AJ-STCY high-temperature industrial electric furnace is a high-performance, high-precision electric heating equipment, suitable for industrial applications such as high-temperature heat treatment, material sintering, ceramic processing, and metal annealing. This electric furnace uses a three-phase 380V power supply with a maximum power of 130kW. The furnace chamber size is 1500×1000×1000mm, which can carry 2 tons of materials, and is equipped with an electric feeding and discharging platform for convenient operation. Its core U-shaped silicon carbide rod heating elements are evenly distributed around the furnace chamber, with a maximum temperature resistance of 1500℃. The heating rate can be freely adjusted between 1℃/h and 15℃/min to meet different process requirements.
✔ High-precision temperature control: Adopting closed-loop thyristor PID control, with a temperature accuracy of ±1℃ and furnace temperature uniformity of ±5℃. It supports 30 segments of programmable temperature control curves to achieve precise heat treatment.
✔ Energy-saving and high-efficiency: Three-layer insulation structure (aluminum silicate + alumina fiber) combined with vacuum-formed refractory materials reduces energy consumption by 20% compared with traditional electric furnaces.
✔ Stable and durable: Double-layer air-cooled furnace body ensures the outer shell temperature is <45℃. Silicon carbide rods are anti-oxidation with a long service life, and the furnace body is corrosion-resistant and easy to clean.
✔ Intelligent and safe: Equipped with multiple protections such as overcurrent, overvoltage, overtemperature, phase loss, and soft start. It supports dual-loop control to ensure long-term stable operation of the equipment.
✔ User-friendly operation: Controlled by a touch screen + imported buttons, it displays real-time parameters such as temperature, current, and power. The programming is flexible, suitable for complex process requirements.
With advantages such as precise temperature control, high efficiency and energy saving, safety and reliability, this electric furnace is an ideal choice for industrial high-temperature processing.

| Model | AJ-STCY |
| Power Supply (AC) | Three-phase 380V |
| Designed Maximum Power | 130KW |
| Furnace Chamber Dimensions (mm) | Depth × Width × Height: 1500×1000×1000 |
| Installation Position of Heating Elements | Evenly distributed around the furnace chamber |
| Temperature Control Precision | ±1℃ (integrated circuit control, no overshoot) |
| Furnace Temperature Uniformity | ±5℃ (depending on the size of the furnace chamber) |
| Temperature Measuring Element | Platinum-rhodium thermocouple (Type S), measuring range 0-1600℃ |
| Heating Rate | Freely adjustable, with a range of 15℃/min (fastest) to 1℃/h (slowest) |
| Heating Elements | Silicon carbide rods as heating elements. U-shaped equal-diameter silicon carbide rods are non-metallic high-temperature electric heating elements made from high-purity α-SiC as the main raw material. They feature fast heating, high thermal efficiency, long service life, no easy deformation at high temperatures, easy installation, operation and 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 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 an internationally advanced 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. |
| Furnace Door Opening Method | Side-opening |
| Cooperation Between Furnace Mouth and Loading Platform Refractories | The furnace mouth and loading platform refractories adopt a stepped cross-sealing design, with angles on both upper and lower parts of the refractories. The opening angle of the loading platform increases, and gradually decreases as the platform closes. |
| Loading Platform Capacity | 2 tons |
| Loading Platform Movement | Electric in and out |
| Refractory Materials | The furnace lining is made of vacuum-formed high-purity alumina lightweight materials. Positions prone to collision during material handling (furnace mouth, furnace bottom) use lightweight hollow spherical alumina plates, featuring high operating temperature, low heat storage, resistance to rapid heating/cooling, good thermal insulation performance (energy-saving effect is over 80% compared to old-fashioned electric furnaces). |
| Insulation Materials | Three-layer insulation: aluminosilicate fiberboard, 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 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 |
| Temperature Curve Setting | Uses an intelligent temperature controller with multiple regulation modes (standard PID, artificial intelligence-adjusted PID, MPT, etc.), featuring self-tuning and self-learning functions, no overshoot/undershoot, and 30-segment program control. It supports arbitrary slope heating/cooling control, with programmable commands (jump/cycle, run, pause, stop) and allows in-operation program modification. Adopts an AI adjustment algorithm with curve fitting function for smooth curve control; temperature curves are set via touchscreen. |
| 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. Includes 2 heating elements, 1 crucible tong, and 1 pair of high-temperature gloves. |
| Random Spare Parts | 2 heating elements, 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) |
| 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 the 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, 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 two layers: wrapped in sponge paper, then with plastic film, and finally fixed with an iron frame as the base. |
| 2. Free door-to-door delivery domestically (free delivery within urban areas). | |
| 3. We shall bear any damage incurred during transportation of the electric furnace. | |
| 4. Logistics methods: Transportation by car, railway, ship (for export), or air (for export). For nearby destinations, our company dispatches a special vehicle for transportation (packaged with wooden pallets and cartons). |
| Furnace Chamber Dimensions (mm) | Power (Heating Rate Automatically Adjustable) | Weight | Furnace Body Dimensions (mm) | Delivery Cycle Remarks |
| 800*400*400 | 35KW | 450Kg | 1500*1000*1400 | 20-25 days |
| 1000*500*500 | 45 KW | 650Kg | 1700*1100*1500 | |
| 1500*600*600 | 75 KW | 1000Kg | 2200*1200*1600 | |
| 2000*800*700 | 120KW | 1600Kg | 2700*1300*1700 | |
| 2400*1400*650 | 190KW | 4200Kg | 3600*2100*1700 | |
| 3500*1600*1200 | 280KW | 8100Kg | 4700*2300*2300 | |
| Furnace chamber dimensions can be customized according to customer requirements | ||||