1400℃ High-Temperature Electric Furnace (300×300×300mm Furnace Chamber): 380V/18KW, Long-Term Operating Temperature 1300℃, Temperature Control/Constant Temperature Accuracy ±1℃, Equipped with Imported Kanthal Resistance Wire + S-Type Thermocouple (Compliant with AMS2750H), Air-Cooled Double-Layer Furnace Body + 180° Side-Opening Door, Suitable for High-Temperature Sintering of Materials in Multiple Fields, Safe and Precise
The AJ-XL Series High-Temperature Furnace, as shown in the figure, integrates the control system and furnace chamber into one unit. The furnace lining is made of vacuum-formed high-purity alumina lightweight aggregate material.
Heated by high-temperature electric heating elements, it is a specialized equipment developed specifically for laboratories of colleges and universities, scientific research institutes, as well as industrial and mining enterprises. It is designed for the sintering, melting, analysis, and production of ceramics, metallurgical, electronic, glass, chemical, mechanical, refractory materials, new material development, special materials, building materials, metals, non-metals, and other compound materials.
The control panel is equipped with an intelligent temperature controller, control power switch, main heating start/stop buttons, voltage and current meters, computer interface, and observation port/air inlet for real-time monitoring of the system's operating status. Adopting reliable integrated circuits, the product ensures a stable working environment and strong anti-interference capability. When operating at the maximum temperature, the furnace shell temperature is ≤45℃, which significantly improves the working environment. Featuring microcomputer program control and programmable temperature curves, it enables automatic heating and cooling. Temperature control parameters and programs can be modified during operation, offering flexibility, convenience, and ease of use.
| Item | Details |
| Maximum Operating Temperature | 1400℃ |
| Furnace Chamber Dimensions | 300×300×300mm |
| Voltage | 380V±15% |
| Equipment Exterior Color | Signal White (RAL9003) |
| Power | 18kW |
| Long-term Operating Temperature | 1300℃ |
| Effective Temperature | 600-1300℃ |
| Temperature Control Range | 50-1400℃ |
| 380V±15%Temperature Control Precision | ±1℃ |
| Constant Temperature Precision | ±1℃ |
| Furnace Temperature Uniformity | ±5℃ |
| Temperature Measuring Element | Dual-core Type S Thermocouple (compliant with AMS2750H standard), Brand: Chongqing Dazheng |
| Alarm Instrument | Yokogawa (Japan) UM33A-010-11/CV/CT/Z |
| Heating Element Material | Imported Kanthal Resistance Wire |
| Heating Element Installation Position | Four Sides + Bottom |
| Paper Recorder | Dachua Chino 4700 Series (precision compliant with AMS2750H Class Ⅰ Heating Furnace configuration requirements) |
| Temperature Control Instrument | Yokogawa (Japan) UP55A-021-11-00/AP/HA/CT |
| Heating Rate | Maximum heating rate: 20℃/min (Non-linear), Minimum heating rate: 1℃/h |
| Furnace Structure and Material | The electric furnace body adopts an air-cooled double-layer carbon steel structure. Effective air-cooled guide partitions realize overall cold air circulation of the furnace shell, which cools the heating element conductive sheets before exhausting. This avoids high-temperature oxidation of the conductive sheets and ensures a good working environment. |
| Furnace Door Opening Mode | 180° side opening. The furnace door locking device is located on the side of the door, equipped with an elastic lock for effective locking. The elasticity of the lock absorbs the expansion of refractory materials, ensuring free thermal expansion and contraction of refractory materials and effective sealing. |
| Refractory Insulation Material | Furnace lining is made of vacuum-formed high-purity lightweight alumina material, featuring high operating temperature, low heat storage, resistance to rapid heating/cooling, no cracking, no slag falling, and excellent thermal insulation performance. |
| Safety Protection | 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. |
| Power Off on Door Opening | Equipped with a function to cut off the main heating circuit when the furnace door is opened at high temperature during operation, greatly reducing the risk of electric shock when taking materials at high temperature. |
| Safe Temperature Control | Uses closed-loop thyristor module trigger control (phase-shift trigger or zero-crossing trigger mode). Output voltage, current, or power is continuously adjustable, with constant voltage, constant current, or constant 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 range to ensure normal operation. The voltage loop also participates in regulation to maintain stable output current and voltage within the rated range (with sufficient adjustment margin), protecting heating elements from excessive current/voltage impact and ensuring safe, reliable control effect and precision. |
| Temperature Curve Setting | Uses an intelligent temperature controller supporting multiple regulation modes such as standard PID, artificial intelligence adjustment (APID), and MPT. It has self-tuning and self-learning functions, with no overshoot or undershoot. Equipped with a 30-segment program control function, it enables heating and cooling control at any slope, and supports programmable/operable commands such as jump (cycle), run, pause, and stop. Program modification is allowed during operation. An artificial intelligence adjustment algorithm with curve fitting function is adopted to achieve smooth and stable curve control. |
| Number of Heating Curve Segments | 30-segment program control function, which can be set as follows: 1 curve with 50 segments, 2 curves with 28 segments each, 3 curves with 15 segments each, 5 curves with 9 segments each; multiple curves can be input simultaneously and called arbitrarily during use. |
| Panel Buttons | Two buttons/knobs: Main Power Button/Knob, Heating Chamber On Button/Knob |
| Spare Parts | 1 set of heating elements, 1 dual-core Type S thermocouple (matching the equipment), 1 crucible tong, 1 pair of high-temperature gloves, 1 furnace bottom base plate |
| Warranty Scope & Period | The electric furnace comes with a 1-year free warranty; the furnace bottom plate and heating elements are not covered (heating elements can be replaced free of charge for natural damage within 3 months) |
| Notes | 1. To ensure the service life of the electric furnace, the recommended maximum heating and cooling rate is 1-15℃/min (excessively fast heating at high temperature will shorten the service life of heating elements); |
| 2. This box-type furnace has no vacuum sealing structure, and flammable and explosive gases are strictly prohibited; | |
| 3. Minor cracks may appear in the furnace chamber after long-term use, which is normal and does not affect operation. They can be repaired with alumina coating; | |
| 4. Introduction of corrosive gases is not recommended. If strong corrosive gases (such as S, Na) need to be used, please inform us in advance for special furnace chamber treatment; | |
| 5. High-temperature solutions are prohibited from leaking onto the furnace bottom. Use a base plate or alumina powder for isolation; | |
| 6. The equipment should be placed in a well-ventilated and dry environment. | |
| Shipping Terms | 1. The electric furnace is packaged in three layers: wrapped with sponge paper → plastic film → wooden case; |
| 2. Free door-to-door delivery within urban areas in China; | |
| 3. We are responsible for any damage to the electric furnace during transportation; | |
| 4. Logistics methods: Domestic transportation by automobile or railway; special vehicle transportation for short distances (wooden pallet + carton packaging); foreign trade export by ship or air. |
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