Tag: rolling mill manufacturers India

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The Steefo Group - Rolling Mill Solutions

 

When we talk about reliable experts in steel forming, the only name that comes to the forefront is The Steefo Group. Our reputation stems from the word steel forming. Our origins are rooted in excellence and superior production, both in national and international export markets. 

The Origins of The Steefo Group 

The Steefo Group has humble beginnings; we started our journey four decades ago in 1976.  With Mr K.K Agarwal laying the foundation of the  Steefo Industries in 1976, starting our first order in 1979 to achieving our first export order in 1991, we have always had an upwards trajectory. The only goal that we had in mind was to provide precision in design and manufacturing and produce superior quality products and turnkey solutions that fit our clients’ expectations and standards. 

We aimed to become the one-stop shop for all steel rolling and melting industries. We have expanded our services and products since 1976, and now we have a group of expert engineers catering to numerous sections of this ever-demanding industry.

The Steefo Group Quality

One thing that we have pledged to maintain and have never compromised on is quality. The name of The Steefo Group is recognised worldwide today because we are consistent in provisioning high-quality products. We hold ourselves to the strictest standard and norms possible to ensure that only products of the highest grade products to our clients. 

We have a dedicated quality assurance team that performs quality checks and rigorous testing from raw materials to the finished products. This is done to ensure that we stay true to the promise of being your reliable steel forming partners. We take a quality-based approach to quality commitment.  

Our Commitment To Innovation 

From its very inception, Steefo has been dedicated to growth and innovation.  We believe that innovation can transform change into new beginnings and fruitful opportunities. Innovation is more than just developing new products but rather producing cohesive design and technology that comply with the constant evolution. Our team of dedicated and experienced design engineers have the vision and talent to delve into undiscovered and uncertain aspects of the world of steel forming to discover and develop new processes, systems, and management methods to positively impact the growth, productivity, and profitability of our clients. 

When you partner with us, you invest in premium grade products and are consistently provided with a workforce that offers the skill to produce the best output in the competitive steel forming market. 

Research and Development

The Steefo Group is known worldwide because of our drive toward developing and improving our R&D and design capabilities. We invest our resources in technical improvements because we know that only development in the field of technology guarantees consistent improvement in our manufacturing speed and product quality. Only the most advanced technology can cater to and match the demands of our varied clients. We utilise software such as CAD and Kissoft and more to procure future-ready equipment that complies with industry 4.0. 

How Has The Steefo Group Solutions Transformed the Steel Rolling Industry?

The Steefo Industry has become synonymous with innovative and unique turnkey solutions that transform rolling mill solutions worldwide. From concept to commissioning of rolling mills and integrated steel plant, we have complete expertise in all aspects of the field. Multiple turnkey projects are supplied with plant equipment and execution, including erection and commissioning to obtain the maximum desired production value. 

1. TMT Bar Rolling Mill 

Steefo Group - TMT bar rolling mill

For The Steefo Group, TMT bar rolling mills have been ingrained in our DNA. Being your one-stop-shop for all your rolling mill solutions, we ensure that we provide our clients with innovative and modern designs in our turnkey solutions. Our expert engineers can handle these projects from concept to commissioning. We constantly customize our products according to the demands and needs of our clients and have production capabilities ranging from 80 TPH to 100 TPH. We ensure that productivity is boosted and ensure faster ROI.

2. Structural Rolling Mill 

The production process in the rolling mill

The Steefo Group is a front runner amongst companies known to produce end-to-end solutions for structural rolling mills. We guarantee that our structural rolling mills have the most incredible performance capacity and shortest downtimes.

3. Wire Rod Mill

Wire rod mill solutions

We have mastered wire rod mills over four decades and have become a trusted name in this industry when it comes to the production of wire rod mills. From cost-effectiveness to flexibility, the growing demand for wire rods is being matched by our support in creating impeccable wire rod mills to allow large production capacities. The Steefo Group creates wire rod mills that are not only high speed but are also capable of rolling themselves into the smaller dimension to increase production rates. 

The Services of The Steefo Group That Sets Them Apart

For anything related to steel, you can trust The Steefo Group. From process analysis to optimization and up-gradation, our skilled engineers are here to help you from start to finish. Our end goal is to drive our clients towards success and profitability. 

1. Product Design and Engineering

As your reliable steel-forming partner, you can trust us as we are equipped with worldwide experience in implementing turnkey solutions. Our technical departments come together to customise the project to your exact requirements. From individual to products to complete solutions, we provide it with all to ensure that our clients do not face any disadvantage in any step of the process. 

2. Spares and Consumables 

We have provided superior customer support and client satisfaction throughout the project lifecycle. We understand how demanding the process is, and that is why we are there every step of the way. We are not only involved in turnkey projects; we also offer spare parts and consumable products to our customers to ensure prolonged service and consistent performance and endurance. 

3. Technical Support and Repairs

The Steefo Group always ensures that the steel plants are always equipped with advanced technology to maintain and raise the bar in terms of quality and production. Our team of engineers works closely to keep an eye on the project until the output production stage to prevent downtime and cost overruns. 

4. Service Agreement Program

Surviving the rapidly evolving steel market is not an easy task. We meet the demands of the evolving market and rapidly proceed to optimise and improve the efficiency and quality of the plant. It includes adopting the best practices and maintaining equipment and machinery pristine and well maintained. Our company provides a complete service program to ensure that your products reach peak performance levels. The entire process involves evaluating equipment and improving them whenever deemed necessary. 

