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- gwdlthermo@gwdl.com
This compact lifting electric furnace is a high-temperature heating device specifically designed for laboratory and small-scale production applications. It features a bottom-opening electric lifting mechanism, precise temperature control within ±1°C, a heating rate of 15°C/min, four-layer insulation, and dual-circuit protection to ensure the exterior temperature remains ≤45°C.
| Temperature | 1600℃ |
| Voltage (AC) | 380V |
| Power | 15KW |
| Furnace Chamber Dimensions (mm) | 300×300×300 |
| Temperature Control Accuracy | ±1℃ |
| Temperature Uniformity in Furnace | ±1℃ (depending on the size of the heating chamber) |
| Temperature Measurement Element and Range | Platinum-rhodium-platinum Type B thermocouple, measuring range 0-1820℃ |
| Heating Rate | Freely adjustable, with a range from 1℃/h (slowest) to 15℃/min (fastest) |
| Heating Elements | Imported U-shaped 1800 silicon molybdenum rods |
| Installation Position and Method of Heating Elements | Vertically installed around the furnace chamber |
| Furnace Body | Processed by CNC machine tools, undergoing 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. |
| Furnace Body Structure | The electric furnace adopts an internationally advanced air-cooled double-layer furnace structure. Effective air-cooled guide partitions enable overall cold air circulation in the furnace shell, which finally cools the conductive plates of the heating elements before being discharged from the furnace body, avoiding high-temperature oxidation of the conductive plates of the heating elements and ensuring a good working environment. |
| Furnace Shell Temperature | Below 45℃ during long-term continuous operation |
| Exhaust Port | A 30mm diameter ceramic exhaust port is opened on the top of the furnace |
| Gas Inlet | Equipped with two floating ball flowmeters |
| Refractory Material | The furnace lining is made of corundum-mullite material |
| Insulation Materials | Four-layer insulation, including alumina fiber cotton, alumina fiberboard, alumina polycrystalline fiberboard, and vacuum-formed high-purity alumina fiber lightweight board. The energy-saving effect is over 80% compared with old-fashioned electric furnaces. |
| Protection | Adopts an integrated modular control unit with accurate control precision, and is designed with dual-loop control and dual-loop protection, featuring protection against overshoot, over-regulation, under-regulation, thermocouple breakage, phase loss, overvoltage, overcurrent, overtemperature, current feedback, and soft start. |
| Control | Adopts closed-loop thyristor module trigger control with phase-shift trigger control or zero-crossing trigger mode. The output voltage, current, or power can be continuously adjusted, with the characteristics of constant voltage, constant current, or constant power. The current loop is the inner loop and the voltage loop is the outer loop. When a load is suddenly applied or the load current exceeds the current limit value, the output current of the voltage regulator is limited within the rated current range to ensure the normal operation of the output and the voltage regulator. At the same time, the voltage loop also participates in regulation, so that the output current of the voltage regulator is limited within the rated current range, and the output current and voltage are maintained constant under the premise of sufficient regulation margin. Thus, the heating elements are protected from the impact of excessive current and voltage, achieving safe and reliable control effect and control precision. |
| Display Parameters | Temperature, temperature segment number, segment time, remaining time, output power percentage, voltage, current, etc. |
| Buttons | Adopts imported buttons with a service life of more than 100,000 times and with LED indicators. |
| Temperature Curve Setting | Temperature curves are set via a touchscreen |
| Fit Between Furnace Mouth and Refractories of Loading Platform | The furnace mouth and refractories of the loading platform are matched with stepped cross-sealing. The refractories have angles on both upper and lower parts. The opening angle of the loading platform increases and gradually decreases as the loading platform closes. |
| Loading Platform | Made of corundum-mullite material, which can rise and fall for loading and unloading |
| Loading Lifting Speed | 5-30s |
| Loading Capacity | 50kg |
| Lifting | Electric mechanical |
| Cooling Structure | Double-layer furnace shell with air cooling |
| Name | Function Introduction | Function Code | |
| Temperature Controller | Standard 50-segment heating curve, optional imported controller (B) | Choose one out of two. | AB |
| Touch Screen | Chinese menu, multi-curve storage, historical data recording (7-inch) | Choose one out of two. | C |
| IoT Interface | RS485 communication for real-time data access (start/pause/stop/curves/timing) | D | |
| Computer Control System | PC software for full furnace control (start/stop/curve setting/data logging). Supports data recording (1s-1h intervals), parameter adjustment, and long-term storage. | E | |
| PLC Control | Siemens PLC (controls heating curves, atmosphere, flow rates, power). Open ports for upstream/downstream equipment integration. | F | |
| Observation Window | High-temperature quartz glass window on furnace door | H | |
| Gas Inlet | Float flow meter + manual valve (selectable flow range/gas type) | Choose one out of two. | K |
| Digital mass flow controller (selectable flow range/gas type) | M | ||
| Exhaust | Manual exhaust valve | Choose one out of two. | T |
| Automatic electric valve (program-controlled by heating curve segments) | P | ||
| Full Auto Gas Control | PLC-controlled electric valves synchronized with heating curves (requires touch screen option) | Y | |
| Casters | 2 swivel + 2 fixed wheels | R | |
| Rapid Cooling | Program-controlled cooling with inverter + centrifugal fan | N | |
| Multi-zone Control | +10% cost per additional heating zone, +20% for independent control | X | |
| Stirring Fan | Metal fan (<1050°C):-4000; Inverter: -1500-2000; PLC-auto control: -4000 | Z | |
| Separate Control Cabinet | Independent cabinet (1600×600×400mm) with 5m control cables | Q | |
| Heat-storage Base | 50mm recessed hollow base with multi-point support (+5% cost) | W | |
| Exhaust Treatment | VOC treatment furnace (40m³/h or 80m³/h options) | V | |
| Corrosion-resistant Chamber | Acid/alkali/HF-resistant materials | G | |
| Heating Element Protection | Protective features against powder contamination and vapor corrosion | L | |
| Clean Chamber | Ceramic/glass/metal lining to prevent dust/vapor contamination | J | |
