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- gwdlthermo@gwdl.com
The 1100°C vacuum atmosphere lifting furnace integrates water tank dust removal and VOC exhaust purification, ensuring clean, safe, and controlled thermal processing
category parameter | 1100 degrees |
| Maximum operating temperature | 1100 degrees |
| Long-term operating temperature | 1000 degrees |
| Furnace size | Furnace dimensions: Length 2000-Width 1000-Height 1000 mm |
| The control range is | 80 to 1200 degrees |
| Temperature sensing element | Thermocouple type K, temperature range 0-1320 degrees Celsius |
| Heating element mounting position | All sides + bottom |
| Temperature control accuracy | ± 1 degree (integrated circuit control, no overshoot) |
| Furnace temperature uniformity | ± 5 degrees (depending on the size of the furnace; larger furnaces can use multi-point control to achieve better furnace temperature uniformity). |
| heating rate | The heating rate is freely adjustable, with the following range: fastest heating rate 20 degrees per minute ( 20 degrees /min ), slowest heating rate 1 degree per hour ( 1 degree /h ). |
| Heating element | High-temperature silicon carbide rods are used as heating elements. U -shaped silicon carbide rods are non-metallic high-temperature electric heating elements made of high-purity a-SiC as the main raw material. They have the characteristics of rapid heating, high thermal efficiency, long life, not easily deformed at high temperatures, easy installation, operation and maintenance, and a temperature that can reach 1500 degrees Celsius. The bottom furnace is heated by high-temperature alloy resistance wire. |
| Furnace body | The furnace body is machined using CNC machine tools, and undergoes polishing, grinding, pickling, phosphating, powder coating, and high-temperature baking. It features a two-tone design, a novel and attractive appearance, and possesses advantages such as oxidation resistance, acid and alkali resistance, corrosion resistance, high-temperature resistance, and easy cleaning. |
| Furnace body structure | The electric furnace features a double-layered outer shell, employing an air-cooled double-layered furnace body structure. Effective air-cooling guide baffles ensure overall cold air circulation within the furnace shell, ultimately cooling the conductive plates of the heating elements before they are discharged from the furnace body, preventing high-temperature oxidation of the conductive plates and guaranteeing a comfortable working environment. |
| loading table | This lifting furnace has a high-temperature alloy resistance wire at the bottom of the charging platform, which makes the material heat more evenly and improves working efficiency and energy saving. |
| Loading platform in and out | The loading platform uses an electric screw mechanical drive for infeeding and outfeeding, with adjustable speed, good stability, and high precision. |
| Loading platform lifting | The loading platform is raised and lowered using four lead screws, and the lifting speed is adjustable. |
| The charging platform is combined with the furnace opening. | The furnace door opens by vertical lifting from the bottom; the charging platform and the furnace opening have 3-4 layers of tapered steps for soft sealing, and elastic high-temperature sealing strips are arranged on the steps to effectively absorb the expansion of the refractory materials at the furnace opening and the charging platform. |
| Refractory material for loading platform | The loading platform is made of vacuum-formed high-purity alumina lightweight material and high-purity alumina hollow spherical plate, which ensures both thermal insulation and load-bearing performance. |
| Refractory materials | The furnace lining is made of vacuum-formed high-purity alumina lightweight material. Lightweight hollow spherical alumina plates are used in areas prone to material handling and load-bearing (furnace opening and bottom). It has high operating temperature, low heat storage, resistance to rapid heating and cooling, no cracking, no slag shedding, and good heat preservation performance (energy saving effect is more than 80% of that of old-style electric furnaces ). |
| thermal insulation materials | It adopts a three-layer insulation system, consisting of aluminum silicate fiberboard, alumina fiberboard, and alumina (polycrystalline) fiberboard, achieving an energy-saving effect of over 80% compared to traditional electric furnaces . |
| Furnace shell temperature | For long-term use without shutting down the furnace, the outer casing temperature should be less than 45 degrees Celsius . |
| Protect | The system employs an integrated modular control unit, ensuring accurate control precision. It also features dual-loop control and dual-loop protection, providing protection against overshoot, over-adjustment, under-adjustment, thermocouple breakage, phase loss, overvoltage, overcurrent, overtemperature, current feedback, and soft start. |
