into the lamella section, where the lighter density or fine particles overflow along with most process water. Heavier fine particles in suspension below the lamella section form an autogenous dense medium, aiding with separation of denser and larger particles, enabling lighter or finer particles to rise and be displaced to overflow. The lamella channels enhance settling rates of any misplaced fine, high-density particles, which slide down the plates and recirculate into the autogenous dense medium zone.