Jens Mose and John Terembula, Product Line Management, FLSmidth A/S, explore how cement manufacturers can utilise VRMs to reduce the clinker factor and meet their environmental targets, in the final part of this three-part series. You can find parts one and two in the August and September issues of Indian Cement Review.
OPTIMISING PARTICLE SIZE DISTRIBUTION Experience has shown that practically every type of cement around the world can be – and is already being – produced in an OK MillTM. While the particle size distribution (PSD) of the product is normally steeper in a VRM cement mill compared to a traditional ball mill, this can, to some extent, be modified by working with various parameters such as grinding pressure and dam ring height. The air flow and the separator speed are also used to customise the PSD curve to customer specific requirements. However, as interest in greater utilisation of SCMs increases, cement manufacturers are keen to grind to an even steeper PSD curve to allow for the possibility of mixing more SCMs into the finished product.
THE ADVANTAGES OF VRMS FOR SCMS When the VRM is designed specifically for grinding cement and cementitious materials, cement manufacturers experience better:
Efficiency: Lowest power consumption compared to other vertical roller mills on the market.
Reliability: The run factor is very high, > 95 per cent
Versatility: Rapid change between different feed compositions and the ability to grind a wide range of materials to very high Blaine or the lowest residues
The OK MillTM was designed with these priorities in mind, and has retained its original shape with a dual lobed roller surface and central grooved and bowl-shaped table design. As the only VRM in the market specifically designed for cement grinding, all rollers are active with each performing material bed compaction and de-aeration, and high-pressure grinding. Sustainability is also a priority, which is why the mill is designed to require minimal water injection on the mill table, using an average 50 per cent less water than competing mill designs.
Maintenance is also a sustainability issue. Better to repair a part than replace it; better to be proactive than reactive. Predictive maintenance services aim to enable a higher level of proactivity, preventing unexpected downtime and reducing the cost of maintenance. Over the last 20 years, in-situ rewelding or hard facing has become the standard maintenance practice for VRM, particularly for OK MillsTM with segmented wear liners that can tolerate repeated welding. Roller liner segments can be rewelded as many as 10 times or more and table segments 15 times or more. In order to improve its service capability for VRMs, FLSmidth works with welding services providers across the globe. We have also developed ceramic wear segments in an OK MillTM, which not only perform better but can also be recycled.
DIGITAL TOOLS FOR GREATER FLEXIBILITY Digitalisation makes it easier to use SCMs and will enable further reductions in the clinker factor. The following are just a snapshot of the tools currently available; more are in development all the time:
Process control solutions give operators greater control over their mill operating parameters to optimise performance and ensure maximum efficiency.
Sensors continually monitor mill operation, enabling you to see any drop in stability as it happens and react swiftly.
Automated laboratories enable optimum quality control throughout the process.
Condition monitoring services and remote service support give you 24/7 access to expert assistance.
CONCLUSION As the cement industry works to reduce its carbon footprint, investments have to be made in future-proof technologies capable of adapting to changing cement mixes and regulatory requirements. In the grinding process, cement manufacturers need a flexible, efficient system that is operated and maintained in an optimal manner. With the latest VRM technologies, advanced digital offerings and condition monitoring services, FLSmidth believes the industry is ready to achieve more widespread use of SCMs and achieve its carbon reduction goals.
The New Delhi Municipal Council has launched an intensive sanitation drive across Lutyens’ Delhi, aiming to raise cleanliness standards in the capital’s central precincts. The programme will combine enhanced manual sweeping with mechanised cleaning and systematic waste removal to cover parks, heritage precincts and prominent thoroughfares. Authorities described the initiative as a sustained effort to improve public hygiene and reduce environmental hazards while maintaining the area’s civic image.