| control | It adopts a 10-inch true-color touch screen PLC for centralized control, including temperature setting, historical records, and data reports, which can be downloaded to a computer for printing. Closed-loop technology utilizes a thyristor module for trigger control, phase-shift trigger control, or zero-crossing triggering. The output voltage, current, or power is continuously adjustable, exhibiting constant voltage, constant current, or constant power characteristics. The current loop is the inner loop, and the voltage loop is the outer loop. When a sudden load is applied or the load current exceeds the current limit, the output current of the voltage regulator is limited to the rated current range, ensuring normal operation of the output and the voltage regulator. Simultaneously, the voltage loop also participates in regulation, limiting the output current of the voltage regulator to the rated current range, maintaining constant output current and voltage with sufficient adjustment margin. This protects the heating elements from excessive current and voltage surges, achieving safe, reliable, and precise control. |
| Water cooling | The equipment is water-saving and is equipped with a high-temperature circulating water pump, circulating water tank, and water radiator; the water-cooled parts are the furnace top, furnace opening, furnace door, and outer shell. |
| atmosphere | The electric furnace can be supplied with hydrogen, nitrogen, argon, carbon monoxide, oxygen, etc. |
| vacuum degree | -0.1Mpa |
| Overpressure protection | This system was specifically designed to prevent hazards caused by closure or blockage of the exhaust port, or excessive pressure in the furnace tubes. Its principle is as follows: a signal from an electric contact pressure gauge or pressure sensor drives the control module to close the electromagnetic intake valve and activate the electromagnetic exhaust valve and alarm. This protects the normal operation of the electric furnace. |
| Display parameters | Real-time temperature, temperature range number, time period, remaining time, output power percentage, voltage, current, etc. |
| Button | It uses imported buttons with a lifespan of over 100,000 cycles and comes with an LED indicator. |
| Temperature profile setting | Employing an intelligent temperature controller, it offers multiple adjustment modes including standard PID , AI-based APID , and MPT. It features self-tuning and self-learning capabilities, excellent control characteristics with no overshoot or undershoot, and 30- segment programmable control. It can achieve temperature rise and fall control with arbitrary slopes and provides programmable / operable commands such as jump (loop), run, pause, and stop, allowing modification of the program at any time during operation. Utilizing an AI-based adjustment algorithm with curve fitting capabilities, it achieves smooth and even curve control. |
| Multiple curve inputs | The program control function has 30 segments ( 50 segments can be customized). The input settings are: 30 ( 50 ) segments for one curve, 14 ( 28 ) segments for two curves , 9 ( 15 ) segments for three curves, and 5 ( 9 ) segments for five curves . Multiple curves can be input at the same time and can be called up at will when in use. |
| Communication interface | The electric furnace is equipped with an RS485 communication interface, with a communication distance of up to 1200 meters. It can be controlled by computer to start, pause, stop, set and read the heating curve, and set parameters. It is highly reliable and easy to operate. The computer screen displays a wealth of information, including measured values, setpoints, output values, time intervals, segment numbers, heating curves, and power percentage curves. Heating curves can be stored on the computer and can be recalled and modified at will. Setpoints and commonly used parameters can be modified. Historical curves and historical reports can be filtered by time interval ( 1 second to 1 hour ) and can be stored for a long time. |
| Random accessories | Two heating elements, two sets of rods, one crucible tongs, and one pair of high-temperature gloves. |
| Warranty coverage and period | The electric furnace comes with a one-year free warranty, but the heating element is not covered by the warranty (it will be replaced free of charge if it fails naturally within three months). |
| Customer optional configuration | 1 . Crucibles, saggers, corundum furnace pads / silicon carbide pads 2 . Computer control software and hardware 3 . Touchscreen temperature controller 4 . Add exhaust port 5 . Consumables: Heating elements |
