- +86-13526935931
- gwdlthermo@gwdl.com
It boasts excellent temperature control/temperature field accuracy. The two-stage vacuum pump can reach -0.1MPa. The 7-inch screen is capable of setting 30-segment curves, and it is equipped with fire extinguishing and pressure protection functions. Suitable for high-temperature processing in multiple scenarios, it ensures safety and high efficiency.
| Temperature | 1000℃ |
| Model | GWL-1000VSF-R |
| Furnace Chamber Dimensions (mm) | Depth × Width × Height: 600×600×900 |
| Power | 45KW (Design power: 75KW; actual operating power is within approximately 85%, which can be automatically adjusted according to different heating processes) |
| Power Supply (AC) | 380V |
| Temperature Control Precision | ±1℃ (integrated circuit control, no overshoot) |
| Control Range | 50 to 1000℃ |
| Temperature Uniformity in Furnace | ±5℃ |
| Temperature Measuring Element & Range | K-type thermocouple, measuring range: 0-1320℃ |
| Heating Rate | Freely adjustable, with a range of 15℃/min (fastest) to 1℃/h (slowest) |
| Heating Elements | High-temperature alloy resistance wires (containing molybdenum), wound into a spiral spring shape |
| Installation Position of Heating Elements | Evenly distributed around the interior and at the bottom of the furnace chamber; adopts five-sided heating, ensuring uniform heat generation of heating elements and excellent temperature uniformity in the furnace |
| Furnace Body | Processed by CNC machine tools, and manufactured through polishing, grinding, pickling, phosphating, plastic powder spraying, and high-temperature baking. It features a two-color design with a novel and attractive appearance, and has advantages such as oxidation resistance, acid and alkali resistance, corrosion resistance, high-temperature resistance, and easy cleaning. |
| Observation Window | One observation window is installed on the furnace door |
| Furnace Door Opening Method | Side opening |
| Furnace Door Locking | Pneumatic furnace door locking |
| Furnace Body Surface Temperature | ≤45℃ during long-term continuous operation |
| Hot Air Agitation | Function: A fan blade is installed at the top of the furnace chamber. The rotation of the fan blade agitates the air inside the furnace to achieve uniform temperature distribution, ensuring consistent temperature in the furnace. |
| Agitation Blades | 310S stainless steel, suitable for use below 1050℃ |
| Agitation Motor & Rotational Speed | The agitation motor adopts water cooling; rotational speed is infinitely variable via a frequency converter; power: 3KW |
| Forced Cooling System | The furnace chamber is equipped with stainless steel cooling coils, which can be filled with circulating cooling water to accelerate heat dissipation, increase cooling speed, and improve equipment efficiency. The circulating cooling water system is a closed-loop system, composed of a closed water cooler, control valves, and stainless steel pipes, effectively enhancing equipment utilization. It ensures a cooling rate of ≮35℃/h, meeting the requirement of opening the furnace door when the temperature drops to 70℃ within 10 hours. |
| Refrigeration Unit | 3P |
| Vacuum Pump | Two-stage rotary vane vacuum pump, 70L/s |
| Vacuum Degree | -0.1Mpa |
| 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 pointer pressure gauge with dual indication (positive pressure and negative pressure); |
| 1 digital display pressure gauge with dual indication (positive pressure and negative pressure) | |
| Gas Flow Meters | 2 float flow meters |
| Gas Inlets | 2 |
| Exhaust Ports | 1 |
| Seals | High-temperature silicone rubber rings (temperature resistance: 260℃-350℃) |
| 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 Atmospheres | Hydrogen, nitrogen, argon, carbon monoxide, oxygen, etc. |
| Refractory Materials | The furnace lining is made of vacuum-formed lightweight alumina material. 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, no cracking, no slag falling, and good thermal insulation performance. |
| Insulation Materials | Three-layer insulation: aluminum silicate fiberboard, alumina fiberboard, and alumina (polycrystalline) fiberboard |
| Protection Systems | 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. |
| 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, etc. |
| Buttons | High-quality buttons with a service life of over 100,000 times, equipped with LED indicators |
| Temperature Curve Setting | 7-inch touchscreen paperless recorder |
| Temperature Control | Uses an intelligent temperature controller with a dual-line LED display dial. It supports multiple regulation modes such as standard PID, artificial intelligence adjustment (APID), and MPT, with self-tuning and self-learning functions, and excellent control performance of no overshoot and no undershoot. It has a 30-segment program control function, enabling heating and cooling control at any slope, and supports programmable/operable commands such as jump (cycle), run, pause, and stop. It also allows program modification during operation. An artificial intelligence adjustment algorithm with curve fitting function is adopted to achieve smooth and stable curve control. |
| Multiple Curve Input | 30-segment program control function, which can be set as follows: 1 curve with 30 segments, 2 curves with 14 segments each, 3 curves with 9 segments each, 5 curves with 5 segments each. Multiple curves can be input simultaneously and called arbitrarily during use. |
| Communication Interfaces | RS485, RS232, USB |
| Alarm & Protection | Audible and visual over-temperature alarm installed; equipped with an automatic power-off device when the furnace door is opened |
| Automatic Fire Extinguishing System | The equipment is equipped with a flame detection alarm and fire extinguishing system. When the remote sensing system detects a fire in the furnace chamber, it sends an alarm signal to prompt the operator to confirm the fire and decide whether to activate the powder fire extinguishing system. Compressed fire-extinguishing dry powder can be injected into the furnace to extinguish the sintered samples. |
| 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 heating elements, 2 sets of rod tools, 1 crucible tong, 1 pair of high-temperature gloves |
| 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 |
