Car-bottom furnaces

Pyradia has developed a car bottom furnace for intense and continuous use that is highly reliable, energy efficient and cost-effective. These car bottom furnaces incorporate high grade insulation, finest control systems and rugged construction. The car bottom series is ideal for the heat treatment of aluminum, steel and stainless steel alloys and has a maximum temperature of 2200°F (1200°C). Due to the wide range of temperatures it can reach, this furnace can be used for a multitude of different thermal processes.

This high temperature industrial furnace is perfect for heavy products as it can take up to 150 tons. The products are loaded onto a car on wheels thus facilitating the charging of heavy parts.The car bottom furnace is also an ideal choice for the heat treatment of long length parts such as tubing, bars, slabs and ingots. This model is available with a guillotine door configuration mounted on vertical tracks. The furnace meets the following equipment quality and safety standards: ASTM, SAE, AMS, CQI-9 and NFPA.


As with all our ovens and furnaces, this model provides an excellent temperature uniformity. The pulse firing technology can be integrated as an option and will allow you to achieve even greater temperature uniformity, process control and energy savings.


Pyradia custom designs and builds the car bottom furnace to meet your specific requirements and needs. Contact us to find out how we can find the perfect solution that meets your heat treating needs.



  • Step forging
  • Ageing
  • Annealing
  • Austempering
  • Hardening
  • Normalizing
  • Preheating
  • Solution treating
  • Stress relieving
  • Tempering

Car bottom features:

  • Up to 150 metric ton capacity
  • Uniformity of +/- 10oF if requested
  • Gas or electric
  • Furnace shell made of thick steel plates, welded to structural units
  • Cold cars
  • PLC controls (AB and Siemens)
  • Ceramic fibre insulation

Key Features :

  • Highly energy efficient
  • Life durability
  • Extra air-tight for optimum uniformity
  • Lowest maintenance cost
  • Up 2200°F (1200°C)