Economy & Market

Smart Motion Systems Power Cement Plants

Published

9 months ago

July 23, 2025

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ICR explores how advanced gears, drives, and motors are transforming cement manufacturing by enhancing reliability, reducing energy use, and enabling predictive maintenance. With digitalisation, electrification, and sustainability at the forefront, motion systems now play a strategic role in driving operational excellence and Net Zero goals.

Gears are the unsung workhorses of cement plants, critical to the operation of equipment ranging from crushers and conveyors to milling units and kilns. Built to endure heavy-duty conditions—dust, heat, shock and continuous load—they are often made from carburised, electro-welded steel, precision-ground to withstand high torque and ensure longevity. The failure of a single girth gear or pinion can halt an entire production line, emphasising the importance of quality-focused design and maintenance.
In grinding applications, such as those involving ball mills and vertical roller mills (VRMs), gearboxes play a pivotal role in power transmission. For instance, ring gears and planetary gear systems manage loads up to 8?MW, balancing efficiency with structural resilience. While planetary drives may add a 5 per cent –15 per cent premium over conventional girth-drive systems, their improved lifecycle, reduced maintenance and enhanced control often justify the higher upfront cost.
Gears also facilitate the precise rotation of kilns. Dual-drive systems, each powering pinions on opposite sides of the kiln, ensure balanced torque delivery and smooth operation. This configuration reduces shell distortion, mechanical stress, and vibration, extending component life and reducing unplanned downtime. Regular maintenance, alignment checks and vibration monitoring underpin the reliability of these high-capacity systems.
Innovation continues to advance gear performance. Companies like MAAG Gear and others have embraced high-strength materials, optimised tooth profiles and modular gearbox architectures to improve serviceability and energy efficiency. The coexistence of traditional weld-and-grind gearboxes and modern planetary or gearless drives reflects the balance between proven reliability and future readiness in cement plant design.

Lifecycle costs and return on investment
In capital-intensive industries like cement, the upfront cost of gears, motors and drives is only one piece of the financial puzzle. What truly matters over time is the total cost of ownership (TCO)—including maintenance, energy use, downtime losses and equipment lifespan. High-efficiency gearboxes or premium VFDs may appear costlier initially, but they often deliver far superior ROI through reduced power consumption and longer operational life. For example, using a high-efficiency IE4 motor can save up to 30 per cent in energy costs over a decade compared to IE1-rated models.
Modern procurement is increasingly driven by this lifecycle approach. Maintenance teams, once focused on price, now calculate costs over a 10–15-year horizon. A planetary gearbox with precision-machined gears and sealed lubrication may offer double the life of a conventional pinion system, with 40 per cent fewer breakdowns. When downtime in a cement plant can cost lakhs per hour, these savings become significant. The ability to track and predict maintenance intervals using sensor-based diagnostics only improves financial predictability.
Pradip Kalra, CEO, Stotz Gears, says, “Kiln shells, like other critical cement plant components, are manufactured in accordance with international quality standards. These standards are set by OEMs and well-known across the cement industry. I believe the foundation of delivering high-quality products lies in honesty—honesty towards quality standards, material procurement, and the will to achieve excellence. Personally, I have always repeated to myself: I must achieve it, I must achieve it. That self-motivation and conviction have taken me a long way. Every kiln shell we produce reflects that commitment. We source certified raw materials, maintain stringent manufacturing controls, and ensure precision across every stage. The final product not only meets OEM specifications but also earns the long-term trust of our clients.”
Additionally, energy audits and drive optimisation programs have become key tools in ROI evaluation. By measuring baseline power usage and simulating post-retrofit performance, plant heads can make data-backed investment decisions. For instance, the ROI period for installing VFDs on ID fans or mill motors has dropped from 3 years to under 18 months in many Indian plants, thanks to energy savings and extended motor life.
Some cement companies are also entering into performance-based contracts with OEMs—where vendors guarantee uptime, energy efficiency, or availability, with penalties and bonuses linked to performance. This shifts the focus from product cost to value delivered, and aligns all stakeholders toward plant profitability. Lifecycle thinking is no longer optional—it’s a strategic lens for both capital budgeting and operational optimisation.

