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21-km cross-country belt conveyor for Heidelberg Cement, Damoh

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The EPC contract for India?s longest Overland Belt Conveyor (OLBC) system to Heidelberg Cement is another significant milestone in Macmet?s list of achievements.

In 2010 Macmet, against stiff competition from L&T, FL Schmidt, Sinoma International Engineering Co bagged the turnkey contract from Heidelberg Cement for design, engineering, manufacture, supply of equipment, Civil & Structural Construction and Erection of Plant/Machinery for a 21 km long Overland Belt Conveyor system for transporting Limestone from Patharia Quarry to Narsingarh Clinkerization Unit, for the Diamond Cements Plant at Damoh.

The OLBC commissioned for Heidelberg Cement consists of six flights of conveyors, totaling to 20,790 meters. Four flights connect the mine to the Bunker. From the bunker, one flight goes to the Plant and another flight goes to the stockyard. The six flights measure 640 meters, 9800 meters, 8150 meters, 1600 meters, 475 meters and 125 meters (total 20,790 meters). The 1000 mm wide belt conveyor has been designed to transport limestone at an average speed of 4.0 meters/second from the quarry to the plant. The capacity of this conveyor system is 1000 TPH. On its way to the Plant, the conveyor crosses several villages and roads as well as the Sonar River (spanning a width of 120 meters at the cross over).

The conveyor accessories supplied include apron feeders, bag filter with fan, compressors, motorized diverter, Pin/Rod Gate, Magnetic Separator, Metal Detector and Belt Weigher. The electrics include 33KV Substations, Transformers, 690V Voltage Variable Frequency Panels with 690V/350kW Motors controlled by a PLC Automation System.

Macmet undertook the civil work, constructing 890 nos. RCC columns, the maximum height of which was 23 meters at the Sonar River. 4 sub-stations (18,280 cubic meter) as well as a Hopper of 2020 cubic meters were built. The Civil RCC work (including sub-station buildings, bunker, trestle columns and foundations etc.) was completed in one year from November, 2010 to October 2011.

Macmet also completed Structural Fabrication and Erection work of 903 Girders (the maximum span being 47 meters), 61 nos. Trestles (maximum height being 37 meters). The 6025 Ton Fabrication and erection of structural steel work (including transfer houses, gallery, girders, trestles, etc.) was completed in one year from June 2011 to May 2012. About 3300 Tons of mechanical equipment and electrical equipment was also erected.

The 21 km conveyor system passes through several densely populated villages. There was scarcity of water (a significant hurdle for civil construction) and only a single ?kutcha? road running along the route of the conveyor system, which made movement of men and material very difficult. Macmet had to tread the tightrope of handling disgruntled local populace and completing the work within schedule. Land disputes were settled by our interaction with the local villagers and the help of Heidelberg Cement and local Administration Officials.

We gained the confidence of the local people through regular interactions and by conducting social work such as education, provision of drinking water, renovation of places of worship, etc.. Macmet also educated local labour to work in line with safety protocols. We are proud to say that the work was completed without any major mishap and Macmet was awarded the Certificate for conducting work safely. Erection was completed in December 2012 and operation of the 21 km OBLC for Heidelberg Cement commenced in January 2013. Macmet has also been awarded the maintenance contract for the system. The 21 km Overland Belt Conveyor System supplied by Macmet to Heidelberg Cement at Damoh continues to perform satisfactorily since commencement of its operation in 2013. Macmet also has been awarded job for maintenance of the conveyor.

Macmet, an ISO 9001:2008, ISO 14001:2004, OHSAS 18001:2007 certified company, supplies Bulk Material Handling systems and Intake Screening equipment to Cement, Power, Steel and Mining companies in India and abroad.

Macmet is a leading supplier of Troughed Overland Belt Conveyors and Pipe Conveyors in India. Pipe Conveyors provide an environmental friendly solution for conveying bulk material with zero spillage. Macmet has the maximum number of references for Pipe Conveyors in India. Macmet has supplied Asia?s longest Pipe Conveyor (7 km) to Jindal Power Plant at Raigarh. We have also supplied one of the world?s highest capacity, fastest Pipe Conveyors to Gayatri Projects Ltd. for carrying coal between port and Plant End of TPCIL?s 4 x 660 MW Thermal Power Plant of TPCIL at Krishnapatnam, Nellore, Andhra Pradesh.

Macmet also manufactures screening equipment to remove debris, weeds, branches, grass, fish, etc. from water sourced from rivers, lakes and oceans by Power Plants. Macmet has commissioned India?s largest intake system for Coastal Gujarat Power Ltd. and the country?s second largest intake system for Nuclear Power Corporation of India at Tarapur. Intake screening equipment manufactured by Macmet is in operation in over 15 countries worldwide.

Macmet has modern engineering & manufacturing facilities and a firm commitment to quality assurance and customer satisfaction. The company is headquartered in Kolkata with engineering offices at Kolkata, New Delhi and Bangalore. The manufacturing works are located at Kolkata.

