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Economy & Market

There is a push towards eco-friendly packaging

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Riddhish Pandey, Associate General Manager (Packing Plant), Wonder Cement, shares with Kanika Mathur insights into the latest bagging and packaging technologies.

In this insightful interview, we get to understand the cutting-edge advancements in cement
bagging, packaging, and palletising, through the processes at Wonder Cement, as the company focusses on efficiency, sustainability and customer-driven innovations.

How do advancements in bagging and packaging technologies improve efficiency in cement distribution?
Auto truck loader operations for handling cement bags play a critical role in ensuring that cement reaches customers quickly and in optimal condition. Advancements in bagging and packaging technologies have significantly enhanced the efficiency of cement distribution by automating processes that were once manual. Automated bagging systems, for example, allow for faster and more precise filling of cement bags, reducing the need for manual labour, which not only makes operations safer but also improves the consistency of bag weights. Innovations such as high-speed packaging machines have further boosted throughput by minimising downtime, leading to an increase in overall production capacity. Moreover, efficient packaging practices reduce the risk of damage during transportation, ensuring that cement reaches customers without compromise.
A notable advancement in modern packaging systems is the integration of advanced Roto packers with in-line bag weight correction mechanisms. These systems automatically adjust bag weights within a defined range, significantly reducing the need for manual intervention. The use of check weighers plays a vital role in this process, as they ensure that bag weights remain consistent and accurate. This not only reduces downtime associated with manual corrections but also enhances the overall efficiency and reliability of the packaging process.

What innovations in packaging materials are being adopted to enhance the durability of cement bags?
The adoption of multi-layered packaging materials, such as woven polypropylene (WPP) bags, has significantly improved the durability and strength of cement packaging. WPP bags offer enhanced resistance to moisture, tearing, and wear and tear, which is crucial during handling, transportation, and storage. These bags are particularly effective in protecting the cement from environmental factors that could compromise its quality. In addition to WPP bags, some companies are exploring the use of biodegradable or recycled materials as a sustainable alternative. These materials provide a balance between durability and environmental responsibility, helping to reduce the overall environmental impact of cement packaging without sacrificing product integrity.
Moreover, adding protective coatings and lamination to packaging has further strengthened the cement bags’ ability to withstand external pressures. These additional layers help maintain the integrity of the cement by providing an extra shield against moisture, dust, and other contaminants, ensuring the product remains in optimal condition during both storage and transit. This combination of advanced materials and protective measures enhances the overall quality of cement distribution, benefiting both the environment and customers.

How does automation in bagging and palletising impact production and cost optimisation?
Automation in bagging and palletising has led to significant improvements in production speed and cost optimisation within the cement industry. Automated systems reduce reliance on manual labor, which not only lowers operational costs but also minimises the chances of human error. These systems are designed to run continuously without downtime, thus increasing production output and ensuring a more efficient workflow.
Automated palletising, in particular, plays a crucial role by ensuring the precise stacking of cement bags. This reduces the risk of product damage during handling and transportation, as the bags are organised in a manner that maximises their stability. Additionally, improved stacking helps optimise space utilisation, which leads to more efficient storage and reduces transportation costs. Moreover, the introduction of the ‘First Come, First Out’ (FIFO) system for truck loading helps minimise Turnaround Time (TAT) by ensuring that older stock is loaded and dispatched first. This further enhances operational efficiency by reducing delays and improving the logistics process, ensuring a quicker, more streamlined delivery to customers. These automation-driven improvements contribute to both faster production cycles and cost savings, making cement distribution more effective overall.
We are using the VFD system in the packer to reduce power capacity of packing plant operation to reduce per ton cost.

What measures do you take to ensure sustainable and eco-friendly packaging solutions?
Sustainable packaging solutions are becoming a key focus in the cement industry, driven by the growing need to reduce environmental impact. One of the main strategies involves adopting eco-friendly materials, such as biodegradable bags and recycled plastic products. This shift not only helps reduce the reliance on traditional plastics but also aligns with broader environmental goals.
Reducing the use of single-use plastics is another crucial step in this process. By implementing systems for reusing and recycling cement bags, companies can significantly cut down on waste, minimising their environmental footprint. A well-designed recycling programme for cement bags, where feasible, can contribute to reducing the demand for new raw materials and ensure that packaging materials are used to their full potential. Additionally, optimising packaging design to minimise material usage, without compromising on the strength or quality of the bags, can further reduce waste. Lightweight yet durable packaging helps lower environmental impact while maintaining the integrity of the product.
Exploring alternative materials like paper bags with high-strength properties is another promising direction. These paper bags are both recyclable and biodegradable, offering a more sustainable option compared to conventional plastic bags. With the right innovations and materials, cement packaging can become more environmentally friendly, helping to reduce overall waste and promote sustainability within the industry.

