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Stress Relieving Furnace for Controlled Heat Treatment

Maharith Thermal Pvt. Ltd. offers a Stress Relieving Furnace that is used to reduce internal stress in metal parts after welding, casting, or machining work. When metal is processed, internal stress can build up, which may lead to cracks or reduced strength over time. This furnace helps solve that issue by heating the material to a controlled temperature and then cooling it slowly in a proper way. This improves the stability and life of the component and is widely used in many engineering and manufacturing industries. As one of the experienced Stress Relieving Furnace manufacturers in India, we build furnaces that are practical and easy to operate.

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Technical Specifications

Insulation

High-density fiber insulation

Chamber Size

Customizable

Operating Temperature

200°C to 750°C (392°F to 1382°F)

Heating Elements

  • Material: Kanthal A-1 or similar
  • Configuration: Resistance wire or strip elements, evenly distributed

Control System

  • Programmable Logic Controller (PLC) interface
  • PID (Proportional-Integral-Derivative) Controller
  • Digital temperature controller with multiple set points

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The heating inside the chamber is kept even so that every part gets proper treatment. We also focus on keeping the system energy-efficient so that industries can manage running costs without affecting performance or output quality. Our Stress Relieving Furnace is designed for regular industrial usage where consistent heat treatment is required. It can be used for different types of metal parts depending on production needs.

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Find Out Features of Stress Relieving Furnace

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Salient Features

  • Gives even heat inside the chamber
  • Heating and cooling can be controlled properly
  • Built with a strong and long-lasting body
  • Works in an energy-saving way
  • Simple control system for easy operation
  • Maintains accurate temperature
  • Designed for low maintenance needs
  • Can run for long hours in industries
  • Proper insulation for heat safety
  • Stable and safe working performance

Applications of Stress Relieving Furnace

Heat treatment of castings
Dehydrogenation of metals
Stress relief of welded structures
Thermal cycling for material testing
Sintering of powdered metals
Normalizing of steel parts
Tempering of hardened components
Hardening of large gears and shafts
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Stress Relieving Furnace for Reliable Industrial Use

The furnace body is strong and made to handle long working hours without frequent issues. It supports uniform heating along with controlled cooling, which is important for achieving proper stress relief in materials. Known as reliable Stress Relieving Furnace suppliers in India, we make sure every unit is properly checked before dispatch. We use standard quality materials and follow proper manufacturing steps to ensure reliability. Our team also studies customer requirements carefully and provides suitable solutions. With this furnace, industries can improve material quality, reduce internal stress, and maintain smooth day-to-day production.

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Frequently Asked Questions (FAQs)

Our welded parts are cracking after stress relief. We followed the temperature settings. What else could be going wrong with the Stress Relieving Furnace?
Temperature is only part of it. If heating or cooling is happening too fast, the material does not get time to adjust and that thermal shock causes cracks. Ramp-up and cool-down rates matter as much as peak temperature. Also check how the parts sit inside the chamber. Uneven distance from the heating elements causes uneven heating. This creates stress in the load even when the overall temperature looks right.
If cracking is happening during the process, the settings are likely the issue. Castings are more sensitive than wrought parts and need slower ramp rates and longer soak times. The PID controller lets you programme this precisely. Start with slower ramp rates than you think you need and adjust from there.
Yes, but check when the others were last replaced. If they are all similar in age, replacing one and leaving old elements in place usually means another fails soon after. Replacing elements in groups is more practical than changing them one at a time.
Start with the insulation. Degraded insulation makes the furnace work harder to hold temperature. Then check the heating elements, since failing elements draw more power than they should. Also check the door seals. Heat escaping through a poor seal is a common cause of higher energy consumption that often gets overlooked.
Use a lower temperature during the soak phase where the material only needs to hold, not climb. Use the ramp-down function during cooling, not the door. Group batches by temperature. Run fuller cycles, not partial ones. The PLC makes scheduling easy.
Quite possibly. Small parts reach temperature faster and can overshoot while large ones are still soaking. If mixing is unavoidable, set the profile around the larger part and accept a longer cycle. Running them separately usually gives better results and wastes less energy overall.
After the cycle, check the parts for any signs of warping or residual distortion. If those appear, the cooling is likely too fast. Controlled slow cooling inside the furnace is always better than opening the door early. Adjust the ramp-down rate on the controller until the parts come out stable and without distortion.
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If you’ve got questions or ideas you would like to share, send a message. For anything more specific, please use one of the addresses listed below.

Office Address

Old No. 2/73, New No. 3/849, Bye Pass Road, Devi Kalyana Madnadapam Complex, Sennerkuppam, Poonamallee Chennai, Tamil Nadu, India – 600056

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+91-9444063455

Email Address

[email protected]

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