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- gwdlthermo@gwdl.com
The heating rate is adjustable from 1-20℃/min, and the furnace temperature uniformity is ±1℃. The double loading platforms feature electric in-out and hydraulic lifting. With three-layer insulation, it achieves over 80% energy saving, and the shell temperature is ≤45℃. Equipped with 50-segment program control, RS485 communication interface and dual-loop protection, it is safe and convenient to operate, suitable for high-temperature sintering and treatment of various materials.
| Temperature | 1200℃ |
| Rated Operating Temperature | 1200℃ |
| Long-term Operating Temperature | 1150℃ |
| Control Range | 80 to 1000℃ |
| Temperature Measuring Element | Thermocouple (Type K), measuring range 0-1320℃ |
| Number of Control Units | 5 sets of temperature control systems |
| Installation Position of Heating Elements | Around the furnace + bottom |
| Temperature Control Precision | ±1℃ (integrated circuit control, no overshoot) |
| Furnace Temperature Uniformity | ±1℃ (depending on the size of the furnace chamber; multi-point control can be adopted for large chambers to achieve better temperature uniformity) |
| Heating Rate | Freely adjustable, with a range of 20℃/min (fastest) to 1℃/h (slowest) |
| Heating Elements | High-temperature alloy resistance wires (containing molybdenum, with a surface temperature up to 1500℃) or hydrogen fluoride-resistant silicon carbide rods. 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 features a two-color design, novel and attractive appearance, and 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. |
| Dual Loading Platforms | This lifting furnace can be equipped with dual lifting platforms, which can be alternately replaced at high temperatures, making work efficiency and energy saving more prominent. |
| Loading Platform Movement | Electric mechanical transmission for in/out movement, with adjustable speed, good stability, and high precision. |
| Loading Platform Lifting | Hydraulic lifting for stable operation of the loading platform. |
| Combination of Loading Platform and Furnace Mouth | The furnace door opens by vertical lifting from the bottom; the loading platform and furnace mouth are equipped with 3-4 layers of tapered step soft seals, with elastic high-temperature sealing strips arranged on the steps, which can effectively absorb the expansion of refractory materials between the furnace mouth and the loading platform. |
| Refractories for Loading Platform | The loading platform is made of a combination of vacuum-formed high-purity hydrogen fluoride-resistant materials and high-purity alumina hollow sphere plates, ensuring both thermal insulation performance and load-bearing capacity. |
| Refractory Materials | The furnace lining is made of hydrogen fluoride-resistant 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, good thermal insulation performance (energy-saving effect is over 80% compared to old-fashioned electric furnaces). |
| Furnace Chamber Anti-Corrosion | The heating element coating in the furnace chamber is made of anti-corrosion materials as required, and high-temperature materials in the furnace chamber are anti-corrosion materials. |
| Insulation Materials | Three-layer insulation: aluminosilicate fiberboard, alumina fiberboard, and hydrogen fluoride-resistant refractories. |
| 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 or zero-crossing 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 | Real-time temperature, temperature segment number, segment time, remaining time, output power percentage, voltage, current, etc. |
| Buttons | 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 adjustment APID, MPT, etc.), featuring self-tuning and self-learning functions, no overshoot/undershoot, and 50-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. |
| Multiple Curve Input | 50-segment program control function. Settings can be input as follows: one curve with 30 (50) segments, two curves with 14 (28) segments each, three curves with 9 (15) segments each, five curves with 5 (9) 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 1200 meters. It allows computer control of furnace operations, 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, 1 set of touchscreen control system, 1 exhaust port, 1 set of sintering plates. |
| Warranty Scope and Period | The electric furnace comes with a 1-year free warranty; heating elements are covered for 3 months (no warranty for man-made damage). |