How do you address challenges related to the transportation and handling of cement pallets?
To effectively address challenges related to transportation and handling, we ensure that our cement pallets are stacked optimally and securely, minimising the risk of damage during transit. Our palletising process uses specialised materials and techniques to ensure that the bags remain stable and well-positioned throughout transportation. This approach reduces the likelihood of shifting or collapsing, which can lead to product damage or inefficiencies in space utilisation. Additionally, we implement comprehensive training programs for workers, focusing on the proper handling of cement bags. These training initiatives equip employees with the necessary skills to safely load and unload the bags, further minimising the risk of damage during these crucial stages. By emphasising safe and efficient handling, we improve both the quality and reliability of our cement delivery process, ensuring that customers receive their orders in optimal condition.
This combination of optimised palletising, secure stacking, and trained workforce helps streamline the entire logistics process, contributing to reduced damage rates and enhanced operational efficiency.

What role does digitalisation play in optimising bagging and palletising operations?
Digitalisation plays a pivotal role in optimising bagging and palletising operations by integrating advanced tracking and monitoring systems. These systems leverage sensors and automated technologies to gather real-time data on critical factors such as machine performance, product weight, and packaging integrity. This data-driven approach allows for immediate adjustments to the process, ensuring consistent product quality and reducing the likelihood of errors or inconsistencies.
One of the key benefits of digitalisation is the implementation of predictive maintenance. By continuously monitoring equipment conditions, digital systems can anticipate potential failures before they occur, reducing downtime and keeping production running smoothly. This proactive approach helps maximise the lifespan of machinery and ensures that operations are not interrupted by unexpected breakdowns. Additionally, digitalisation enhances inventory management by providing real-time insights into stock levels, enabling companies to optimise their production schedules. This leads to more efficient, just-in-time production and delivery, ensuring that the right amount of cement is produced and dispatched without overstocking or shortages. Overall, the integration of digital systems boosts efficiency, reduces operational costs, and improves the reliability of the bagging and palletising process.

How are customer demands influencing trends in cement packaging design and functionality?
Customer demands are playing an increasingly influential role in shaping packaging designs, with a clear focus on convenience, durability, and sustainability. Modern consumers are looking for packaging that enhances usability, such as bags with ergonomic designs that are easy to carry, and resealable options that allow for more flexibility in storage. These features cater to the growing demand for practical, user-friendly solutions, especially for residential or small-scale use.
Alongside convenience, there is a significant push towards eco-friendly packaging. Customers are now more conscious of environmental issues, leading to a preference for packaging made from sustainable materials, such as biodegradable or recyclable options. This demand reflects the broader trend toward sustainability in various industries, including cement packaging, as consumers seek ways to reduce their environmental footprint. Additionally, the trend toward smaller, more compact bags is gaining traction. Many customers now prefer to purchase cement in smaller quantities, especially for residential or projects. This change in consumer behavior requires packaging solutions that are not only convenient but also tailored to individual needs.
Finally, customers expect a high level of consistency in packaging quality. Cement packaging must not only be functional but also provide reliable protection during storage and transit. The durability of the packaging is essential to ensure that the cement reaches customers without damage, maintaining its integrity and usability.
By responding to these customer demands, companies can enhance customer satisfaction while contributing to sustainability and efficiency in the cement packaging process.

What strategies do you implement to minimise waste and improve recyclability in cement packaging?
Prioritising waste reduction through the use of recyclable packaging materials is a crucial step in making cement packaging more sustainable. By working closely with suppliers, we can ensure that the materials used for packaging are eco-friendly, recyclable, or reusable at the end of their life cycle. This collaboration helps us source packaging solutions that align with our environmental goals, reducing waste and conserving resources.
In addition to using recyclable materials, we can focus on optimising packaging sizes and material usage during production. By designing packaging that is efficient and tailored to customer needs, we can minimise excess materials, thus reducing waste and improving resource efficiency. Streamlining packaging design not only lowers costs but also supports sustainability by ensuring that materials are used as effectively as possible.
To further support a circular economy, we can actively raise awareness among customers about the importance of proper disposal and recycling of cement packaging. Providing clear instructions on how to recycle or reuse packaging materials can empower customers to contribute to the circular economy, where materials are kept in use for as long as possible, reducing the need for new resources and minimising environmental impact.
Through these combined efforts, we can help foster a more sustainable approach to cement packaging, making a positive impact on both the environment and the community.

