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Emerging trends & challenges in Indian cement industry

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Cement companies put up capacities in excess of demand in anticipation of increased consumption of cement on account of expected hike in government spending, which did not materialize. N. A. Viswanathan, Secretary General, Cement Manufacturers’ Association dwells on the issues dogging the cement industry and spells out what needs to be done by the government to tackle these issues.Cement industry, which has a direct co-relation of 1.1 to 1.2 with GDP, plays a pivotal role in the infrastructure development of the country. Buoyed with various infrastructure policies and schemes of the government, particularly after 1982 (partial decontrol) of cement, this industry had added substantial cement capacities year-after-year, much ahead of the actual cement demand taking place. However, the overall slowdown in the economy at 6.5 per cent in FY12, which further contracted to 5.3 per cent in the Apr-Jun quarter of 2012, one of the lowest in nine years, resulting in dampening construction activities, weakening of the rupee value against dollar and higher interest rates of borrowings, to quote a few, have made a severe dent on the growth of the cement industry, from an average growth of around 10 per cent in the last couple of years to a low growth of 5 per cent in FY11 and 6.3 per cent in FY12 respectively. For no fault of theirs, the cement industry has recently been criticised and also harshly penalised for under-utilising the cement capacity, without appreciating the ground realities and the factors which have contributed to reduced capacity utilisation. Today, because of the huge mismatch between demand and supply of cement, the country is having about 93 million tonnes of excess cement capacity created after making colossal investments. To revive the economy from its present slackening mode, it is now imperative for the government to enh-a-nce cement demand by taking some positive and concrete policy measures.The backgroundThough the cement industry has been in existence since 1914, appreciable growth in the cement production has been witnessed only after the introduction of partial decontrol in 1982 culminating in total decontrol in 1989 and delicensing in 1991. With the implementation of liberalisation policies of the government in 1991 followed by government’s thrust on infrastructure development in the country, the pace of the growth of the cement industry has been unprecedented.Exponential GrowthThe burgeoning growth of the industry can be gauged from the fact that for creating the first 100 million tonnes capacity, prior to partial decontrol era, the industry took 83 long years, whereas to reach the second and third 100 million tonnes mark, the period had substantially shrunk to 11 years and less than 4 years, respectively (see chart). Cement capacity which was 64.55 million tonnes in 1990-91 reached 340.44 million tonnes in 2011-12. Similarly, cement production went up from 48.90 million tonnes to 247.32 million tonnes during the same period.World Class IndustryIndia is the second largest cement producing country in the world, next only to China both in quality and technology. It produces about 7 per cent of the global production. In 2010, world production of cement was 3294 million tonnes. It is a matter of concern that even after attaining the second position, our per capita cement consumption is very low at 180 kg., which is much below the global average of 450 kg. (see table).Per capita consumption of cement is accepted as an important index of the country’s economic growth. Hence, there is enough potential to enhance our per capita cement consumption to match with the world average.With the adoption of massive modernisation and assimilation of state-of-the-art technology, Indian cement plants are today most energy-efficient and environment-friendly and are comparable to the best in the world in all respects, whether it is kiln size, technology, energy consumption or environment-friendliness. Industry has progressively reduced its energy consumption from 800-900 kwh/tonne clinker in 80s to 650-750 kwh/tonne clinker now. Similarly, power consumption registered a remarkable improvement from 105-115 kwh/tonne cement to 70-90 kwh/tonne cement during the said period. Presently, about 99 per cent of the total capacity in the industry is based on modern and environment-friendly dry process technology. Cement industry has now been making sincere efforts to utilise waste heat recovery in the plants.Problems plaguing the industryThere are a number of constraints and bottlenecks which are hindering the growth of this core sector industry. A few of the major concerns of the industry are discussed below:Excess cement capacity: Cement industry has been experiencing glut situation as there has been mammoth mismatch between cement demand and its supply. The industry had created the capacity on the back of government’s projection of potential cement demand arising out of the thrust given for infrastructure development in the country and the allocation of funds earmarked for the purpose. However, the cement demand, as projected, has not materialised, despite the capacity having been created well in advance after making huge investments.Acute shortage of coal: Coal is one of the major raw materials needed by the industry both in the manufacturing of cement and also for generating power. In the last couple of years, there has been a steep drop in the supply of linked coal to the cement industry from 70 per cent in FY04 to almost 39 per cent now, mainly due to diversion of coal to the power sector. Cement companies, therefore, have perforce to resort to either open market purchase or imported coal which works out to nearly 2 to 2.5 times higher than the domestic price or use of the alternate fuel like pet coke, lignite, etc. which also adds up significantly to the additional cost of production. What is worse, new capacities are not being given any coal under the Linkage Scheme and therefore there is a real fear that the shortage of the main fuel, with no assurance of its availability in future, may actually hamper the required capacity additions for future build up. With the increasing cost of coal and other input materials such as diesel, etc. the production cost of cement has gone up significantly.Inadequate availability of wagons: Rail is the ideal mode of transportation for cement industry. However, it has always been plagued by the short supply of wagons, particularly during the peak period. In addition to this, infrastructure constraints and also not factoring the points of view of the cement industry, which is one of its largest consumers, in the policies of the railways have been hampering the planned movement of cement to the consumption centres, adversely impacting the production schedule and also increasing the overall transportation cost of cement. Rail share for cement which was 53 per cent a couple of years back has come down to 35 per cent now, which is a matter of great concern both to the cement industry and the railways.Cement highly taxed: Although cement is a high volume low value product, it is one of the highly taxed commodities (60 per cent of the ex-factory price), even more than luxury goods. This is exclusive of the freight transportation, which is about 20 per cent of the operating