This furnace achieves both temperature control accuracy and uniformity of ±1℃, equipped with a platinum-rhodium S thermocouple for temperature measurement (0-1720℃), and the heating rate is adjustable from 1-20℃/min. The load capacity of the loading platform is 1-50KG (customizable). The lifting and firing time are adjustable. It features three-layer insulation with over 80% energy saving, and the furnace body temperature is ≤45℃.
| Temperature | 1400℃ |
| Model | AJ-1400SS |
| Number of Loading Platforms | 1 or multiple |
| Power Supply (AC) | Three-phase five-wire 380V |
| Maximum Operating Temperature | 1450℃ |
| Long-term Operating Temperature | 1400℃ |
| Control Range | 80 to 1650℃ |
| Temperature Measuring Element | Platinum-rhodium thermocouple (Type S), measuring range 0-1720℃ |
| Installation Position of Heating Elements | Around the furnace |
| Temperature Control Precision | ±1℃ (integrated circuit control, no overshoot) |
| Furnace Temperature Uniformity | ±1℃ (depending on the size of the furnace chamber) |
| Heating Rate | Freely adjustable, with a range of 20℃/min (fastest) to 1℃/h (slowest) |
| Heating Elements | U-shaped equal-diameter silicon carbide rods. These are non-metallic high-temperature electric heating elements made from high-purity α-SiC as the main raw material, featuring fast heating, high thermal efficiency, long service life, no easy deformation at high temperatures, easy installation/operation/maintenance, and a maximum temperature of 1500℃. |
| Furnace Body | Processed by CNC machine tools, with processes including polishing, grinding, pickling, phosphating, plastic powder spraying, and high-temperature baking. It features a two-color design, 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 an air-cooled double-layer structure. Effective air-cooled guide partitions enable overall cold air circulation in the furnace shell, which finally cools the heating element conductive plates before being discharged, avoiding high-temperature oxidation of the conductive plates and ensuring a good working environment. |
| Loading Platform Lifting Mode | Fully automatic electric lifting, with adjustable lifting time. |
| Firing Time After Platform Rising | Adjustable (1-9999 seconds) |
| Firing Time After Platform Lowering | Adjustable (1-9999 seconds) |
| Cooperation Between Furnace Mouth and Loading Platform Refractories | Adopts stepped cross-sealing; refractories have angles on both upper and lower parts. The opening angle of the loading platform increases and gradually decreases when closing. |
| Loading Platform Capacity | 1-50KG (customizable according to customer requirements) |
| Refractory Materials | The furnace lining is made of vacuum-formed high-purity alumina lightweight materials. Positions prone to collision during material handling and load-bearing positions (furnace mouth, furnace bottom) use lightweight hollow spherical alumina plates, featuring high operating temperature, low heat storage, resistance to rapid heating/cooling, and good thermal insulation performance (energy-saving effect is over 80% compared to old-fashioned electric furnaces). |
| Insulation Materials | Three-layer insulation: alumina fiber cotton, alumina fiberboard, and alumina (polycrystalline) fiberboard, with an energy-saving effect over 80% compared to old-fashioned electric furnaces. |
| Furnace Body Surface Temperature | ≤45℃ during long-term (20 days) continuous operation |
| Protection | Adopts an integrated module control unit with accurate control precision, designed with dual-loop control and dual-loop protection, featuring overshoot, undershoot, thermocouple break, phase loss, overvoltage, overcurrent, overtemperature, current feedback, and soft start protection. |
| Control | 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 is the inner loop and the voltage loop is the outer loop. When the load is suddenly applied or exceeds the current limit, the output current of the voltage regulator is limited within the rated 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 range, thus 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, etc. |
| Buttons | Imported buttons with a service life of over 100,000 times, equipped with LED indicators. |
| Multiple Curve Input | 30-segment program control function. Settings can be input as follows: one curve with 30 segments, two curves with 14 segments each, three curves with 9 segments each, five curves with 5 segments each. Multiple curves can be input simultaneously and called arbitrarily during use. |
| Communication Interface | Equipped with an RS485 communication interface with a maximum communication distance of 1000 meters. It allows centralized control of furnace operations via a touchscreen, including start, pause, stop, heating curve setting/reading, and parameter adjustment, with high reliability and ease of use. The computer interface displays rich content, including measured values, set values, output values, segment time, segment number, heating curves, and power percentage curves. Heating curves can be stored on the computer, with stored curves editable for set values and common parameters. Historical curves and reports can be filtered by time interval (1s-1h) and saved long-term. |
| Random Spare Parts | 2 heating elements, 2 sets of rod tools, 1 crucible tong, 1 pair of high-temperature gloves |
| Warranty Scope and Period | The electric furnace comes with a 1-year free warranty; heating elements are not covered (free replacement for natural damage within three months). |
| Customer Optional Accessories | 1. Crucibles, saggars, corundum furnace pads/silicon carbide pads (see electric furnace accessories) |
| 2. Computer control software and hardware (click to view) | |
| 3. Touchscreen temperature controller (click to view) | |
| 4. Additional exhaust ports | |
| 5. Consumables: heating elements | |
| 6. An additional loading platform (total two platforms, which can be used alternately to improve efficiency and save electricity) | |
| 7. Additional observation ports | |
| Notes | 1. To avoid affecting the service life of the electric furnace, we recommend a maximum heating and cooling rate of 10-20℃/min (excessively fast heating will shorten the service life of heating elements). |
| 2. This electric furnace has no vacuum-sealed structure, so flammable and explosive gases must not be introduced. | |
| 3. After using this electric furnace for a period of time, tiny cracks may appear in the furnace chamber, which is a normal phenomenon and will not affect use. It can be repaired with an alumina coating. | |
| 4. Introducing corrosive gases is not recommended. If strong corrosive gases such as S or Na need to be introduced, please inform us in advance, and we will specially treat the furnace chamber. | |
| 5. Do not allow high-temperature solutions to leak onto the furnace bottom. To avoid this, use a backing plate or alumina powder for isolation. | |
| 6. The instrument should be placed in a well-ventilated and dry place. | |
| Packing List | 1 electric furnace, 2 heating elements, 2 sets of rod tools, 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. |
| Shipping Information | 1. The electric furnace is packaged in three layers: wrapped with sponge paper, then wrapped with plastic film, and finally packed in a wooden box. |
| 2. Free door-to-door delivery within China (free delivery within urban areas). | |
| 3. We shall be responsible for any damage to the electric furnace during transportation. | |
| 4. Logistics methods: transportation by car, railway, ship (for export), or air (for export). For nearby destinations, our company dispatches special vehicles for transportation (packaged with wooden pallets and cartons). | |
| Selection Instructions | Customizable |
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