Economy & Market

Smart Pumping for Rock Blasting

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SEEPEX introduces BN pumps with Smart Joint Access (SJA) to improve efficiency, reliability, and inspection speed in demanding rock blasting operations.
Designed for abrasive and chemical media, the solution supports precise dosing, reduced downtime, and enhanced operational safety.

SEEPEX has introduced BN pumps with Smart Joint Access (SJA), engineered for the reliable and precise transfer of abrasive, corrosive, and chemical media in mining and construction. Designed for rock blasting, the pump features a large inspection opening for quick joint checks, a compact footprint for mobile or skid-mounted installations, and flexible drive and material options for consistent performance and uptime.

“Operators can inspect joints quickly and rely on precise pumping of shear-sensitive and abrasive emulsions,” said Magalie Levray, Global Business Development Manager Mining at SEEPEX. “This is particularly critical in rock blasting, where every borehole counts for productivity.” Industry Context

Rock blasting is essential for extracting hard rock and shaping safe excavation profiles in mining and construction. Accurate and consistent loading of explosive emulsions ensures controlled fragmentation, protects personnel, and maximizes productivity. Even minor deviations in pumping can cause delays or reduce product quality. BN pumps with SJA support routine maintenance and pre-operation checks by allowing fast verification of joint integrity, enabling more efficient operations.

Always Inspection Ready

Smart Joint Access is designed for inspection-friendly operations. The large inspection opening in the suction housing provides direct access to both joints, enabling rapid pre-operation checks while maintaining high operational reliability. Technicians can assess joint condition quickly, supporting continuous, reliable operation.

Key Features

  • Compact Footprint: Fits truck-mounted mobile units, skid-mounted systems, and factory installations.
  • Flexible Drive Options: Compact hydraulic drive or electric drive configurations.
  • Hydraulic Efficiency: Low-displacement design reduces oil requirements and supports low total cost of ownership.
  • Equal Wall Stator Design: Ensures high-pressure performance in a compact footprint.
  • Material Flexibility: Stainless steel or steel housings, chrome-plated rotors, and stators in NBR, EPDM, or FKM.

Operators benefit from shorter inspection cycles, reliable dosing, seamless integration, and fast delivery through framework agreements, helping to maintain uptime in critical rock blasting processes.

Applications – Optimized for Rock Blasting

BN pumps with SJA are designed for mining, tunneling, quarrying, civil works, dam construction, and other sectors requiring precise handling of abrasive or chemical media. They provide robust performance while enabling fast, reliable inspection and maintenance.With SJA, operators can quickly access both joints without disassembly, ensuring emulsions are transferred accurately and consistently. This reduces downtime, preserves product integrity, and supports uniform dosing across multiple bore holes.

With the Smart Joint Access inspection opening, operators can quickly access and assess the condition of both joints without disassembly, enabling immediate verification of pump readiness prior to blast hole loading. This allows operators to confirm that emulsions are transferred accurately and consistently, protecting personnel, minimizing product degradation, and maintaining uniform dosing across multiple bore holes.

The combination of equal wall stator design, compact integration, flexible drives, and progressive cavity pump technology ensures continuous, reliable operation even in space-limited, high-pressure environments.

From Inspection to Operation

A leading explosives provider implemented BN pumps with SJA in open pit and underground operations. By replacing legacy pumps, inspection cycles were significantly shortened, allowing crews to complete pre-operation checks and return mobile units to productive work faster. Direct joint access through SJA enabled immediate verification, consistent emulsion dosing, and reduced downtime caused by joint-related deviations.

“The inspection opening gives immediate confidence that each joint is secure before proceeding to bore holes,” said a site technician. “It allows us to act quickly, keeping blasting schedules on track.”

Framework agreements ensured rapid pump supply and minimal downtime, supporting multi-site operations across continents

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Concrete

Digital process control is transforming grinding

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Satish Maheshwari, Chief Manufacturing Officer, Shree Cement, delves into how digital intelligence is transforming cement grinding into a predictive, stable, and energy-efficient operation.

