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Moisture measurement in bulk solids including RMC

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Time Domain Refractometry (TDR) is a method used to measure the dielectric constant (water content) of a material. Metal conductors or rods are used as wave guides for the transmission of the TDR-signal. The device generates a high-frequency-pulse (up to 1GHz) which propagates along the wave guides at the speed near to light, generating an electromagnetic field around the probe. At the end of the wave guides, the pulse is reflected to its source. The resulting transit time from picoseconds to nanoseconds and dielectric constant provide an accurate measurement of moisture content. The moisture content is calculated inside the device and is available at standard analogue outputs.

IMKO, a German company, which part of the Endress+Hauser Group has developed a patented measuring method called TRIME® TDR method. With this technology it is possible to measure the transit time with a resolution of 3 picoseconds. The TRIME® TDR method has been successfully used more than 30 years in the process industry.

The TRIME® TDR -technique has an ideal measuring frequency between 600MHz and 1.2GHz and the measuring field penetrates deep into the material. The electromagnetic pulses generated in the TRIME device are high enough and constant for good resolution and accuracy of measurement. In addition, disturbing influences such as electrical conductivity have nearly no effect. Precise moisture can be measured in temperatures up to 120°C. TRIME® TDR technology is used in Solitrend product which helps to increase product quality and reduce energy efforts due to precise moisture measurement.

The senor used in Solitrend is in direct contact with the material. Calibration is a simple linear equation. Measurement field adapts itself to the shape of material and is quite large. It is also undisturbed by dripping water, air and dirt. The probes are extremely rugged for exceptionally long operational life. It also replaces time consuming lab analysis and manual sampling with continuous online measurement.

Both In line as well as portable probes measurements are available.

Application

l The building industry. Moisture measurement in Ready Mix Concrete.

l In line moisture content measurement in bulk material or goods like wood chips, pellets, animal food etc.

l The glass and ceramics industry like silica sand, moulding sand, ceramics mass.

l Food Industry. Malting plants, Corn, Sludge drying, Fluid bed dryers (inlet/outlet).

Limitations of other methods

Capacitance method – This method works with single measuring frequencies between 5-80MHz. The dielectric constant is influenced both by moisture and salinity. It is very difficult to distinguish between the two influences and precise moisture measurements are difficult to achieve.

Microwave method – The frequencies of microwave techniques are generally higher than 2GHz. This technique leads to loss in resolution and accuracy of measurement having negative influence on the readings.

Conductance or Resistance method – This method have very low measuring frequencies of about 4kHz. There is a strong influence of different salinity of the bulk material on the measurement. The difference in salinity is caused by different mineral contents temperature. Another problem of resistance method is the low penetration depth of the measuring field.

Near-Infrared method (NIR)-This method shows a very lower penetration depth and, therefore, considerable influences of material surface and thickness.

Scan the QR code for more information or write to us on info.in.sc@endress.com.

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Shalimar Paints Launches New Durable Luxury Interior and Exterior Range

Three new products focus on longevity, aesthetics and sustainability

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Shalimar Paints has introduced three additions to its portfolio: Hero Insignia Luxury Interior Emulsion, Superlac PU Gloss Enamel and Hero Weather Guard 12 Luxury Exterior Emulsion. The new range is designed to combine finish, durability and environmental responsibility for modern residential spaces.
Hero Insignia is a water-based luxury interior emulsion formulated with hybrid binder technology, providing a silky finish, stain resistance and protection from scuff marks. It offers more than 2,000 colour options, a 10-year promise and zero VOC levels, and can be applied on plaster, concrete and masonry surfaces.
Hero Weather Guard 12 is engineered for outdoor protection, using adaptive polymer technology to withstand rain, humidity, heat and dust. The anti-fungal and anti-microbial formula aims to maintain exterior walls in harsh conditions, backed by a 12-year performance warranty.
Superlac PU Gloss is a polyurethane-based enamel offering a high-gloss finish for wood and metal, with resistance to scratches, stains and UV exposure. Suitable for internal and external use, it is designed for doors, windows and decorative surfaces, and comes with a two-year promise.
Commenting on the launch, Mr. Kuldip Raina, MD & CEO, Shalimar Paints, said the new portfolio is intended to deliver durability and elegance for interior and exterior surfaces, giving homeowners and professionals finishes that last.

