Aksa Process Plant Teknik

Grinding, Classification, and Plant Improvement Solutions

Our solutions cover pendulum roller mills, dynamic air classifiers, and the retrofit work that determines plant performance.

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Pendulum Roller Mills

Pendulum roller mills combine grinding, classification and, when required, drying in a single machine. This combination and their grinding efficiency offer an advantage over other grinding systems.

Short residence time in the grinding chamber helps keep energy consumption and wear per tonne of product low.
Particles dispersed in the mill airflow have extensive contact with the drying air, enabling effective simultaneous drying with low heat consumption.
The specified high airflow supports faster drying and improved classifier performance.
In mills that grind and classify in the same machine, the high circulating load makes air-classifier efficiency a major factor in overall mill efficiency.
Our high-efficiency vortex breaker wheel air classifier controls final product particle size with low energy consumption and wear.

Dynamic Air Classifiers and the Vortex Breaker Wheel

In a mill where grinding and classification share the same air circuit, classifier efficiency largely determines mill efficiency: a sharper cut lowers circulating load and wasted regrinding. Our classifier work centres on the vortex breaker wheel concept, developed to reduce coarse–fine remixing at the classifier wheel and improve fine-product recovery.

Separation in an air classifier depends on particle size, density and shape, airflow, classifier geometry, rotor speed, and feed conditions. We therefore treat every cut-point and capacity target as an application-specific engineering question — answered against the actual material and operating conditions, not a brochure value.

Vortex breaker classifier wheel for a dynamic air classifier, machined and assembled in our workshop

Mechanical Sealing, Vibration Damping, and Wear Parts

In conventional pendulum mills, dust ingress past the roller seals is a leading cause of blocked rollers and unplanned stops. Our mechanical seal — laser-ground Coronit graphite cast iron with a dedicated lubrication system — is engineered for the high peripheral speeds of pendulum roller service, where standard sealing arrangements cannot survive.

Pendulum mills also vibrate by nature. We damp joint oscillation with elastomer ultra bushings at the pendulum joints, and we manufacture CNC-machined seal housings, bearing-hub revisions, and pendulum-mill spare and wear parts.

Pendulum roller assembly being lowered into the grinding chamber in our workshop: four pendulum rollers with their journals, mechanical seal housings, and grinding-ring liner

Running vibration test: a full water bottle stands upright on the housing of the operating mill.

Rotary Thermal Process Equipment

Alongside grinding systems, our reference base covers rotary thermal equipment: preheaters, sinter rotary kilns, rotary calciners, rotary coolers, and rotary and double-shell dryers — including production lines for Dead Burned Magnesia (DBM), Caustic Calcined Magnesia (CCM), and cristobalite.

Rotary kiln line at a magnesia plant in Greece, part of our rotary thermal equipment reference base

Rotary kiln installation: a kiln shell section lifted into position by crane.

Broader Plant Scope

Beyond the lead specialties, we support the wider equipment needs of mineral processing plants.

Crushing and grinding systems
Screening and classification systems
Magnetic separation solutions
Dewatering and treatment systems
Vibro feeders and auxiliary process equipment
Consultancy, projects, and service