Grinding sits at the heart of cement manufacturing, accounting for the largest share of electrical energy consumption. In this interview, Satish Maheshwari, Chief Manufacturing Officer, Shree Cement, explains how advanced grinding technologies, data-driven optimisation and process intelligence are transforming mill performance, reducing power consumption and supporting the industry’s decarbonisation goals.

How has the grinding process evolved in Indian cement plants to meet rising efficiency and sustainability expectations?
Over the past decade, Indian cement plants have seen a clear evolution in grinding technology, moving from conventional open-circuit ball mills to high-efficiency closed-circuit systems, Roller Press–Ball Mill combinations and Vertical Roller Mills (VRMs). This shift has been supported by advances in separator design, improved wear-resistant materials, and the growing use of digital process automation. As a result, grinding units today operate as highly controlled manufacturing systems where real-time data, process intelligence and efficient separation work together to deliver stable and predictable performance.
From a sustainability perspective, these developments directly reduce specific power consumption, improve equipment reliability and lower the carbon footprint per tonne of cement produced.

How critical is grinding optimisation in reducing specific power consumption across ball mills and VRMs?
Grinding is the largest consumer of electrical energy in a cement plant, which makes optimisation one of the most effective levers for improving energy efficiency. In ball mill systems, optimisation through correct media selection, charge design, diaphragm configuration, ventilation management and separator tuning can typically deliver power savings of 5 per cent to 8 per cent. In VRMs, fine-tuning airflow balance, grinding pressure, nozzle ring settings, and circulating load can unlock energy reductions in the range of 8 per cent to 12 per cent. Across both systems, sustained operation under stable conditions is critical. Consistency in mill loading and operating parameters improves quality control, reduces wear, and enables long-term energy efficiency, making stability a key operational KPI.

What challenges arise in maintaining consistent cement quality when using alternative raw materials and blended compositions?
The increased use of alternative raw materials and supplementary cementitious materials (SCM) introduces variability in chemistry, moisture, hardness, and loss on ignition. This variability makes it more challenging to maintain consistent fineness, particle size distribution, throughput and downstream performance parameters such as setting time, strength development and workability.
As clinker substitution levels rise, grinding precision becomes increasingly important. Even small improvements in consistency enable higher SCM utilisation without compromising cement performance.
Addressing these challenges requires stronger feed homogenisation, real-time quality monitoring and dynamic adjustment of grinding parameters so that output quality remains stable despite changing input characteristics.

How is digital process control changing the way grinding performance is optimised?
Digital process control is transforming grinding from an operator-dependent activity into a predictive, model-driven operation. Technologies such as online particle size and residue analysers, AI-based optimisation platforms, digital twins for VRMs and Roller Press systems, and advanced process control solutions are redefining how performance is managed.
At the same time, workforce roles are evolving. Operators are increasingly focused on interpreting data trends through digital dashboards and responding proactively rather than relying on manual interventions. Together, these tools improve mill stability, enable faster response to disturbances, maintain consistent fineness, and reduce specific energy consumption while minimising manual effort.

How do you see grinding technologies supporting the industry’s low-clinker and decarbonisation goals?
Modern grinding technologies are central to the industry’s decarbonisation efforts. They enable higher incorporation of SCMs such as fly ash, slag, and limestone, improve particle fineness and reactivity, and reduce overall power consumption. Efficient grinding makes it possible to maintain consistent cement quality at lower clinker factors. Every improvement in energy intensity and particle engineering directly contributes to lower CO2 emissions.
As India moves toward low-carbon construction, precision grinding will remain a foundational capability for delivering sustainable, high-performance cement aligned with national and global climate objectives.

How much potential does grinding optimisation hold for immediate energy
and cost savings?
The potential for near-term savings is substantial. Without major capital investment, most plants can achieve 5 per cent to 15 per cent power reduction through measures such as improving separator efficiency, optimising ventilation, refining media grading, and fine-tuning operating parameters.
With continued capacity expansion across India, advanced optimisation tools will help ensure that productivity gains are not matched by proportional increases in energy demand. Given current power costs, this translates into direct and measurable financial benefits, making grinding optimisation one of the fastest-payback operational initiatives available to cement manufacturers today.

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Concrete

Refractory demands in our kiln have changed

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Radha Singh, Senior Manager (P&Q), Shree Digvijay Cement, points out why performance, predictability and life-cycle value now matter more than routine replacement in cement kilns.