Drives and motors: Energy efficiency and control
Electric motors and drives constitute one of the largest operational cost centres in cement manufacturing—accounting for as much as 75 per cent of electrical energy usage. Motors power crushers, grinders, fans, pumps and conveyors. Without precise speed control, these systems operate inefficiently, especially under partial load conditions. As the industry strives to reduce energy intensity—currently averaging 4.69?GJ/t of clinker with a 0.69?GJ/t potential improvement—the role of drives is critical.
Variable Frequency Drives (VFDs) or Variable Speed Drives (VSDs) optimise motor operation by adjusting speed to load. Since power consumption follows a cubic relationship with speed, even a 10 per cent reduction in fan speed can yield up to 27 per cent energy savings. ABB estimates VSD adoption can cut fan energy use by up to 60 per cent, and similar savings apply to pumps and conveyors. Additionally, soft-start capabilities reduce mechanical wear and electricity demand.
Medium-voltage drives are increasingly favoured in kilns and mills, offering efficient and controlled propulsion for large motors (>375?kW). These include design variants like scalar, vector and direct torque control, each enhancing process stability and reliability. Smart motor-control centres and digital monitoring add predictive maintenance capabilities, lowering downtime and protecting components from damage.
Digitalisation helps further boosts efficiency. Sensors track vibration, temperature and torque, sending alerts when anomalies appear—allowing proactive intervention. Coupled with cloud-enabled dashboards, these systems give plant managers real-time operational visuals. Emerging strategies include motor-driven kilns, optimised compressor control and regenerative braking in conveyors—all promising integrated energy savings and system longevity.

Maintenance and digital condition monitoring
Robust gear and motor performance depends as much on diligent maintenance as on quality hardware. Cement plants operate in abrasive environments, where dust ingress and heat accelerate wear on gearboxes and bearings. Traditional preventive schedules are being enhanced with condition-based monitoring (CBM), employing vibration, oil quality and thermal sensors to detect anomalies before breakdowns occur.
“The products we manufacture are primarily made from 42CrMo4 alloy steel, which is well-known for its strength and durability. This type of steel is highly resistant to corrosion and mechanical stress, which is essential in an environment like a cement plant. We also advise our customers to use protective covers while the machines are operating to further reduce environmental wear and tear. As for material performance, the tensile strength of the steel we use is around 900 N/mm². In comparison, many competitor products fail at around 600 N/mm². This shows that we never compromise on material quality, even if it means our costs are higher. Our philosophy is to prioritise long-term durability over short-term price reductions, and this approach has helped us build a strong reputation for reliability,” says Dheepan Ramalingam, Managing Director, Ringfeder Power Transmission (I).
CBM-enabled gearboxes report early signs of wear—uneven vibration, tooth damage, or gearbox play—well in advance of delays. Remote monitoring allows engineers to schedule maintenance during planned shutdowns, reducing unplanned downtime. This approach is especially valuable for critical components like kiln pinions or mill drives, where failures can stall production lines for hours or
even days.
For motors, performance data such as current fluctuations, temperature rise, and RPM deviations are tracked. Alerts flag performance drift or impending failure, triggering targeted maintenance and preventing catastrophic breakdowns. Coupled with operator training, these data-driven tools build a maintenance culture that extends asset longevity and optimises operational costs.
As plants scale in complexity, digital twins are gaining traction. By simulating gear stresses and motor behaviours under load scenarios, engineers can anticipate and resolve potential issues. Predictive analytics, powered by AI, further enhance reliability, enabling asset care programs that are cost-effective and aligned with safety and sustainability objectives.

Safety, reliability and compliance standards
In heavy industries like cement, safety and compliance are non-negotiable—and the gear and drive systems play a central role in risk prevention. Gear failures can result in catastrophic downtime or physical hazards such as shattered components or oil fires. Similarly, motor overheating, shaft misalignment, or electrical surges can pose serious threats to personnel and equipment. Therefore, selecting systems that comply with international standards like ISO 9001, IEC 60034, ISO 6336, or OSHA guidelines is critical.
Many high-performance drives now come equipped with built-in safety features: torque limiting, electronic braking, soft-start functions, thermal overload protection, and arc-flash prevention systems. These features not only protect the drive system itself but also safeguard connected equipment and operators. For example, a kiln drive motor with real-time torque monitoring can alert operators before any mechanical over-torque incident occurs, reducing the risk of accidents or
gear damage.
Regulatory compliance is another layer cement manufacturers cannot afford to overlook. Indian plants, especially those supplying to government or infrastructure projects, are now required to submit compliance records for emissions, energy consumption, and equipment safety. Components like drives and motors are increasingly scrutinised for CE marking, RoHS conformity, and BIS certification. This has elevated the importance of sourcing from certified vendors who can provide full documentation and after-sales support.
Training is also part of the safety ecosystem. OEMs and drive manufacturers now offer onsite and digital certification programs for plant technicians, enabling them to detect faults, align motors and gearboxes correctly, and safely shut down systems when needed. The result is not just improved compliance—but also a more resilient and skilled maintenance workforce, better equipped to manage evolving plant demands.

