About us

Company profile

Over 40 years of established expertise. Over 4500 furnaces, integrated heat treatment systems and solutions delivered so far, worldwide. A distinguished Commercial Heat Treater, with the most stringent quality certifications, an exhaustive process capability range and customer approvals from some of the world's most quality conscious organizations.

By managing and maintaining a state of art heat treatment facility with processes ranging from Hardening to Nitriding, Solutionizing to Vacuum Annealing & Brazing, we as users ourselves build furnaces and integrated heat treatment systems that are built-to-last in construction, easy to maintain and are result-oriented in performance

At Therelek, we make sure the equipment we supply and our heat treatment facility are fine-tuned to the individual needs of our customers, and operate with maximum ease and minimum maintenance as only an experienced furnace manufacturer can ensure. Our products and solutions are not only comprehensive, but complete.

Therelek has been a technology and market leader in the manufacture of High temperature Furnaces, Heat Treatment Systems and Custom Engineered Industrial Heating Solutions. Through the years a series of technology collaborations, R&D efforts and experience in diverse applications and industrial sectors have made Therelek, India’s finest provider of Industrial Heating Solutions.

About us

Why therelek

The answer is simple, Therelek is the best in the business when it comes to custom built furnaces and commercial heat treatment. Customer satisfaction is a guarantee at Therelek.

Through continuous innovation, we have achieved both consistent quality and an impressive clientele across the globe; some of them have been working with us for many years now.

What you avail from us is not just a product but a trustworthy and beneficial vehicle for your success. No matter what the size or sector of your company is, when you work with Therelek, you can be rest assured.

Furnace division

    • Over 40 years of rich experience in Furnace Manufacturing, Servicing and other allied services
    • Always ahead on the technology curve by incorporating the newest innovations into our solutions
    • Cross-functional team of world class Engineers, Metallurgists, Fabricators and Technicians
    • State-of-the-Art R & D Facility, Fully Equipped Materials Sciences Laboratory, Modern Design Tools including CAD, 3-D Modeling, FEA & FMEA
    • Rigorous quality checks, Temperature Uniformity Test, Combustion Analysis, Systems Accuracy Test, Radiation Test and Leak Check Test done on every product
    • On-Demand Service and Assistance
    • Quality emphasis policy – only the best material and manufacturing processes go into the makings of our products.
    • As a Furnace OEM cum end-user, our knowledge base is constantly expanding and we use the same knowledge to continuously improve our products, services and costs to our customer’s advantage.

Heat treatment services


    • Customers’ parts undergo Standardized Practices & Processes which meet the most stringent global standards with approvals from leading organizations across sectors. This differentiator sets us apart in the otherwise unorganized sector that Heat Treatment is.
    • Modern Instrumentation which ensures Complete Batchwise Traceability and Process Accountability.
    • Process Review and Consultancy from best in industry team of metallurgists.
    • Process Simulation and Output Analysis with projected performance data.
    • Exhaustive range of Process Capabilities and the ability & inclination to develop custom processes based on the customer’s needs.
    • Conformity and accreditations to the most stringent global quality standards and norms – NADCAP, AS9100, ISO 9001, ISO 14001.
    • Dedicated service teams ensure there is no unforeseen downtime, hence no disruption of the customer’s schedules.
    • As a Furnace OEM cum end-user, our knowledge base is constantly expanding and we use the same knowledge to continuously improve our products, services and costs to the customer’s advantage.
About us

Therelek figures

Repeat clients
Years of expertise
Quality certification & customers accreditations
Integrated heating systems & solutions provided