As Indian cement plants push for higher throughput, increased alternative fuel usage and tighter shutdown cycles, refractory performance in kilns and pyro-processing systems is under growing pressure. In this interview, Radha Singh, Senior Manager (P&Q), Shree Digvijay Cement, shares how refractory demands have evolved on the ground and how smarter digital monitoring is improving kiln stability, uptime and clinker quality.

How have refractory demands changed in your kiln and pyro-processing line over the last five years?
Over the last five years, refractory demands in our kiln and pyro line have changed. Earlier, the focus was mostly on standard grades and routine shutdown-based replacement. But now, because of higher production loads, more alternative fuels and raw materials (AFR) usage and greater temperature variation, the expectation from refractory has increased.
In our own case, the current kiln refractory has already completed around 1.5 years, which itself shows how much more we now rely on materials that can handle thermal shock, alkali attack and coating fluctuations. We have moved towards more stable, high-performance linings so that we don’t have to enter the kiln frequently for repairs.
Overall, the shift has been from just ‘installation and run’ to selecting refractories that give longer life, better coating behaviour and more predictable performance under tougher operating conditions.

What are the biggest refractory challenges in the preheater, calciner and cooler zones?
• Preheater: Coating instability, chloride/sulphur cycles and brick erosion.
• Calciner: AFR firing, thermal shock and alkali infiltration.
• Cooler: Severe abrasion, red-river formation and mechanical stress on linings.
Overall, the biggest challenge is maintaining lining stability under highly variable operating conditions.

How do you evaluate and select refractory partners for long-term performance?
In real plant conditions, we don’t select a refractory partner just by looking at price. First, we see their past performance in similar kilns and whether their material has actually survived our operating conditions. We also check how strong their technical support is during shutdowns, because installation quality matters as much as the material itself.
Another key point is how quickly they respond during breakdowns or hot spots. A good partner should be available on short notice. We also look at their failure analysis capability, whether they can explain why a lining failed and suggest improvements.
On top of this, we review the life they delivered in the last few campaigns, their supply reliability and their willingness to offer plant-specific custom solutions instead of generic grades. Only a partner who supports us throughout the life cycle, which includes selection, installation, monitoring and post-failure analysis, fits our long-term requirement.

Can you share a recent example where better refractory selection improved uptime or clinker quality?
Recently, we upgraded to a high-abrasion basic brick at the kiln outlet. Earlier we had frequent chipping and coating loss. With the new lining, thermal stability improved and the coating became much more stable. As a result, our shutdown interval increased and clinker quality remained more consistent. It had a direct impact on our uptime.

How is increased AFR use affecting refractory behaviour?
Increased AFR use is definitely putting more stress on the refractory. The biggest issue we see daily is the rise in chlorine, alkalis and volatiles, which directly attack the lining, especially in the calciner and kiln inlet. AFR firing is also not as stable as conventional fuel, so we face frequent temperature fluctuations, which cause more thermal shock and small cracks in the lining.
Another real problem is coating instability. Some days the coating builds too fast, other days it suddenly drops, and both conditions impact refractory life. We also notice more dust circulation and buildup inside the calciner whenever the AFR mix changes, which again increases erosion.
Because of these practical issues, we have started relying more on alkali-resistant, low-porosity and better thermal shock–resistant materials to handle the additional stress coming from AFR.

What role does digital monitoring or thermal profiling play in your refractory strategy?
Digital tools like kiln shell scanners, IR imaging and thermal profiling help us detect weakening areas much earlier. This reduces unplanned shutdowns, helps identify hotspots accurately and allows us to replace only the critical sections. Overall, our maintenance has shifted from reactive to predictive, improving lining life significantly.

How do you balance cost, durability and installation speed during refractory shutdowns?
We focus on three points:
• Material quality that suits our thermal profile and chemistry.
• Installation speed, in fast turnarounds, we prefer monolithic.
• Life-cycle cost—the cheapest material is not the most economical. We look at durability, future downtime and total cost of ownership.
This balance ensures reliable performance without unnecessary expenditure.

What refractory or pyro-processing innovations could transform Indian cement operations?
Some promising developments include:
• High-performance, low-porosity and nano-bonded refractories
• Precast modular linings to drastically reduce shutdown time
• AI-driven kiln thermal analytics
• Advanced coating management solutions
• More AFR-compatible refractory mixes

These innovations can significantly improve kiln stability, efficiency and maintenance planning across the industry.

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