Sustainability impact and energy savings
Driven by climate targets and energy cost pressures, the cement industry is elevating energy efficiency as a sustainability imperative. Cement plants are working to reduce their energy-intensity—both in electricity (e) and thermal—through advanced drives, efficient gears, and digital controls. They aim to reduce electrical use toward 4?GJ/t and overall energy consumption below global best-practice levels.
The switch to VSD-equipped fans, pumps, and kilns reduces CO2 emissions and energy expenses. For example, a kiln fan retrofitted with VFDs at a Chinese plant lowered annual energy consumption by 10 per cent, saving US?$124,000. In India,
embracing dry-process technology and VSDs has helped most plants meet or outperform PAT-II efficiency benchmarks.
Gear innovations also contribute to sustainability. High-efficiency planetary and helical gear systems reduce friction losses and require less frequent oil changes and part replacements. Gearboxes designed with optimised tooth profiles and high-strength alloys, such as carburised steel, cut mechanical drag and electrical demand. Brands are also exploring low-lubricant and sealed gearbox systems to reduce environmental contamination.
Energy savings compound when drives and gears are integrated with alternative energy sources. Waste Heat Recovery (WHR) systems supply power to drives, reducing grid load. Solar/battery systems and kinetic energy recovery (e.g., regenerative braking) help close the efficiency loop. Together, these measures support the industry’s decarbonisation ambition toward Net Zero by 2070.

Smart factories, electrification trends
As Industry 4.0 gains momentum, gears, motors, and drives are no longer just mechanical components—they are becoming intelligent nodes in the cement plant’s digital nervous system. The integration of sensors, IoT-enabled monitoring and cloud-based analytics is turning static assets into dynamic, responsive systems.
Today, predictive maintenance dashboards allow engineers to visualise gearbox temperature trends, motor vibration or torque fluctuations in real time—enabling proactive interventions and optimising asset life.
Ramalingam exemplifies, “One of the most exciting developments is the integration of electronic feedback systems into our product lines. This represents a step toward smart technology, where products can provide real-time performance data. We are currently working on embedding sensors and feedback modules into our systems, which can give users predictive insights and maintenance alerts.”
One major trend is the emergence of digital twins—virtual replicas of physical systems that simulate their behaviour under real-world conditions. In cement applications, digital twins can model gearbox loads, monitor motor efficiency curves, and forecast failure modes. Paired with machine learning algorithms, they enable optimisation of process parameters, drive tuning, and asset scheduling without physical trials—cutting downtime and testing costs.
Another exciting development is the shift toward fully electrified drive systems, especially in rotary kilns and large vertical mills. While traditional hydraulic or mechanical drive systems still dominate in many plants, high-torque electric drives are gaining adoption due to their precision, lower maintenance, and ability to integrate with control systems. These drives also support energy recovery strategies—such as regenerative braking—enabling significant reductions in net power consumption.
Looking ahead, innovations like sensorless motor control, self-healing gear coatings, and edge AI processors for real-time condition assessment will redefine how cement plants view motion systems. These advancements won’t just boost uptime—they will provide the agility, traceability, and efficiency required for the future-ready, low-carbon smart
cement plant.

Conclusion
In cement manufacturing, gears, drives and motors serve as the backbone of plant operations—ensuring continuous, controlled motion across critical processes like crushing, grinding, kiln rotation and material handling. Today, these systems are evolving rapidly, with high-efficiency gearboxes, VFD-integrated motors and digital condition monitoring helping plants improve uptime, reduce energy use and extend equipment life.
Keeping up with the changing needs of the cement sector is mandatory for component providers. Kalra states, “Challenges are constant, especially in engineering and manufacturing. One of the biggest challenges is the increasing demand for precision and reliability from cement plants. Every year, the expectations rise. Clients demand tighter tolerances, better materials and longer-lasting components—even if the products we supplied years ago are still running without a single complaint.”
As India’s cement industry scales up capacity while pushing for sustainability and operational excellence, investing in reliable, customisable, and digitally enabled motion systems is no longer optional—it’s strategic. Whether it’s through localised innovation, safety compliance, or predictive maintenance, the performance of gears, drives, and motors will remain central to meeting future efficiency and Net
Zero goals.

– Kanika Mathur

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Economy & Market

SEW-EURODRIVE India Opens Drive Technology Centre in Chennai

Published

2 weeks ago

March 25, 2026

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The new facility strengthens SEW-EURODRIVE India’s manufacturing, assembly and service capabilities

SEW-EURODRIVE India has inaugurated a new Drive Technology Centre (DTC) in Chennai, marking a significant expansion of its manufacturing and service infrastructure in South India. The facility is positioned to enhance the company’s responsiveness and long-term support capabilities for customers across southern and eastern regions of the country.

