Chamber/Box Furnace by Therelek

Therelek’s chamber furnace can operate up to 1800°C. These furnaces are usually rugged, refractory based construction or lightweight ceramic fiberboard and insulation based in construction.


Heating elements could be Ferrous-Alumel-Chromel alloys, nichrome, silicon carbide or molybdenum disilicide depending on the temperature and process; and could be in the form of single or bundled wires, rods, wound coils, strips.

These furnaces can be used for hardening, annealing, normalizing, sintering, tempering, stress relieving, pre-heating etc. The entire range, size and temperature can be determined by your individual need and requirement. Top opening and multi-chamber furnaces are also made to order.

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Features & Specifications

Title Description
Temperature Range Up to 1800°C
Door Design Hinge Type/Vertical Lifting
Insulation Vacuum Formed Ceramic Fibre Boards/Ceramic Fibre Blanket & Module/Refractory Brick Lining
Heating Elements Nichrome Wire/Special Alloy Resistance Heating Wire/Silicon Carbide/Molybdenum Di-Silicide/Molybdenum Wire
Instrumentation options Thyristor, Programmable Temperature Controller, Temperature Recorder, PLC, SCADA, HMI


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Heat Treatment Applications

  • Hardening
  • Tempering
  • Annealing / Annealing under protective atmosphere
  • Isothermal Annealing
  • Post Weld Heat Treatment
  • Stress relieving
  • Wire Annealing
  • Normalizing
  • Carburizing
  • Case Hardening
  • Carbonitriding
  • Decarb Annealing
  • Ferritic Nitro Carburizing
  • Blueing
  • Austempering / Bainitic hardening
  • Austenitizing

Aluminium Applications

  • Solution annealing / Solutionizing
  • Homogenizing
  • Billet Heating
  • Die Heating

Powder Metallurgy Applications

  • Pre-Sintering
  • Sintering
  • Debinding/Delubing/Dewaxing


Other Applications

  • Brazing
  • Mould/Core Heating
  • Calciners
  • Carbonization
  • Laboratory Applications

Why Choose Therelek Engineers?

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.

More about Chamber/Box Furnace


  • Electrically heated
  • Gas Fired


  • Box-type furnaces are quite flexible and can be configured to accommodate production and layout requirements.
  • Furnace should be used to its full capacity to drive maximum advantages
  • Easy installation without any foundation work


What is a Batch Furnace?

A Batch or a chamber furnace is used in numerous production and laboratory applications for thermal processing. The heat treatment is essentially executed in batch process, where the material is loaded to a basket or directly in the furnace and then heat treated. Unlike continuous furnace, the material with lesser to medium volume and custom size equipment are loaded in Chamber Furnaces.

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