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India’s Steel Imports Drop 34 Per Cent, Exports Jump 25 Per Cent In April–October

Domestic output stays strong despite market softness

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India’s finished steel imports fell 34.1 per cent year-on-year to 2.5 million tonnes in the first seven months of the financial year, government data shows. Despite this decline, the country — the world’s second-largest crude steel producer — remained a net importer of finished steel between April and October. The fall in imports occurred alongside a 7.4 per cent rise in domestic consumption, which reached 92.2 million tonnes.

South Korea was the biggest supplier during the period, exporting 1.4 million tonnes of finished steel to India. It was followed by China, Japan and Russia. Although overall imports fell, the figures underline the steady inflow of foreign steel into the Indian market.

Domestic production remained firm. India produced 91.6 million tonnes of finished steel in April–October, while crude steel output stood at 95.7 million tonnes, highlighting the resilience and scale of the sector despite import competition.

In contrast to the import trend, India’s finished steel exports rose sharply by 25.3 per cent year-on-year to 3.5 million tonnes. Italy and Belgium were the biggest European buyers, followed by Spain, reflecting strong international demand for Indian steel in select markets.

The government report noted that domestic steel prices were under pressure due to subdued demand and high supply. Trading activity also slowed during the festive season, adding strain on smaller steel producers.

The combined trend of lower imports, higher exports and rising domestic consumption presents a mixed picture for the steel industry, which is managing both domestic market softness and shifting global trade dynamics.

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Stainless Academy To Train 5 Lakh MSMEs By 2030

Initiative to boost skills and strengthen stainless steel sector.

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Stainless Academy, aligned with national programmes such as Make in India and Skill India, has announced plans to reach more than 5 lakh Micro, Small and Medium Enterprises (MSMEs) across the country. The initiative aims to equip students, young professionals and MSMEs, including fabricators, with category awareness and future-ready skills to strengthen the value chain and drive sustainable industrial growth.

Since its launch, Stainless Academy has trained over 60,000 MSME fabricators, educated around 9,000 students across engineering and polytechnic colleges through specialised programmes, and conducted multiple industry sessions to support sectoral development. The academy is associated with Jindal Stainless, India’s largest stainless steel producer.

“In our pursuit of an Atmanirbhar Bharat, building human capital is paramount. The Stainless Academy is our commitment to shaping that future by fostering knowledge, skill and excellence across the value chain. Our goal is not only to prepare a competent workforce but to build an ecosystem that drives India’s industrial growth on the global stage,” said Abhyuday Jindal, Managing Director of Jindal Stainless.

The academy collaborates with leading academic institutions such as IITs, NITs and polytechnic colleges to offer specialised courses, ensuring a future-ready talent pipeline and a smoother student transition into the workforce. A recent example is the company’s MoU with Gati Shakti Vishwavidyalaya, Vadodara, for advanced research, teaching and training in stainless steel applications, under which classes began earlier this month.

The programme intends to train over 5 lakh MSMEs by 2030, expanding across major stainless steel clusters in Gujarat, Haryana, Delhi-NCR, Maharashtra, Bihar, Tamil Nadu, Odisha, Jharkhand, Chhattisgarh, Karnataka and West Bengal. By engaging both urban and rural communities, it ensures equitable access to modern skill development. Through its flagship Fabricator Training Programmes, the academy offers grassroots training in fabrication techniques, design and quality standards. Additional downstream industry programmes help enhance workforce capabilities through workshops and classroom-based learning.

“The Stainless Academy aims to nurture a culture of continuous learning and upskilling that keeps pace with new technologies, processes and possibilities. It is not just about training today’s workforce but preparing tomorrow’s,” said Vijay Sharma, Director, Corporate Affairs at Jindal Stainless.

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