Built across 12.27 acres, the facility includes a 21,350-square-metre assembly and service setup designed to support future industrial growth, evolving application requirements and capacity expansion. The centre reflects the company’s long-term strategy in India, combining global engineering practices with local manufacturing and service capabilities.

The new facility has been developed in line with green building standards and incorporates sustainable features such as natural daylight utilisation, solar power generation and rainwater harvesting systems. The company has also implemented energy-efficient construction and advanced climate control systems that help reduce shopfloor temperatures by up to 3°C, improving production stability, product quality and working conditions.

A key highlight of the centre is the 15,000-square-metre assembly shop, which features digitisation-ready assembly cells based on a single-piece flow manufacturing concept. The facility also houses SEW-EURODRIVE India’s first semi-automated painting booth, aimed at ensuring uniform surface finish and improving production throughput.

With the commissioning of the Chennai Drive Technology Centre, SEW-EURODRIVE India continues to strengthen its manufacturing footprint and reinforces its long-term commitment to supporting industrial growth and automation development in India.

Concrete

Material Flow Efficiency

Published

3 weeks ago

March 18, 2026

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We explore how material handling systems are becoming strategic assets in cement plants, enabling efficient movement of raw materials, clinker and finished cement. Advanced conveying, automation and digital technologies are improving plant productivity while supporting energy efficiency and sustainability goals.

Material handling systems form the operational backbone of cement plants, enabling the efficient movement of raw materials, clinker and finished cement across complex production networks. With India’s cement industry producing over 391 million tonnes of cement in FY2024 and possessing an installed capacity of around 668 mtpa, according to the CRISIL Research Industry Report, 2025, efficient material logistics have become critical to maintaining plant productivity and cost competitiveness. At the same time, cement production is highly energy intensive and contributes around 7 per cent to
8 per cent of global CO2 emissions, making efficient material flow and logistics optimisation essential for reducing operational inefficiencies and emissions states the International Energy Agency Cement Technology Roadmap, 2023. As plants scale capacity and integrate digital technologies, modern material handling systems, ranging from automated conveyors to intelligent stockyards, are increasingly recognised as strategic assets that influence plant stability, energy efficiency and environmental performance.

Strategic role of material handling
Material handling is no longer viewed as a secondary utility within cement plants; it is now recognised as a strategic system that directly influences production efficiency and process stability.
Cement manufacturing involves the continuous movement of large volumes of limestone, clay, additives, clinker and finished cement across multiple production stages. Even minor disruptions in conveying systems or storage infrastructure can lead to kiln feed fluctuations, production delays and significant financial losses. According to Indian Cement Industry Operational Benchmarking Study, 2024, unplanned downtime in large integrated cement plants can cost between Rs.15–20 lakh per hour, highlighting the economic importance of reliable material handling systems.
Modern cement plants are therefore investing in advanced mechanical handling systems designed for high throughput and operational reliability. Large integrated plants can process over 10,000 tonnes per day of clinker, requiring highly efficient conveying systems and automated stockyards to maintain continuous material flow, suggests the International Cement Review Industry Analysis, 2024. Efficient material handling also reduces spillage, minimises dust emissions and improves workplace safety. As cement plants become larger and more technologically advanced, the role of material handling is evolving from simple transport infrastructure to a critical operational system that supports both productivity and sustainability.

From quarry to plant
The transport of raw materials from quarry to processing plant represents one of the most energy-intensive stages of cement production. Traditionally, limestone and other raw materials were transported using diesel-powered trucks, which resulted in high fuel consumption, dust generation and increased operational costs. However, modern plants are increasingly adopting long-distance belt conveyors and pipe conveyors as a more efficient alternative. These systems allow continuous material transport over distances of 10–15 kilometres, significantly reducing fuel consumption and operating costs while improving environmental performance, states the FLSmidth Cement Industry Technology Report, 2024.
Milind Khangan, Marketing Manager, Vertex Market Research & Consulting, says, “Efficient and enclosed handling of fine materials such as cement, fly ash and slag requires modern pneumatic conveying systems. By optimising the air-to-material ratio, these systems can reduce energy consumption by 10 per cent to 15 per cent while ensuring smooth material flow. Closed-loop conveying further minimises dust loading and improves the performance of bag filters, supporting cleaner plant operations. In addition, flow-regulated conveying lines help prevent clogging and maintain reliable dispatch performance. Overall, automation in pneumatic conveying delivers immediate operational benefits, including improved equipment uptime, lower energy use, reduced material spillage and more stable kiln and mill performance.”
Pipe conveyor systems are particularly gaining traction because they provide a completely enclosed transport system that prevents material spillage and dust emissions. According to global cement engineering studies, conveyor-based transport can reduce energy consumption by up to 30 per cent compared to truck haulage, while also improving operational reliability. Several cement plants in India have already implemented such systems to stabilise quarry-to-plant logistics while reducing carbon emissions associated with diesel transport.