Why Work With The Steefo Group?

Today, The Steefo Group has reached this level of success due to its relentless drive toward excellence and an uncompromising attitude towards quality. We are constantly evolving and trying to improve our current products and solutions, and therefore, we have transformed into the leading innovation in the world of rolling mills. 

When you work with us, you get high-quality products and receive constant support from our team of professionals. Join the world of success. To learn more, call us at +91 98240 76873 or drop us a mail at marketing@thesteefogroup.com. 

 

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Energy Saving Technology of Rolling Mill System

 

The steel industry often earns itself a reputation for being energy-intensive. But with recent developments, there has been an opportunity to transform and walk toward the path of energy efficiency. 

In rolling mills, during the production process, intermediate steel products obtain their shape and dimension because of an array of shaping and finishing techniques. To get their shape, slabs are heated to an extreme temperature in the reheating furnace and are then rolled into shape with hot or cold rolling or in finishing mills. Some products specifically require hot rolling, such as reinforcement bars, steel plates, etc. Some products like steel for cars and white goods require both hot and cold rolling. 

But the energy needs and costs for both hot and cold rolling can be significantly high. Due to the cold rolling process, the mechanical forces create much more force and increase the energy needed. In the hot rolling process, the execution is faster as it consumes less force, but substantial energy costs are incurred to heat the metal to near eutectic temperatures. Data accumulated from large integrated plants show that the hot strip rolling process is the third-largest energy user apart from iron and steel making. 

Reheating Furnaces

Reheating furnaces is critical in determining end-product cost and quality in any hot rolling operation. The energy use in a reheating furnace is determined by several production factors such as stock, steel type, etc., and operational factors such as scheduling and design features. 

Globally, the total primary energy requirement for hot rolling was reported at 2 – 2.4 GJ/t, and global average energy needs in cold rolling are between 1 – 1.4 GJ/t. (IEA 2007). The way to harvest energy savings could be via upgrading existing furnaces.

Rolling Mills Technology And Measures To Be Energy Efficient  

1. Process Control in Hot Strip Mill

To improve indirect energy savings through reduced oxygen rejects, we require improved hot strip mill process control. The main objective is to control and monitor oxygen levels to optimise the combustion rate in the furnace. It also enhances productivity and reduces downtime. We can see results from a system installed at a mill in Belgium, which reduced rejects from 1.5% to 0.2%and decreased downtime from more than 50% of the time to 6%. It also leads to a reduction in CO2 emissions by 15.1kg of CO2/t-rolled steel.

2. Oxygen Level Control and VSDs on Combustion Fans

To optimise combustion in the furnace, controlling oxygen levels and using Variable Speed Drives (VSDs) on combustion air fans on the reheating furnace helps significantly. There is a substantial drop in combustion efficiency with excessive air as it leads to unnecessary waste gases. The fuel to air ratio, therefore, should be monitored regularly. The usage of VSDs on combustion air fans also helps keep the oxygen levels on the reheating furnace under check. 

This process has the potential to reduce emissions by 16.6kg CO2/t-rolled steel. It also calculates energy savings to be around 10% or 0.33 GJ/t-rolled steel by a conservative estimate.

3. Pressure Control for Furnace

There are multiple apertures that heating furnaces have, such as extraction ports, raw material charging ports, cracks in the furnace ceiling, and sidewalls. There can be unnecessary heat losses if the pressure in the furnace is too high, causing the heat to be forced out of the furnace.

Due to this, if the internal pressure drops, cold air will be sucked into the furnace, spiking up the fuel consumption. The furnace pressure control technology’s objective is to maintain a constant optimum pressure level to minimise energy consumption.  It is primarily applicable in cases of industrial furnaces, including rolling mill reheating furnaces. 

4. Regenerative Burners for Reheating Furnace

A regenerative burner is a heat recovery system that recovers the furnace exhaust gas’s waste heat to heat the furnace’s combustion air. Heat reservoirs and dual heat-recovering generators of the regenerative burner are utilised. One side of a burner combusts fuel during combustion while the other accumulates the exhaust heat into the heat-recovering generator. 

The burners then switch so that the one collecting the heat combusts the fuel while the other gathers exhaust heat. The usage of regenerative burners for reheating furnaces can deliver significant energy savings. According to NEDO, using regenerative burners on a 110 t/h capacity billet reheating furnace (operating at 1050 oC) can reduce the energy consumption by 0.18 to 0.21 GJ/t-steel in comparison to a conventional furnace.  Annual energy savings are reported to be 9.3 to 11.6 GWh. There is a scope of up to 50% NOx reduction in high-temperature combustion.  CO2 emissions will also be reduced according to the reduced fuel consumption. 

5. Walking Beam Furnace

If you are looking for state-of-the-art efficient reheating furnaces, you will have to look towards a walking beam furnace. In a walking beam furnace, the stock is located on the stationary ridges. The revolving beams walk the product through the furnace till it reaches the exit, where the beam returns to the entrance.

Compared to the three-pusher-styled furnace, installing a walking beam furnace and an efficient control system reduced energy and fuel consumption by 25% and 37.5%. It also provides lower operational costs compared to alternative transmission systems.

Bottom Line

Energy efficiency is a goal that many industries, including the steel industry. Investing into methods reduces exorbitant energy consumption and saves you from facing cost overruns due to lack of optimization. This step toward energy efficiency is also a step toward a better and greener future as many methods cut down on CO2 emissions and improve productivity.