Bogie-Hearth Furnaces

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Our Bogie-hearth furnace is often used for heat treatment such as tempering, annealing, soft annealing, normalizing, stress relieving, homogenizing and recrystallization. The chamber of the furnace is insulated with high temperature fiber insulation and mineral wool. The elements are assembled on the sidewalls of the chamber furnace to achieve a high temperature accuracy and easy maintenance.

One or several circulation fans and motor-driven dampers for cooling are assembled on the chamber roof. The motor-driven bottom is built up by insulating and fire resistant bricks. The Bogie-hearth furnace has a pneumatic sealing between chamber and bottom. The door is both liftable and controlled by a pneumatic system, manual with pneumatic locking or permanently fixed on the end of the Bogie-hearth furnace.

All of our Bogie-hearth furnaces are delivered with complete documentation and CE – Certificate according to LVD, EMC and Machinery Directive.

ElectroHeat Sweden AB manufactures a wide range of industrial furnaces and ovens designed and customized to a variety of load sizes, production volumes and material. Our ovens and furnaces are customized to our customers’ needs to improve the efficiency, increase quality and save energy.

Fast delivery and high quality is guaranteed since all construction and production is made in-house in our workshop in Gothenburg, Sweden.

This product can be delivered separately or as a part in a fully automatic furnace line with conveyors and automatic charging equipment to guarantee a high productivity rate.

Technical specification

Temperature range: up to 1200°C

Power Supply: Optional

– Electrical

– Gas

Air circulation:

– Fan Unit (up to 850°C)

– Inlet/outlet dampers (option motor driven)

Dimensions: Customized

Door/Hatch: Optional

– Pneumatic hatch

– Electrical hatch

– Manual door

– Sliding door

Control system: Optional

– Industrial PC Furnblog X5 (touchscreen HMI)

BrainChild Digital Temperature Controller

– PLC (touchscreen HMI)

Atmosphere: Air

Type of logging: Optional

– Digital

– Analog

Number of logged temperature sensors: Optional



Tempering or Annealing with a Bogie-hearth Furnace
Heat treatment has to be gentle and powerful at the same time to make processes like tempering, annealing, homogenizing and recrystallization reliable and easy. Bogie-hearth furnaces promise customers the highest quality possible if used accordingly and have a temperature range of up to 1200°C.

Bogie-hearth furnaces are useful when it comes to fine procedures like soft annealing and are delivering the best results when it comes to normalizing or stress relieving.

It’s important to understand, that in order to achieve optimal heating results, the chamber has to be insulated properly in order to keep a constant high temperature. Accuracy is the key when materials have to be annealed or tempered, therefore the sidewalls of the furnace chamber have been equipped with a high-temperature fiber insulation and mineral wool. This makes Bogie-hearth furnaces not only accurate but also easy to maintain.

At its core, so to speak, and the necessity for the entire cooling process, the furnace combines one or many circulation fans and motor-driven dampers. They are situated on the roof.


Anatomy of a Bogie-hearth furnace
In order to assure safety and a long lifetime of the furnace, the motor-driven bottom is not only built up by insulating but also features fire-resistant bricks. Another important feature, which guarantees safety is the pneumatic sealing between the heating chamber and its bottom. Since the door can be lifted and controlled by a pneumatic system, it helps automatize the process and speed up procedures.


Other benefits of the bogie-hearth furnace are the high rate of efficiency and the possibility to save energy, depending on an either fully electrical or gas power mode. The delivered product will always be high in quality and meet even the highest standards.

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