Stockyard management and homogenisation
Stockyards play a critical role in maintaining raw material consistency and stabilising kiln feed quality. Modern cement plants use advanced stacker and reclaimer systems to ensure efficient storage and blending of raw materials before they enter the grinding and pyroprocessing stages. Automated stacking methods such as chevron or windrow stacking enable uniform distribution of materials, while bridge-type or portal reclaimers ensure consistent extraction during kiln feed preparation. These systems are essential for maintaining stable chemical composition of raw meal, which directly influences kiln efficiency and clinker quality. The Cement Plant Operations Handbook, 2024 indicates that advanced homogenisation systems can reduce raw mix variability by up to 50 per cent, significantly improving kiln stability and energy efficiency. Integrated stockyard management systems also incorporate sensors for monitoring bulk density, moisture levels and stockpile volumes, enabling real-time control over material blending processes.

Clinker and cement conveying technologies
Once clinker is produced in the kiln, it must be efficiently transported to storage silos and subsequently to grinding and packing units. Modern cement plants rely on high-capacity belt conveyors, bucket elevators and pneumatic conveying systems to manage this stage of material flow. Steel-cord belt bucket elevators are now capable of lifting materials to heights exceeding 120 metres with capacities reaching 1,500 tonnes per hour, making them suitable for large-scale clinker production lines, states the European Cement Engineering Association Technical Paper, 2023.
For fine materials such as cement, fly ash and slag, pneumatic conveying systems provide a reliable and dust-free solution. These systems transport powdered materials using controlled airflow, ensuring enclosed and contamination-free movement between grinding units, silos and packing stations. Optimised pneumatic systems can reduce energy consumption by 10 per cent to 15 per cent compared to older conveying technologies, while also improving plant cleanliness and environmental compliance, according to the Global Cement Technology Review, 2024.

Automation and digitalisation
Digitalisation is transforming material handling systems by introducing real-time monitoring, predictive maintenance and automated control. Advanced sensors and Industrial Internet of Things (IIoT) platforms enable plant operators to track conveyor health, stockpile levels and equipment performance in real time. Predictive maintenance systems analyse vibration patterns, temperature fluctuations and equipment load data to detect potential failures before they occur. According to McKinsey’s Industry 4.0 Manufacturing Report, 2023, for heavy industries, digital monitoring and predictive maintenance technologies can reduce equipment downtime by up to 30 per cent and increase productivity by 10 per cent to 15 per cent. Digital control centres also integrate data from conveyors, stacker reclaimers and dispatch systems, enabling centralised management of material flows from quarry to dispatch.

Handling of AFR
The growing adoption of Alternative Fuels and Raw Materials (AFR) has introduced new challenges and opportunities for material handling systems in cement plants. AFR materials such as refuse-derived fuel (RDF), biomass and industrial waste often have irregular particle sizes, variable moisture content and lower bulk density compared to conventional fuels. As a result, specialised storage, dosing and feeding systems are required to ensure consistent kiln combustion. According to the Cement Sector Decarbonisation Roadmap published by NITI Aayog in 2026, increasing the use of AFR could enable India’s cement sector to achieve thermal substitution rates of around 20 per cent in the coming decades. To support this transition, plants are investing in automated receiving stations, shredding units, drying systems and precision dosing equipment to stabilise AFR supply and combustion performance.

Energy efficiency and dust control
Material handling systems also play a crucial role in improving plant energy efficiency and environmental performance. Modern conveyor systems equipped with variable speed drives and energy-efficient motors can significantly reduce electricity consumption. Permanent magnet motors used in conveyor drives can deliver 8 per cent to 12 per cent energy savings compared to conventional induction motors, improving overall plant energy efficiency according to the IEA Industrial Energy Efficiency Study, 2023. Dust control is another major concern in cement plants, particularly during material transfer and storage operations. Enclosed conveyors, dust extraction systems and advanced bag filters are widely used to minimise particulate emissions and improve workplace safety.

