Industrial Box Furnace

Box Heat Treatment Furnace

COOLDO Box heat treatment furnace is a flexible single chamber furnace designed for meet many processing requirements. The Box Furnaces are used for normalizing, annealing, quenching, tempering, hardening and other high temperature thermal processes for carbon steel, alloy steel, high-speed steel and other metal parts with different heating method in electric, direct fired or indirect gas fired.


Temperature:almost 950-1200℃
Temperature control accuracy:±1℃
Chamber Material: Ceramic fiber insulating systems
Heating element:Resistance wire ( under 1200℃) ,
silicon carbide rod or gas/fuel heating( up to 1200℃)

Description of Industrial Vacuum Box Heat Treat Furnace



The Box Furnace can be desgined a vertical lift or swing out door allowing the various sized product(s) to be placed in the furnace, that can be customized to meet many processing requirements. Multiple zone heating technology can be integrated to maintain exceptional part temperature uniformity, and achieve heating and cooling profiles.

Chamber structure: All use the Ceramic fiber insulating systems, Alos can be incorporated within the special design of atmosphere protection.
Heat Method:  Provided in electric, direct fired or  indirect gas fired for specific processing requirements.
Furnce door: The frame made by steel plate, two styles of door are vertical lift and swing out.
Heating Efficiency: Specially-designed furnace door sealing, and built-in heating wire ensure excellent sealing performance and uniform furnace temperature.
Protection: Equipped with all kinds of interlock protection device, which can prevent Failure and accident due to misoperation.

Feature of Industrial Box Heating Furnace For Steel Hardening:


1).Adopt ceramic fiber, greatly shortening starting heating time and extraordinarily saving energy up to 20%-30%.

2). Specially-designed furnace door and roller sealing, and built-in heating wire ensure excellent furnace door sealing and uniform furnace temperature.

3). Double-thermocouple control: one thermocouple is for testing furnace temperature, and the other one is for over-heat protection.

4). The furnace is equipped with interlock protection device, which can prevent Failure and accident due to misoperation.

5). Adopt intelligent digital temperature-control system, which feature clear reading, conveniently adjusted, high temperature control precision, easy structure, safe and reliable.

Parameter of Chamber Furnace For Hardening and Tempering of steel:


Item  Power 
Phase Voltage
Zone size
RX3-15-9Q Furnace 15 3 380 950 650x300x250
RX3-30-9Q Furnace 30 3 380 950 950x450x350
RX3-45-9Q Furnace 45 3 380 950 1200x600x400
RX3-60-9Q Furnace 60 3 380 950 1500x750x450
RX3-75-9Q Furnace 75 3 380 950 1800x900x550
RX3-20-12 Furnace 20 3 380 1200 650x300x250
RX3-45-12 Furnace 45 3 380 1200 950x450x350
RX3-65-12 Furnace 65 3 380 1200 1200x600x400
RX3-90-12 Furnace 90 3 380 1200 1500x750x450
RX3-105-12 Furnace 105 3 380 1200 1800x900x550

Video of Industrial Box Furnace for Steel Quenching: