Applications

Car bottom furnaces, also known as hearth furnaces, are highly prized for their versatility and robust capacity to handle heavy loads in various industries. This article delves into the design, applications, and advantages of these furnaces.

Equipped with a movable car, car bottom furnaces allow for loading outside the furnace, heating inside, and then unloading outside again. This design allows for constant operation, the management of large loads, and the ability to tailor the process to specific requirements.

Their versatility makes them popular in a variety of industries, as they’re capable of performing a range of heat treatment processes, such as annealing, stress relieving, and hardening. They’re also utilised for preheating, drying, and aging. This makes them particularly valuable in sectors like aerospace, automotive, steel, and forging, thanks to their uniform heating and cooling abilities.

standard features

• The stove’s outer casing is made of Q235 low carbon steel, featuring electrostatic and corrosion resistance on the surface. It has a sturdy metal frame shell structure, with a low furnace surface temperature.
• The design incorporates multi-layer thermal insulation. It includes a double-layer light refractory brick lining, ensuring a robust structure. The high-strength stacking and splicing, along with the absence of asbestos, result in low heat loss and reduced energy consumption.
• The industrial car bottom furnace contains a high-quality heating element, securely installed on three sides, ensuring it is energy-efficient and durable.
• The furnace is heated from three sides (left, right and bottom) to maintain good temperature uniformity inside. Additionally, a silicon carbide bottom plate protects the bottom heating element, providing high mechanical strength, excellent thermal conductivity, and horizontal load-bearing capacity.
• The trolley at the bottom moves smoothly and without impact. It allows for material to be loaded from the bottom, and the workbench can be moved.
• Heating rate of the car bottom furnace is 1-25℃/per minute, suggest 15℃/min for a long service life.
• The device features a circuit breaker that trips automatically during a leakage or short circuit, safeguarding both equipment and operators.
• The furnace emits an alarm signal and automatically protects when overheated or when the thermocouple breaks during the working process.
• Programmable digital PID temperature controller, can set the heating curve and program 30 segments；automatic heating, automatic insulation, automatic stop, can meet the requirements of continuous constant temperature and temperature control.
• The temperature control is precise, with minimal temperature fluctuations. It includes temperature compensation and calibration functions, with an accuracy of ±1℃.
• There is an automatic flip-type exhaust port on the top of the furnace to realize the debinding of materials.
• Can be customized according to process requirements.
• Standard configurations: 1. Furnace body -1 set 2. Temperature controller -1 set 3. Power cord -3 meters 4. Thermocouple -1 set 5. Manual -1 copy
• Optional accessories:
  • Optional manual and automatic air intake control unit.
  • Install a hot air circulation system in the furnace to achieve a more uniform temperature field.
  • An optional rapid cooling system can facilitate quick material cooling when the furnace temperature is within 400°C.
• Quality Certificates: CE, SGS, ISO9001, TUV
• Warranty: one year，life long technical support

technical details(models)

Models	Chamber Size (mm)	Volumes	Max temp	Continous temp	Heating element	Thermocouple	Voltage/Power
STT-96-12	400×600×400	96L	1200℃	1100℃	HRE	N type	380V/18KW
STT-288-12	600×800×600	288L	1200℃	1100℃	HRE	N type	380V/30KW
STT-640-12	800×1000×800	640L	1200℃	1100℃	HRE	N type	380V/45KW
STT-1200-12	1000×1200×1000	1200L	1200℃	1100℃	HRE	N type	380V/80KW
STT-2160-12	1200×1500×1200	2160L	1200℃	1100℃	HRE	N type	380V/150KW
STT-96-14	400×600×400	96L	1400℃	1350℃	SiC	S type	380V/21KW
STT-288-14	600×800×600	288L	1400℃	1350℃	SiC	S type	380V/30KW
STT-640-14	800×1000×800	640L	1400℃	1350℃	SiC	S type	380V/50KW
STT-1200-14	1000×1200×1000	1200L	1400℃	1350℃	SiC	S type	380V/100KW
STT-2160-14	1200×1500×1200	2160L	1400℃	1350℃	SiC	S type	380V/200KW
STT-96-17	400×600×400	96L	1700℃	1600℃	MoSi2	B type	380V/25KW
STT-288-17	600×800×600	288L	1700℃	1600℃	MoSi2	B type	380V/50KW
STT-640-17	800×1000×800	640L	1700℃	1600℃	MoSi2	B type	380V/80KW
STT-1200-17	1000×1200×1000	1200L	1700℃	1600℃	MoSi2	B type	380V/150KW
STT-2160-17	1200×1500×1200	2160L	1700℃	1600℃	MoSi2	B type	380V/300KW
OEM	Any size