Future trends in material handling
The future of material handling in cement plants will be shaped by automation, digitalisation and sustainability considerations. Emerging technologies such as AI-driven logistics optimisation, autonomous mobile equipment and digital twins are expected to further improve plant efficiency and operational visibility. Digital twin models allow engineers to simulate material flow patterns, optimise stockyard operations and predict equipment performance under different operating conditions. According to the International Energy Agency Digitalisation and Energy Report, 2024, the adoption of advanced digital technologies could improve industrial energy efficiency by up to 20 per cent in heavy industries such as cement manufacturing. As cement plants expand capacity and adopt low-carbon technologies, intelligent material handling systems will play a critical role in maintaining productivity and reducing environmental impact.

Conclusion
Material handling systems have evolved from basic transport infrastructure into strategic operational systems that directly influence plant efficiency, reliability and sustainability. From quarry transport and automated stockyards to digital dispatch platforms and advanced conveying technologies, modern material handling solutions enable cement plants to manage large production volumes while maintaining process stability.
As India’s cement industry continues to expand to meet infrastructure and urban development demands, investments in advanced material handling technologies will become increasingly important. By integrating automation, digital monitoring and energy-efficient systems, cement manufacturers can improve operational performance while supporting the industry’s long-term sustainability and decarbonisation goals.

Kanika Mathur

Concrete

Modernise to Optimise

Published

3 weeks ago

March 18, 2026

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Cement plant modernisation is reshaping the industry through upgrades in
kilns, energy systems, digitalisation, AFR integration and advanced material
handling. We explore these technologies that improve efficiency, reduce
emissions, strengthen competitiveness, while preparing the industry for India’s
next phase of infrastructure growth.

India’s cement industry, the world’s second-largest, is undergoing a rapid transformation driven by infrastructure demand, decarbonisation targets and technological advancement. The sector’s installed capacity stood at approximately 668 million tonnes per annum (mtpa) in FY2025 and is projected to reach 915–925 mtap by 2030, supported by large-scale capacity expansions and infrastructure investment cycles, suggests CRISIL Intelligence Industry Report, 2025. At the same time, cement production remains highly energy intensive and contributes about 6 per cent to 7 per cent of India’s total greenhouse gas emissions, making efficiency improvements and modernisation critical for long-term sustainability as stated in CareEdge ESG Research, 2025. As a result, cement manufacturers are investing in advanced kiln technologies, digital monitoring systems, waste heat recovery, alternative fuels, and modern material handling infrastructure to enhance productivity while aligning with global decarbonisation pathways.

Need for modernisation
The need for plant modernisation is closely linked to the sector’s rapid capacity expansion and rising operational complexity. India’s installed cement capacity has grown significantly in the last decade and is expected to exceed 900 mtpa by 2030, driven by demand from housing, infrastructure and urban development projects, as per the CRISIL Intelligence Industry Report, 2025. However, increasing scale also places pressure on energy efficiency, logistics, and production stability. The report also suggests that the cement plants must upgrade equipment and processes to operate at higher utilisation rates, which are projected to reach 75 per cent to 77 per cent by the end of the decade, compared to around 72 per cent to 74 per cent in FY2026.
Environmental imperatives are another major driver of modernisation. Cement manufacturing is responsible for a significant share of industrial emissions because clinker production requires high-temperature processes that depend heavily on fossil fuels. According to CareEdge ESG research, the cement sector contributes 6–7 per cent of India’s total greenhouse gas emissions, with approximately 97 per cent of emissions arising from direct fuel combustion and process emissions in kilns. Consequently, plant modernisation initiatives now focus not only on productivity improvements but also on reducing emissions intensity, energy consumption, and reliance on conventional fuels.
“One of the most impactful upgrades implemented at Shree Cement in the last five years has been the adoption of advanced data management platforms that provide real-time visibility across major process areas. This digital advancement has strengthened plant automation by enabling faster and more accurate responses to process variations while improving the reliability of control loops. Real-time dashboards, integrated analytics and automated alerts now support quicker, data-driven decision-making, helping optimise kiln and mill performance, improve energy control and detect deviations early. By consolidating data from multiple systems into a unified digital environment, the company has enhanced operational consistency, reduced downtime and improved both productivity and compliance. This shift towards intelligent automation and real-time data management has become a key driver of operational excellence and future-ready plant management,” says Satish Maheshwari, Chief Manufacturing Officer, Shree Cement.