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Concrete

PROMECON introduces infrared-based tertiary air measurement system for cement kilns

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The new solution promisescontinuous, real-time tertiary air flow measurement in cement plant operations.

PROMECON GmbH has launched the McON IR Compact, an infrared-based measuring system designed to deliver continuous, real-time tertiary air flow measurement in cement plant operations. The system addresses the longstanding process control challenge of accurate tertiary air monitoring under extreme kiln conditions. It uses patented infrared time-of-flight measurement technology that operates without calibration or maintenance intervention.

Precise tertiary air measurement is a critical requirement for stable rotary kiln operation. The McON IR Compact is engineered to function reliably at temperatures up to 1,200°C and in the presence of abrasive clinker dust. Its vector-based digital measurement architecture ensures that readings remain unaffected by swirl, dust deposits or drift. Due to these conditions conventional measurement systems in pyroprocess environments are often compromised.

The system is fully non-intrusive and requires no K-factors, recalibration or periodic readjustment, enabling years of uninterrupted operation. This design directly supports plant availability and reduces the maintenance overhead typically associated with process instrumentation in high-temperature zones.

PROMECON has deployed the McON IR Compact at multiple cement facilities, including Warta Cement in Poland. Plant operators report that the system has aided in identifying blockages, optimising purging cycles for gas burners, and supplying accurate flow data for AI-based process optimisation programmes. The practical outcomes include more stable kiln operation, improved process control, and earlier detection of process disturbances.

On the energy side, real-time tertiary air data enables reduction in induced draft fan load and helps flatten process oscillations across the pyroprocess. This translates to lower fuel and energy consumption, fewer unplanned shutdowns, and a measurable reduction in NOx peaks. This directly reflects on the downstream cost implications for plants operating SCR or SNCR systems for emissions compliance.

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Concrete

Adani Group To Set Up Cement Factory In Madhya Pradesh

Chief Minister Mohan Yadav inaugurates plant in Guna

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Adani Group (Adani) will set up a cement factory in Madhya Pradesh, the chief minister of the state announced after an inauguration ceremony in Guna. The chief minister, Mohan Yadav, described the occasion as a historic day for the state and said the project will strengthen industrial capacity. The event was presented as a milestone in efforts to broaden manufacturing and attract large-scale investment. Officials said the facility will add to regional production capability and support related industries.

State officials outlined that the plant will enhance supply chains for construction and infrastructure projects across the region. The company will bring technical expertise and logistical resources to the site, with government agencies coordinating approvals and land allocation. Local suppliers and service providers will benefit from increased demand, and training initiatives will be developed to build workforce readiness. Officials indicated that the project complements broader plans to modernise industrial clusters in the state.

The state administration said it has facilitated clearances and infrastructure support to accelerate implementation. Local officials have coordinated with the company to ensure connectivity and utilities are in place ahead of commissioning. The chief minister emphasised that collaboration between private investors and the government aims to create sustainable economic growth. Community outreach programmes will address local concerns and establish grievance mechanisms as construction proceeds.

Officials said the inauguration in Guna marks a new phase in the state industrial story and will serve as a reference for future investments. Administrators noted that close monitoring and periodic reviews will guide timely execution and adherence to environmental and safety norms. The government affirmed its commitment to facilitating responsible industrial expansion while ensuring benefits reach local communities. Stakeholders will continue discussions on supply chain integration and long term maintenance arrangements.

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Concrete

Railways Boost Cement Movement by 170 Per Cent and Eye Fly Ash

New container wagons cut costs and speed turnaround

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Indian Railways has recorded a 170 per cent rise in cement movement in the last four months after reforms launched in November to promote rail based bulk cement logistics. The Union Railway Minister, Ashwini Vaishnaw, reviewed the container sector reforms and their implementation and described the shift as improving plant to market efficiency. The reforms introduced customised bulk cement tank containers and a bulk cement terminal policy to support multimodal handling and door to door solutions.

The new system has simplified loading and unloading by enabling mechanised operations and by reducing package losses compared with bagged cement transport. Since cement can move directly from manufacturing centres to consumption centres in standardised tank containers compatible with Ready Mix Concrete machines, two stages of handling have been eliminated and material loss has been reduced. The standard shape of the containers facilitates faster turnaround and lowers logistics costs for suppliers and builders.

The improved freight turnaround is helping to lower the delivered cost of cement, which can ease pressure on housing costs for the poor and middle class and support affordable construction. The reform is said to be environment friendly as dust generation during material transfer has fallen and fuel consumption and emissions have reduced due to modal shift from road to rail. The Make in India tank containers are designed for seamless movement between train and trailer and to enable efficient door to door movement while cutting congestion on roads.

Building on the cement reforms, officials were urged to tap the fly ash transportation market to convert industrial waste into national wealth. The minister noted that nearly 300 million metric tonnes (mn t) of fly ash is produced in the country while only about 13 million t is transported by rail and asked officials to substantially increase Railways share to serve brick kilns, cement industries and construction sites. Wider utilisation of fly ash should reduce pollution, promote recycling and lower construction material costs while strengthening sustainable freight movement across infrastructure sectors.

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