cost. The levies and taxes on cement in India are far higher compared to those in the countries of Asia-Pacific region or even compared to the developing economies like Pakistan and Sri Lanka. Cement and steel are two major materials needed for construction of any infrastructure. However, it is ironic that the rate of VAT charged on cement and steel differs vastly. While the value-added tax (VAT) on steel is only four per cent, it is 12.5 per cent on cement/clinker which goes up to even 15 per cent in some of the states.Steep fall in cement exports: With the high incidence of government levies, infrastructure constraints at ports and the regulatory policies of the government providing encouragement for import of cement with nil custom duty, the export of cement and clinker from India has been steadily and continuously declining from 9 million tonnes in FY07 to 3.5 million tonnes in FY12, despite the fact that Indian cement industry is presently having the substantial excess capacity of cement and clinker.Use of fly ash unviable: Cement industry’s initiative and investment to the tune of more than Rs 1000 crore for effectively utilizing the industrial waste fly ash, which was otherwise posing a nuisance as a health hazard, has helped the thermal power plants in addressing and tackling the menace of fly ash related health and environmental hazards. However, power plants which had been earlier supplying fly ash to the cement industry free of cost have for the last couple of years, as per the order of the Ministry of Environment and Forests, started charging for fly ash from November 2009. The order has also made it mandatory for the cement plants having captive power plants to supply 20 per cent of the fly ash generated as free of cost to the small scale brick manufacturers, etc. within the vicinity of 100 kms of their plants. Both these have severely impacted the production cost of cement and also seriously threatened the fly ash recycling potential in the country.XII Plan – cement demand projectionsAs per the report submitted to the Planning Commission recently by the Working Group on Cement Industry for XIIth Plan, the country’s cement production and capacity is estimated to surge from 247.32 million tonnes and 340.44 million tonnes respectively in FY12 to 407.4 million tonnes and 479.3 million tonnes respectively by FY17.Future OutlookThe slackening economy will take at least one or two years to bounce back to its earlier level. This would, as a thumb rule, apply to the cement industry also. Since India has been emerging as one of the fastest growing economies in the world, the future outlook for cement looks to be bright, provided government formulates facilitating growth oriented policies so that our per capita cement consumption matches with at least with some of the developing economies.Measures for stimulating cement demandIt is imperative to bring back this core cement industry on higher and faster growth trajectory by revival of cement demand through faster growth of infrastructure sector, including roads, ports, airports, housing, irrigation projects, and so on. This would be possible particularly by bringing out more encouraging schemes for affordable housing with income tax relief and by constructing long-lasting cement concrete roads and adopting cement concrete canal lining to conserve 50 per cent precious water that presently seeps through our unlined canals. Water thus saved can be effectively utilized for our agriculture and other needs. The government’s long cherished ‘dream’ to provide ‘world-class standard roads’ can be fulfilled only if cement concrete roads and white topping (a technology on which a concrete layer is laid on the existing bitumen road) are adopted in the country on a larger scale. It is a well-established fact that cement concrete roads are long-lasting, maintenance-free for 30-40 years and today, in most of the cases, are even economical than bitumen roads in the construction stage itself and are, therefore, much-needed for the exponential growth of our economy. Further, cement roads can simultaneously resolve, without entailing any extra financial cost, a number of national issues and problems the government is grappling to find solutions even after spending thousands of crores of rupees every year. The problems which would be addressed are – (a) conservation of diesel and petrol up to 14 per cent as heavy load carriers consume less fuel on concrete roads than while plying on bitumen roads (b) preservation of precious foreign exchange being spent on the import of bitumen used in the construction of roads (c) utilization of fly ash up to 35 per cent, disposal of which is a nuisance and health hazard (d) conservation of 10 per cent electricity used for the street lights (e) protection of our quarries and mines and above all (f) generation of substantial downstream employment.Coal supply and wagon availability to the cement industry, which have become very acute and uncertain in the recent past, needs to be assured on a consistent and regular basis to the cement industry to facilitate it to meet the projected cement demand of the country.Further, the government needs to initiate certain measures in the form of providing tax incentive to the industry, reduce the overall tax value on the commodity and phase out cross subsidy on electricity, diesel and railway freight in a gradual manner. The government can also consider classifying cement as "Declared Goods" like steel having a uniform VAT rate of 4 per cent throughout the country. The overall taxation value on cement can be brought down to a level of 20-25 per cent of ex-works selling price from the current level.Tax incentive should also be pro-vided by the government for pro-moting blended cement in the larger interest of mineral conservation, waste utilization and bringing down carbon emission.Above all, level playing field needs to be provided to the domestic manufacturers to encourage cement and clinker exports by re-imposing custom duty on cement, which is nil at present. Additionally, Ready Mix Concrete (RMC) needs to be encouraged leading to bulk supply of cement and consequent reduction in pack-aging cost.It is a matter of record that even during the worst phase of economic slow-down, the Indian cement industry has surprised the economy watchers by its pace of sustained growth bucking the general trend of negative or slow growth of economy and the industry sector. It is, therefore, not too optimistic to presume that if the suggested measures are implemented, the cement industry will not only become a leader amongst the various sectors of the industry but will also emerge as a showpiece of model infrastructural growth contributing, in turn, to economic growth.



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Economy & Market

SEW-EURODRIVE India Opens Drive Technology Centre in Chennai

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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.

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Concrete

Material Flow Efficiency

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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

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Concrete

Modernise to Optimise

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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.

  • Kanika Mathur

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