Kiln and pyroprocessing upgradation
The kiln remains the technological heart of cement manufacturing, and modernisation efforts often begin with upgrades to pyroprocessing systems. Many older plants in India operate with four- or five-stage preheaters, while modern plants increasingly adopt six-stage preheater and pre-calciner systems that significantly improve heat efficiency and clinker output. These systems enhance heat transfer, reduce fuel consumption, and stabilise kiln operations under high throughput conditions.
Professor Procyon Mukherjee suggests, “Cement manufacturing is, at its core, a thermal process. The rotary kiln and calciner together account for energy consumption and emissions. The theoretical thermal requirement for clinker production is around 1700–1800 MJ per tonne, yet real-world plants often operate far above this benchmark due to inefficiencies in combustion, heat recovery and material flow. Modernisation, therefore, must begin with the
kiln system, and not peripheral automation or
isolated upgrades. The shift from wet to dry process kilns, combined with multi-stage preheaters and precalciners, has already delivered step-change improvements, making dry kilns nearly 50 per cent more energy efficient.”
Recent investment programmes across the industry have included kiln cooler upgrades, advanced burners, and improved refractory materials designed to increase operational reliability and reduce specific heat consumption. Such upgrades are essential because cement production remains highly energy intensive, and continuous efficiency improvements are required to meet global decarbonisation targets. According to the International Energy Agency (IEA) Cement Tracking Report, 2023, the cement sector must achieve annual emissions intensity reductions of around 4 per cent through 2030 to align with global net-zero scenarios.

Energy efficiency and WHRS
Energy efficiency remains one of the most important areas of modernisation in cement manufacturing, given the sector’s heavy reliance on thermal and electrical energy. Modern plants deploy advanced process controls, efficient grinding systems, and improved combustion technologies to reduce specific energy consumption. The adoption of energy-efficient technologies is particularly important in India, where energy costs account for a large share of production expenses. As demand grows and plants expand capacity, improving energy performance becomes essential to maintain competitiveness.
Waste Heat Recovery Systems (WHRS) have emerged as a key solution for improving plant energy efficiency. During cement production, large volumes of high-temperature gases are released from kilns and coolers. WHRS technology captures this waste heat and converts it into electricity, thereby reducing reliance on external power sources. According to energy benchmarking studies for the Indian cement industry, installed waste heat recovery capacity in the sector has reached approximately 840 MW, with an additional potential of around 500 MW states the Green Business Centre, Energy Benchmarking Report, 2023. Several leading producers have already implemented large WHRS installations; for example, UltraTech Cement has deployed systems with around 121 MW of waste heat recovery capacity, reducing carbon emissions by nearly 0.5 million tonnes annually according to the Energy Alternatives India Case Study, 2024.

Integration of AFR
The integration of Alternative Fuels and Raw Materials (AFR) is another critical dimension of cement plant modernisation. AFR refers to the use of industrial waste, biomass, refuse-derived fuel (RDF), and other non-fossil materials as substitutes for conventional fuels such as coal and petcoke. Increasing the use of AFR helps reduce fossil fuel consumption while simultaneously addressing waste management challenges. According to the NITI Aayog Decarbonisation Roadmap, 2026, scaling the use of RDF and other alternative fuels could enable the sector to achieve thermal substitution rates of around 20 per cent in the coming decades.
However, integrating AFR requires significant plant modifications and operational adjustments. Waste-derived fuels often have inconsistent calorific values, higher moisture content, and heterogeneous physical properties compared to traditional fuels. As a result, modern plants invest in advanced fuel preparation systems, dedicated feeding equipment, and automated dosing technologies to ensure stable kiln operation. These upgrades allow plants to maintain consistent clinker quality while increasing the share of alternative fuels in their energy mix.

Digitalisation and smart plant operations
Digitalisation is rapidly transforming cement plant operations by enabling data-driven decision-making and predictive maintenance. Industry 4.0 technologies such as IoT sensors, artificial intelligence (AI), and advanced analytics are now used to monitor equipment performance, optimise process parameters, and anticipate maintenance requirements. These digital tools enable plant operators to detect early signs of equipment failure, minimise unplanned downtime, and improve operational efficiency. Predictive maintenance systems, for example, analyse vibration, temperature, and acoustic signals from rotating equipment to identify potential faults
before they escalate into major breakdowns. Digital twins and integrated control systems further allow operators to simulate plant performance under different scenarios and optimise production strategies. Such technologies are becoming increasingly important as cement plants operate at larger scales and higher levels of process complexity.
Maheshwari also adds, “Plant modernisation is also increasingly central to the global competitiveness of Indian cement manufacturers. As cost pressures rise across energy, logistics and regulatory compliance, modern plants offer the structural efficiency required to operate reliably and competitively over the long term. Technologies such as AI-driven Advanced Process Control (APC) integrated with real-time data systems are emerging as essential investments for the future. These platforms use predictive algorithms, machine learning and live process inputs to optimise kiln, mill and utility operations with greater precision than traditional control systems. By continuously analysing variations in feed chemistry, temperature profiles, energy demand and equipment behaviour, APC enables stable operations, lower specific energy consumption, reduced emissions and improved product consistency. As regulatory expectations tighten and plants pursue higher efficiency with lower carbon intensity, AI-enabled APC will play a crucial role in strengthening automation, enhancing decision-making and ensuring long-term operational resilience.”

