Ultra-high-temperature vacuum graphite carbon tube furnace
This vacuum graphitized carbon tube furnace is a periodic operation type, utilizing graphitized tubes as heating elements. It is suitable for sintering metal and inorganic non-metallic materials under vacuum or protective atmosphere. It can also be used for the roasting and purification of optical materials.
High-Temperature Vacuum Graphite Carbon Tube Furnace Features
Graphite is used as the heating element, with a rated operating temperature of up to 2200°C.
Inner shell is polished stainless steel, outer shell is carbon steel, double-layer water-cooling structure.
Observation windows are provided on the furnace shell for easy monitoring of the heating inside.
Utilizing tungsten-rhenium thermocouples and infrared thermometers for temperature measurement, with thermocouples automatically entering and exiting.
Ⅰ. Technical Specifications
Rated Temperature 2200℃ Temperature Gauge ● PLC or AI-based PID gauge for automatic temperature control. Bi-directional reverse parallel thyristor voltage regulation for precise control of the electric furnace temperature, with flow control function. Prevents unstable power supply voltage, sudden excessive current causing tripping, and burning of electrical components.
● 51-stage programming curve, automatically heats up, maintains temperature, and cools down according to preset programs. One-touch operation, no need for constant monitoring by workers.
● Built-in temperature control parameter self-tuning function.
● Features over-temperature alarm, thermocouple breakage alarm, and automatic power supply shutdown for reliable protection.Temperature Control Accuracy ±1℃ Heating Rate 0-15°C/minute Furnace chamber Graphite soft felt and hard felt Heating Element Graphite Thermocouple Tungsten-rhenium thermocouple Thermometer Infrared Thermometer Vacuum Level 6×10-3 Pa Furnace shell structure ● Made of high-strength carbon steel, pre-treated with acid pickling and phosphatizing to remove rust, followed by electrostatic powder coating for a sleek and attractive finish.
● Double-layer air-cooled furnace shell, with 2-4 built-in cooling fans, ensuring the surface temperature of the shell is below 60℃.Furnace door Top opening Product Warranty From the date of self-inspection, the entire high-temperature box furnace is provided with a free one-year warranty. In case of any equipment issues, on-site repairs are available, and lifetime technical support is guaranteed!
2. After the warranty period, parts are offered at cost price.

| Heating Zone(Diameter x Height) | Rated Temperature | Power | Voltage | Vacuum |
| Φ80×100mm | 2200℃ | 20kW | 380V | 6.67×10-3Pa |
| Φ90×120mm | 2200℃ | 25kW | 380V | |
| Φ140×160mm | 2200℃ | 40kW | 380V | |
| Φ160×200mm | 2200℃ | 50kW | 380V | |
| Φ260×270mm | 2200℃ | 60kW | 380V | |
| Φ320×320mm | 2200℃ | 100kW | 380V |































