CALDERYS Expertise in Ferro-Alloy

Calderys India has over two decades of experience in the Ferro-Alloy industry in India. We have product range to cater to the requirements of sinter plants, Sub merged arc furnaces, ladle etc for a ferro alloy plant. Our products Whytheats, Accmons, Tabcast, are popular brands in the industry. We are regular supplier to Outokumpu designed plants. We have played role of dependable partner with Ferro Alloys plant in India by assisting them in performance improvements by proposing relevant products and solutions. Calderys India has been catering to the requirements of monolithics and precast shapes. Our castables have improved equipment performance thereby improving plant productivity.

We have expertise in designing refractory lining for sinter plants. Our designs and products are time tested and last for years. We are a leading designer and supplier for Outokumpu designed Sinter Plants in India. We maintain close partnerships with furnace engineering companies and customers and work with them on Refractory improvements.

Subsequent to joining hands with Calderys, we have access to their product range and expertise. Calderys is a world leader in refractory solutions for Ferro Alloy industry. They have over 30 years of successful experience in meeting requirements of Ferro Alloy industry globally.

Calderys has innovative monolithic products and design solutions which safeguard profitability thanks to regular operating conditions, reduced downtime, and longer repair cycles. Calderys worldwide presence allows them to offer the most suitable and cost effective technical solutions that will contribute to our customer's productivity and efficiency.

With local experience and Calderys global expertise, Calderys India has the capability to offer refractory solutions for all aspects of the Ferro-Alloy industry including:

  • Sinter plants
  • Pre heaters
  • Furnace roofs and ducting
  • Feed chutes
  • Ladles
  • Launders
  • Tap hole repairs
  • Tap hole clays
  • Furnace revamping

Products & Applications

Our comprehensive range of products for Ferro-Alloy making is composed of alumina, carbon, and silicon carbide based products. It includes dense castables, self-flowing castables, dry gunning and shotcreting materials, ramming and plastic mixes, dry vibrating mixes, injection and grouting products, tap-hole clays and prefabricated shapes. Our innovation process is based on a world class R&D team, coupled with all of the Ferro-Alloy making dedicated employees, which designs customized solutions in anticipation of future needs. Personalized training programs are also organized in our plants and contribute to a closer co-operation with our customers.

Sinter Plants

Sinter Plants
Sinter Plants

We have vast experience in the installation of refractory solutions for Sinter Plants throughout India and in South Africa through Calderys. Our installation teams perform repair work where necessary and make use of our latest technology, and installation, methods—which results in longer refractory life and less downtime.


With the latest new equipment and skilled labor, we build a number of pre-heater linings and also perform repair work where necessary.

Furnace roof and ducting

Our development and installation teams have installed furnace roofs and ducting onsite as well as on our premises. Using our extremely efficient drying-out equipment and skilled labor, some customers prefer to do the unit installation at our premises and transport it back to their facility. We continue to develop better refractory materials for these installations and improve the installation procedure.

Feed Chutes

Feed Chutes
Feed Chutes

In the last 5 years, we have developed a very high abrasive material as an inner wear lining for the feed chutes, resulting in longer life and more cost effectiveness.


Because it is in our interest to obtain excellent performing ladles with an extended life, our teams work daily on improvements that will enable us to set better cost per ton of hot metal ratios. It is therefore important for us to make use of good performing products, reliable equipment, and skilled labor with supervision.

Tapping Launders

There are many different types of launders which vary from plant to plant, so we work very closely with people in the plants to install the best refractory material.

Taphole repairs

It is necessary from time to time to repair the taphole area. The tapblock and a small amount of bricks surrounding the block have to be broken out with the latest breaking equipment and then re-installed. We are well-equipped to provide you with any kind of taphole repair solution.

Tap hole clay

Calderys India, through Calderys has a variety of clays, including environmentally friendly clay, to suit the customer's specific needs in terms of function and reliability. We work closely with the customer to establish the most effective method and alteration between the standard and re-constructive clays.

Installation, Commissioning and Turnkey Maintenance

With specialized technical support, including refractory and ferro-alloy making process knowledge, our experienced supervisors and installers provide expert technical guidance and the best suited installation equipment to ensure the best refractory performance during its service.

We employ dedicated skilled staff and the latest advances in refractory installation equipment. This can be applied to large, small, and turnkey projects alike depending on the requirement. Alternatively, we can support the customer's own staff by supervision, job management, equipment, and also direct training.

Our aim is to ensure the best installation and dry-out of refractory to ensure its best performance during its service. Once in service, the refractory may require specific maintenance which again can be supplied depending on the customer requirements. In some cases, and depending on the situation, services may be available 24 hours per day, 7 days per week, ensuring minimum downtime for the customer—especially in times of unplanned emergencies

Turnkey new Projects

Our engineering teams, dedicated to the Ferro-Alloy industry, help customers meet a wide range of needs such as: refractory lining design, heat transfer calculation, job quotation, installation, dry-out and start-up/operating instructions & planning.

Calderys India is often consulted in the development of a technical solution. Familiar with the specific processes of each customer, we are able to engineer a refractory solution, provide project management services, and advise on the proper installation techniques for new projects. We have an excellent reputation for providing reliable solutions and thus have created many long-lasting relationships with our customers. Our strategic partnership with the customer ensures that we develop market-oriented solutions.

Due to our decades of our experience in the Ferro Alloys segment coupled with coupled with Calderys expertise , Calderys India has the capability to become your integrated refractory partner to meet all the needs including solution providing, handling refractories design to implementation.

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