Modern material handling and logistics
Material handling systems play a critical role in ensuring smooth plant operations and efficient logistics. Modern cement plants rely on advanced conveying systems, automated stockyards, and digital dispatch platforms to manage the movement of raw materials, clinker, and finished cement. Long-distance belt conveyors and pipe conveyors are increasingly replacing truck-based transport between quarries and plants, reducing fuel consumption, dust emissions, and operational costs. Automated stacker-reclaimers ensure consistent blending of raw materials,
which improves kiln stability and clinker quality. Meanwhile, advanced packing and dispatch systems equipped with high-speed rotary packers and robotic palletisers enhance throughput and reduce manual labour. These technologies allow cement plants to optimise logistics efficiency while supporting higher production capacities.

Emission control and environmental compliance
Environmental compliance has become a central focus of cement plant modernisation as regulators and investors place greater emphasis on sustainability performance. Modern plants deploy advanced emission control technologies such as high-efficiency bag filters, electrostatic precipitators, and selective non-catalytic reduction systems to reduce particulate matter and nitrogen oxide emissions.
Sine Bogh Skaarup, Vice President, Head of Green Innovation and R&D, Fuller Technologies says, “One of our key focus areas is decarbonisation. We help cement producers reduce CO2 and overall carbon emissions. We offer alternative fuel solutions and calcined clay technologies to enable the production of LC3 cement, which play a significant role in decarbonising the cement industry. By combining alternative fuels and calcined clay solutions, CO2 emissions can be reduced by up to 50 per cent, making this a highly impactful approach for sustainable cement production.”
Continuous emission monitoring systems are increasingly used to track environmental performance in real time and ensure compliance with regulatory standards. In addition to air pollution control, cement companies are also investing in water recycling systems, renewable energy integration, and carbon reduction initiatives. These measures are essential for aligning the sector with national climate goals and improving the environmental footprint of
cement manufacturing.

Economic benefits and future outlook
Beyond environmental and operational advantages, cement plant modernisation also delivers significant economic benefits. Energy efficiency improvements, digital process optimisation, and advanced material handling systems reduce operating costs and improve asset utilisation. Waste heat recovery and alternative fuels help lower fuel expenditure and reduce exposure to volatile fossil fuel markets. As the industry expands capacity to meet growing demand, modernised plants are better positioned to achieve higher productivity and maintain profitability. The long-term outlook for the sector remains positive, with India expected to continue large-scale infrastructure investments in roads, housing, railways, and urban development.
Milan R Trivedi, Vice President – Projects, Prod & QC, MR, Shree Digvijay Cement, says, “The main focus in case of modernisation projects drives through the investment decision, which is mainly based on IRR and impact on overall efficiency improvement, cost optimisation and improvement in reliability. However, there are certain modernisation, which has high impact on environmental impact, statutory requirements, etc. has higher priority irrespective of ROI or payback period.”
“The energy efficiency and reliability investment projects generally provide fast return on investment whereas strategic, digitalisation and environmental investment projects provide long term and compounded benefits. Typical modernisation investment projects are decided with IRR of about > 20 per cent, payback period of typically 2-3 years for fast-track projects,” he adds.
In this context, modernisation will remain a key strategic priority for cement manufacturers seeking to maintain competitiveness in an increasingly sustainability-focused market.

Conclusion
The modernisation of cement plants is no longer a purely technical upgrade but a strategic transformation that reshapes how the industry operates. As India’s cement sector expands capacity toward the next growth cycle, improvements in energy efficiency, digitalisation, alternative fuels and advanced logistics will determine the competitiveness of individual plants. Modern technologies allow producers to operate at higher productivity levels while simultaneously reducing energy consumption and emissions intensity.
Looking ahead, the pace of technological adoption will play a decisive role in shaping the future of
the cement industry. Companies that successfully integrate modern equipment, digital systems, and sustainable production practices will be better positioned to meet rising infrastructure demand while aligning with global climate commitments. In this evolving landscape, plant modernisation stands as the cornerstone of both operational excellence and environmental responsibility.