Bogie Hearth Furnace by Therelek

Our standard bogie hearth furnace goes up to 1500°C, however, we make custom designed furnaces for any special requirements. High-temperature applications are sintering, hardening, annealing and normalizing whereas low-temperature applications are tempering and stress relieving.


The control system is provided with options to set and control the ramping rate, soaking rate and cooling rate depending on the process cycle, the option of PLC-based control is also available.

Our Bogie hearth furnace is used in an open atmosphere and also in the controlled atmosphere as per application. Designs are usually in and out bogie (hearth) movement as well as through and through double door bogie movement is provided for an assembly line or process line.

Based on customer requirement, the mode of heating is via electrical heaters, gas-fired or oil-fired burners. These furnaces are energy efficient and it is achieved by efficient sealing to prevent undue heat losses and thyristor power controls to limit current consumption.

Design factors also ensure excellent temperature uniformity throughout the heating chamber so that parts are universally and evenly which are subjected to process parameters and heating cycles. Controlled cooling furnace option is also available.

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Features & Specifications

Title Description
Temperature Range Up to 1500°C
Insulation Vacuum Formed Ceramic Fibre Boards / Ceramic Fibre Blanket & Module / Refractory Brick Lining
Chamber Design Cylindrical / Rectangular
Insulation Ceramic Fibre Blanket + Brick/Ceramic Fibre Module & Board
Heating Media Options Electric/Gas Fired/Oil Fired
Heating Elements Nichrome Wire / Special Alloy Resistance Heating Wire / Silicon Carbide Rod Type
Furnace Classification Class 2/Class 3
Instrumentation options Thyristor, Programmable Temperature Controller, Temperature Recorder, PLC, SCADA, HMI



More about Bogie Hearth Furnace


  • Annealing – It is mainly used for mold annealing, high manganese steel castings, gray iron castings, roller, ball, wear-resistant lining and other parts.
  • Stress Relieving
  • Hardening
  • Tempering
  • Normalising
  • Post Weld Heat Treatment
  • Wire Annealing
  • Isothermal Annealing
  • Case Hardening
  • Blueing
  • Austempering
  • Austenitizing
  • Homogenizing
  • Billet Heating
  • Pre-Sintering
  • Sintering
  • Mould/Core Heating
  • Preheating/Preheating for forging


  • Electrically heated
  • Gas Fired


  • Flexibility of operations
  • Easy and precise movement of heavy loads
  • Low power consumption
  • Excellent Temperature uniformity
  • High-performance reliability
  • Support frame will be made of refractory material or heat resistant steel

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.


What is Bogie Hearth Furnace?

Bogie Hearth Furnace is a special type of chamber furnace. The housing of the furnace can be accessed from one side through a manually or electrically operated moving trolley coupled to a door system.
The trolley or bogie can be designed with virtually any product-specific supports or component tracks. In addition, the loading capacity is almost unlimited.

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