RT4 series Car Bottom Furnace / Bogie Hearth Furnace is the main product of HKFurnace company. It is synchronized with the international advanced industricial furnace technology. are ideal for a variety of thermal treatments including stress relieving, annealing, austenitizing, normalizing, quenching.

Bogie Hearth Furnace / Car Bottom furnace

Bogie Hearth Furnace (Car Bottom Furnace) are HKFurnace's core business. We provide industrial furnaces in custom designs and dimensions to match customer production and process requirements.

RT4 series furnace is a patent product of our company, patent number: the ZL200520096582.4. The furnace using the advanced heat treatment equipment manufacturing technology,  has become an important product of the company exported to the international market, Car bottom furnace production capacity of our company is China's largest.

Application Range:

Widely used in the aerospace / military industry / auto parts / casting. Our Industrial Bogie Hearth Furnaces are provided for temperature ranges from 300℃ to 1400℃.

Commen heat treatment





Hardening and Quenching

Stress Relieving

Vacuum heat treatment

Temperature and Dimensions:

Bogie Hearth Furnaces‘s temperature ranges from 300℃ to 1200℃.

We provides a custom design bogie hearth furnaces, from 0.5m3 to over 90m3.

Product Features:

The furnace using ultra save energy structure, it using high purity ceramic fiber module, the use of special high pressure, to ensure the sealing performance of the furnace structure.
save energy structure:

Furnace with high purity ceramic fiber module, the use of special high pressure, to ensure the sealing performance of the furnace structure, ultra energy-saving lining. With high thermal insulation, greatly reducing the consumption of electricity.

Fiber insulation also in combination with meander shaped heating for short heating times.

heating element:

Heated from five sides (from both sides, rear wall, door and bottom), uniform temperature distribution in furnace chamber.

Our furnace using band type heating element, the maximum limit temperature 1440℃. have optimum circulation of hot gases.

Bottom heating elements in bogie hearth covered by diathermic SiC plates, high mechanical strength, protection for bottom heating.

Automatic process:

While the automatic execution of precision heat treatment process, to achieve rapid heating insulation and efficient energy-saving heat treatment of advanced technology.

Using special high-precision temperature control system , heat treatment curve to achieve full automation, temperature control accuracy±1℃.