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The 2100℃ Vacuum Atmosphere Furnace integrates temperature control, vacuum, and gas path systems. It adopts tungsten sheet heating and a furnace lining with multi-layer metal reflective screens, supports fully automatic program-controlled temperature, and is suitable for high-temperature process requirements such as material sintering and melting in scientific research and industrial fields.
It integrates a temperature control system, vacuum furnace chamber, vacuum pump, gas circuit, pressure protection, gas flow control, and positive/negative pressure display. The water-cooled unit and the furnace body are separate components. The furnace lining is made of multi-layer metal reflective screens.
Tungsten sheets are used as heating elements. This furnace is a specialized equipment developed for sintering, melting, analysis, and production of materials—including ceramics, metallurgical products, electronics, glass, chemicals, machinery parts, refractory materials, new materials, special materials, building materials, metals, non-metals, and other compounds—in laboratories of colleges and universities, research institutes, and industrial enterprises.
The control panel is equipped with a touch screen and PLC intelligent control, enabling intelligent temperature adjustment. It monitors and controls the power supply, main heating operation, voltage, current, water pump, vacuum pump, gas flow, positive/negative pressure, electric contact pressure gauge, and valves, allowing real-time observation of the system’s working status. The product adopts reliable integrated circuits, ensuring stable operation in good working environments with strong anti-interference capability. The outer shell temperature of the furnace is ≤40℃ even at the maximum temperature, significantly improving the working environment. It features microcomputer program control, programmable temperature curves, and fully automatic heating/cooling. Temperature control parameters and programs can be modified during operation, offering flexibility and simple operation.
The furnace chamber is made entirely of vacuum-formed high-purity alumina lightweight material, which has high service temperature, low heat storage, resistance to rapid heating and cooling, and excellent thermal insulation performance. It has a reasonable structure with inner and outer double-layer furnace sleeves and air-cooled heat dissipation, which can greatly shorten the test cycle.
| Temperature | 2100℃ |
| Model | GWDL-2100VAF |
| Common Operating Temperature | 2100℃ |
| High-Temperature Operating Condition | When the temperature is above 1600℃, the argon flow rate is controlled to maintain the furnace pressure at 100-1000Pa, preventing evaporation of heating elements and high-temperature reflectors. |
| Power Supply (AC) | 380V |
| Designed Power | 18KW |
| Furnace Chamber Dimensions (mm) | Depth × Width × Height: 300×160×160 (effective thermal field) |
| Temperature Control Precision | ±1℃ (integrated circuit control, no overshoot) |
| Control Range | 50 to 2100℃ |
| Temperature Uniformity in Furnace | ±2℃ (depends on the size of the heating chamber) |
| Temperature Measuring Element & Range | Thermocouple with graduation number C, measuring range up to 2300℃ |
| Heating Rate | Freely adjustable, with a range of 20℃/min (non-linear, fastest) to 1℃/h (slowest) |
| Heating Elements | High-purity metallic tungsten ribbons (note: nitrogen is prohibited from being introduced when the temperature is above 800℃) |
| Installation Position of Heating Elements | Evenly distributed around the furnace chamber |
| Furnace Body | Processed by CNC machine tools, and manufactured through polishing, grinding, pickling, phosphating, plastic powder spraying, and high-temperature baking. It has a novel and attractive appearance, with advantages such as oxidation resistance, acid and alkali resistance, corrosion resistance, high-temperature resistance, and easy cleaning. |
| Furnace Body Structure | The electric furnace body adopts a 304 stainless steel water-cooled double-layer structure, ensuring a good working environment |
| Furnace Door Opening Method | Side opening |
| Furnace Body Surface Temperature | ≤45℃ during long-term continuous operation |
| Water Cooling System | 3P refrigeration unit (with compressor) |
| Water-cooled Parts | Around the outer shell |
| Vacuum Pump | Two-stage direct rotary vane vacuum pump + roots pump |
| Vacuum Degree | 0.1-1000Pa (controllable pressure) |
| Pressure Resistance | The furnace chamber steel plate has a thickness of 6-20mm, adopts double-sided welding, and can withstand a positive pressure of 0.1Mpa |
| Gas Circuit Valves | Imported stainless steel valves |
| Pressure Detection | 1 digital display pressure gauge with dual indication (positive pressure and negative pressure) |
| Gas Flow Meter | 1 argon mass flow meter for precise control of gas flow |
| Exhaust Port | 1 electrically controlled exhaust port for pressure relief |
| Pressure Protection System | Prevents dangers caused by closed furnace exhaust ports, blocked exhaust ports, or excessive furnace chamber pressure. Principle: Signals are obtained via an electric contact pressure gauge or pressure sensor, which drives the control module to close the electromagnetic gas inlet valve, activate the electromagnetic exhaust valve and alarm, release pressure through the exhaust port, and trigger an audible and visual alarm buzzer to ensure normal operation of the electric furnace. |
| Applicable Atmosphere | Argon |
| Thermal Insulation | The furnace chamber is made of 10 layers of reflectors: 3 layers of tungsten, 2 layers of molybdenum, 2 layers of 310S stainless steel, and 3 layers of 304 stainless steel |
| Protection Systems | 1. Adopts an integrated module control unit with accurate control precision, designed with dual-loop control and dual-loop protection. It provides protection against overshoot, undershoot, thermocouple break, phase loss, overvoltage, overcurrent, overtemperature, current feedback, and soft start. |
| 2. Equipped with a 5kw generator as a backup emergency power supply to prevent power failure at high temperatures, with an automatic control circuit. | |
| Control Mode | Uses closed-loop thyristor module trigger control (phase-shift trigger mode). Output voltage, current, or power is continuously adjustable, with constant voltage, current, or power characteristics. The current loop serves as the inner loop and the voltage loop as the outer loop. When a load is suddenly applied or the load current exceeds the limit, the output current of the voltage regulator is restricted within the rated current range to ensure normal operation of the output and regulator. The voltage loop also participates in regulation to maintain stable output current and voltage within the rated current range (with sufficient adjustment margin), thereby protecting heating elements from excessive current/voltage impact and ensuring safe, reliable control and precision. |
| Display Parameters | Temperature, temperature segment number, segment time, remaining time, output power percentage, voltage, current, pressure, gas flow, vacuum degree, etc. |
| Temperature Curve Setting | Uses a touchscreen intelligent temperature controller |
| Multiple Curve Input | 50-segment temperature program control function, with real-time control via Siemens PLC. It enables automatic setting of temperature, vacuum degree, gas flow, etc. for any temperature segment. |
| Warranty Scope & Period | The electric furnace comes with a 1-year free warranty; heating elements are not covered (free replacement for natural damage within 3 months) |
| Random Spare Parts | 2 fuses, 1 crucible tong, 1 pair of high-temperature gloves |
| Packing List | 1 electric furnace, 2 fuses, 1 crucible tong, 1 pair of high-temperature gloves, 1 instruction manual, 1 certificate of conformity, 1 acceptance report (factory inspection report), 1 sales delivery note |