Operational teams have been instructed to prioritise drain clearing and litter hotspots, with special attention to markets and transit nodes that attract heavy footfall. Coordination with city utilities and waste processing units will be stepped up to ensure timely collection and disposal, and supervisory rounds will monitor adherence to cleaning schedules. Officials also intend to use data-driven planning to deploy resources efficiently and to identify recurring problem areas.
The council plans to engage resident welfare associations and business stakeholders to foster community participation in maintaining cleanliness and to support behavioural change campaigns. Public communication will be amplified through notices and outreach to encourage responsible waste handling and to inform residents about collection timings and segregation norms. Enforcement measures for littering and unauthorised dumping will be reinforced as part of a broader strategy to deter violations and sustain cleanliness gains.
The move reflects a focus on urban sanitation that officials link to public health priorities and to the city administration’s commitment to maintaining civic amenities. Monitoring mechanisms will include regular reporting and inspections to review outcomes and to recalibrate operations where necessary, according to municipal sources. The council emphasised that continued community cooperation will be essential for the drive to deliver lasting improvements in the appearance and hygiene of the capital’s core areas.
UltraTech Cement has appointed Jayant Dua as managing director (MD) designate who will take charge in 2027, the company announced. The appointment signals a planned leadership transition at one of the country’s largest cement manufacturers. The board has set a clear timeline for the handover and has framed the move as part of a structured succession plan.
Jayant Dua will be referred to as MD after assuming the role and will be responsible for overseeing operations, strategy and growth initiatives across the company’s network. The company said the designation follows established governance norms and aims to ensure continuity in executive leadership. The appointment is expected to allow a phased transfer of responsibilities ahead of the formal changeover.
The decision is intended to provide strategic stability as UltraTech Cement navigates domestic infrastructure demand and evolving market dynamics. Management will continue to focus on operational efficiency, capacity utilisation and cost management while aligning investments with long term objectives. The board will monitor the transition and provide further information on leadership responsibilities closer to the effective date.
Investors and market observers will have time to assess the implications of the announcement before the change is effected, and analysts will review the company’s outlook in the context of the succession. The company indicated that it will communicate any additional executive appointments or organisational changes as they are finalised. Shareholders were advised to refer to formal filings and company releases for definitive details on governance or remuneration.
The leadership change will be managed with attention to stakeholder interests and operational continuity, and the company reiterated its commitment to delivery on ongoing projects and customer obligations. Senior management will engage with employees and partners to ensure a smooth handover while maintaining focus on safety and compliance. Further updates will be provided through official investor communications in due course.
Merlin Prime Spaces (MPS) has acquired a 13,185 sq m land parcel in Pune for Rs 273 crore, marking a notable expansion of its footprint in the city.
The transaction value converts to Rs 2,730 mn or Rs 2.73 bn.
The parcel is located in a strategic area of Pune and the firm described the acquisition as aligned with its growth objectives.
The deal follows recent activity in the region and will be watched by investors and developers.
MPS said the acquisition will support its planned development pipeline and enable delivery of commercial and residential space to meet local demand.
The company expects the site to provide flexibility in product design and phased development to respond to market conditions.
The move reflects an emphasis on land ownership in key suburban markets.
The emphasis on land acquisition reflects a strategy to secure inventory ahead of demand cycles.
The purchase follows a period of sustained investor interest in Pune real estate, driven by expanding office ecosystems and residential demand from professionals.
MPS will integrate the new holding into its existing portfolio and plans to engage with local authorities and stakeholders to progress approvals and infrastructure readiness.
No financial partners were disclosed in the announcement.
The firm indicated that timelines will depend on approvals and prevailing market conditions.
Analysts note that strategic land acquisitions at scale can help developers manage costs and timelines while preserving optionality for future projects.
MPS will now hold an enlarged land bank in the region as it pursues growth, and the acquisition underlines continued corporate appetite for measured expansion in second tier cities.
The company intends to move forward with detailed planning in the coming months.
Stakeholders will assess how the site is positioned relative to existing infrastructure and connectivity.