Controlled Atmosphere. Harder Surfaces. Precision Performance.

Therelek is among the top gas nitriding furnace manufacturers in India, providing state-of-the-art solutions for surface hardening of steel and alloy components. Our gas nitriding furnaces deliver precise nitrogen diffusion through controlled heating and gas atmospheres, enhancing surface hardness, fatigue strength, and wear resistance without distortion. Designed for long service life and accuracy, Therelek’s gas nitriding furnace systems in India are engineered to perform under demanding industrial conditions.

The process involves introducing ammonia gas at specific temperatures, where nitrogen atoms diffuse into the metal surface, creating a hard and corrosion-resistant layer. The advanced temperature and gas control systems ensure consistency across all treated parts. These furnaces are ideal for gears, shafts, crankshafts, dies, and tools used in heavy engineering, automotive, and aerospace industries.

With automated controls, safety interlocks, and efficient insulation, Therelek furnaces guarantee stable operations, low energy consumption, and repeatable metallurgical results. As trusted gas nitriding furnace suppliers in India, Therelek focuses on reliability, performance, and innovation, making our furnaces an essential part of modern industrial furnaces in India for precision heat treatment.

Pit Furnace

Ā The pit-type gas nitriding furnace is best suited for treating long shafts, rods, and cylindrical parts. It provides excellent nitrogen penetration and uniform temperature throughout the chamber. The design ensures efficient gas circulation, minimizing distortion and maximizing surface hardness, making it ideal for precision heat treatment operations.

Types of Pit Type Furnace

Horizontal Gas Nitriding Furnaces with Vacuum

Ā Therelek’s Horizontal Gas Nitriding Furnaces with Vacuum combine the precision of vacuum technology with controlled gas nitriding. This setup minimizes oxidation, ensures better diffusion uniformity, and maintains clean surface finishes. Suitable for complex components and high-volume production, the furnace offers programmable control for temperature, time, and ammonia flow. The advanced insulation system enhances thermal efficiency, while the robust build ensures long operational life. Trusted among industrial furnace manufacturers in India, Therelek delivers technology-driven systems that ensure stable, repeatable, and high-quality nitriding results for automotive, aerospace, and tooling industries.

  • Combines vacuum and nitriding for precise metallurgical control.
  • Ensures oxidation-free, clean component surfaces.
  • Energy-efficient and designed for continuous operations.
  • Ideal for complex shapes and precision components.
  • Fully automated PLC-based operation for consistency.

FAQ's

What are gas nitriding furnaces used for?

They are used to harden the surface of steels and alloys, improving wear resistance, fatigue strength, and corrosion resistance.

Because Therelek provides advanced, energy-efficient systems with precise control, durability, and consistent metallurgical performance.

Yes, designs can be customized for temperature range, chamber size, and automation level based on process needs.

Ā Automotive, aerospace, heavy engineering, tool making, and defense sectors rely on them for precision hardening.

Through high-quality materials, advanced insulation, and smart control systems that ensure uniform heating and minimal energy loss.

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Company address

Headquarters & Factory 1

70-71, III Phase, Peenya Industrial Area, Bengaluru KarnatakaĀ – 560058, India

Manufacturing Unit & Factory 2

No. 279-A, Nelamangala Taluk, Sompura Hobli, Avverahalli Industrial Area, Bengaluru Rural, Karnataka -562111

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