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Polysius

polytrack® eco – The Next Generation Clinker Cooler

Maximum energy efficiency, minimal wear: polytrack® eco by thyssenkrupp Polysius sets new benchmarks in clinker cooling. An innovative moving-floor system, optimized aeration grate and modular hydraulic design come together to significantly reduce power consumption and maintenance – while boosting overall plant productivity.

polytrack® eco by thyssenkrupp Polysius is the next generation of clinker cooler technology, engineered to maximize energy efficiency and process reliability. Combining an innovative moving-floor system, an optimized aeration grate and a modular hydraulic design, the polytrack® eco reduces power consumption and maintenance while enhancing overall plant productivity.

The polytrack® is the proven clinker cooler from thyssenkrupp. Our continuous drive to innovate and optimize reflects our commitment to the demands of the cement industry – a robust machine that keeps delivering high performance under challenging process conditions, today and for years to come.

Reliable cooling for modern cement plants

In cement production, clinker leaves the rotary kiln at 1,300–1,400 °C and must be cooled reliably to below 100 °C before it can be processed into the final product. This is the task of the clinker cooler. With the polytrack® eco, thyssenkrupp introduces a newly engineered cooling system that redefines this critical process – built from the ground up for maximum efficiency.

Key features at a glance

The polytrack® eco sets new benchmarks in energy efficiency:
  • Coolin efficiency
    achieves 76 % cooling efficiency for maximum heat recovery.
    76
  • Conveying efficiency
    exceeds 86 % for seamless material transport.
    86
  • Low clinker outlet temperature
    just 65 °C above ambient, reducing energy losses.
    65
  • Reduced power consumption
    operates at less than 4.5 kWh per tonne of clinker.
    4.5

Your benefits

  • High availability and robustness: engineered for continuous operation in demanding conditions, ensuring consistent cooling performance.

  • Modular and flexible design: pre-assembled components allow quick installation and short downtimes.

  • Superior thermal efficiency: high-efficiency clinker cooling at lower energy consumption reduces operational costs.

  • Low wear and maintenance-friendly: a design that minimizes wear reduces downtime and maintenance effort.

  • Cost-effective investment: an attractive balance between initial investment and long-term operational savings.

polytrack® ecoOperating principle

Stationary, low-wear aeration grate | Advanced hydraulic system | Automatic process adaptation | Efficient roll crusher

Stationary, low-wear aeration grate

The polytrack® eco features a narrower, horseshoe-shaped grate geometry and an extended static grate length, which improve clinker distribution and air flow, enabling higher secondary and tertiary air temperatures.

A protective layer of cold clinker shields the aeration plates, significantly reducing wear and extending component life. The result is spillage-free cooling – with no need for an undergrate spillage conveyor.

Advanced hydraulic system

A European-manufactured, open-loop hydraulic system provides precise control of the track movement. Its modular design reduces the number of hydraulic cylinders required, simplifying maintenance and enhancing reliability. Standardized components and a factory acceptance test (FAT) of every unit prior to shipment guarantee quality and support short delivery times.

Automatic process adaptation

The cooler automatically adapts to varying operating conditions. Based on the target clinker bed height, parameters such as hydraulic pressure and grate speed are adjusted automatically to maintain the set bed height – for stable, efficient operation.

Efficient roll crusher

The integrated roll crusher is designed for low wear and high performance. Typically featuring three to five rolls, it reduces clinker size efficiently with minimal power consumption. Its electromechanical drive supports capacities of up to 9,000 tons per day and operates at low speed to minimize wear and extend component life.

Sustainability and future-readiness

The polytrack® eco is built for the decarbonization of cement production. Optimized aeration elements and a reduced pressure drop lower power consumption, while the oxyfuel-ready design prepares the cooler for future carbon-capture concepts. In such operation, surplus cooler heat is available at a high temperature level for waste heat recovery (WHR) and drying processes – combining immediate efficiency gains with long-term future-proofing.

Modularity, retrofit and service

Thanks to modular components, the polytrack® eco adapts to any plant size and integrates into existing clinker production lines. Upgrades are also possible for existing coolers – including third-party equipment: our experts either modernize the complete cooler or replace only the aeration elements to improve cooling performance. Modern remote-support tools let our specialists assist in real time, whether for troubleshooting or scheduled maintenance.

thyssenkrupp guarantees operation of the cooling system for five years.

Reference: Phoenix Cement plant (Beckum)

At the Phoenix Cement plant in Beckum, thyssenkrupp Polysius installed the world’s first polytrack® eco clinker cooler, reusing existing infrastructure.

The plant operated at a nominal capacity of 1,400 t/day. Although the existing grate cooler was still functional, high maintenance effort and increasing alternative fuel rates of over 80% led to unstable operating conditions. To minimize investment costs, the upper housing, base frame and roll crusher were reused, while the housing was modified and elevated to integrate the longer cooler design.

The modernization was executed during the winter shutdown 2021/22 and completed within 38 days. The result was a significantly more stable and energyefficient cooling process. Heat consumption was reduced by up to 60 kcal/kg clinker, while electrical power demand dropped by 1–2 kWh/t. At the same time, the upgraded cooler enabled stable operation at alternative fuel substitution rates of over 90%.

Project Impact

  • Reduced specific heat consumption

  • Lower electrical power demand

  • Stable kiln operation at high alternative fuel rates

  • Reuse of existing structures, reduced CAPEX

  • Fast ROI

Why choose polytrack® eco?

With its advanced technology, the polytrack® eco offers cement producers a high-efficiency clinker cooling solution. Its innovative design, superior heat-recovery capabilities and low-maintenance structure make it an ideal investment for cement plants focused on sustainability and performance.

Upgrade your cement plant cooling system with the thyssenkrupp Polysius polytrack® eco – the future of energy-efficient clinker cooling.

Technical data

ParameterValue
Cooling efficiency76 %
Conveying efficiency> 86 %
Clinker outlet temperature65 °C above ambient
Power consumption< 4.5 kWh / t clinker
Roll crusher3–5 rolls, electromechanical drive
Crusher capacityup to 9,000 t / day
Download Datasheet

Expert Clinker CoolingRolf Rieger

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