900°C XL Box Resistance Furnace with top tail gas purification device, 3 heating zones, 180° side opening door, equipped with water-cooled stirring fan for VOC organic waste gas treatment for material sintering & heat treatment.
.webp)
2.webp)
4.webp)
3.webp)
1.webp)
| Item | Specification |
|---|---|
| Max. Working Temperature | 900℃ |
| Long-term Service Temperature | 850℃ |
| Chamber Size | 850×750×750mm |
| Temperature Control Range | 100-900℃ |
| Temperature Control Accuracy | ±1℃ |
| Temperature Uniformity | ±5℃ |
| Temperature Sensor | Type K Thermocouple |
| Heating Element Material | High-temperature alloy resistance wire (fixed at both ends) |
| Installation Position of Heating Element | All sides + bottom |
| Temperature Zones | 3 zones: bottom, front & rear, left & right |
| Heating Rate | Max. 20℃/min (non-linear) |
| Furnace Body Structure & Material | Double-layer carbon steel furnace body with air cooling structure. Efficient air cooling baffles enable cold air circulation over the furnace shell. The cooling air cools the conductive strips of heating elements before exhausting out of furnace, preventing high-temperature oxidation of conductive strips and ensuring good working environment. |
| Door Opening Method | 180° axial side-opening door. Elastic lock fitted on side of furnace door for tight sealing. The elastic lock absorbs thermal expansion of refractory materials, allowing free expansion & contraction while maintaining effective sealing. |
| Refractory & Insulation Material | Vacuum-formed high-purity alumina lightweight material. Features high service temperature, low heat storage, thermal shock resistance, no cracking or slag dropping, excellent thermal insulation performance. |
| Fan System | Agitation fan + frequency converter + water cooling |
| Air Inlet | 60W blower, air inlet at bottomBlower fully open below 520℃; runs 30s every 10min above 520℃; fully open after heat preservation completes |
| Touch Screen | 7-inch, Chinese menu, storage of multiple heating curves, historical curves & data report storage |
| Exhaust Gas Purification | Heat organic waste gas above 760℃ (subject to gas composition) to oxidatively decompose VOC into CO₂ and H₂O |
| Quartz Tube | Quartz tube inside chamber: 50mm diameter at both ends, 150mm diameter in middle, heating height 600mm |
| Furnace Shell Temperature | Shell temperature ＜ Ambient temperature +20℃ |
| Safety Protection | Integrated module control unit with high control accuracy. Dual-loop control & dual-loop protection. Protection functions include overshoot, under-regulation, thermocouple break, phase loss, overvoltage, overcurrent, overtemperature, current feedback, soft start, etc. |
| Power-off on Door Opening | Main heating circuit cuts off when furnace door is opened at high temperature, reducing electric shock risk during high-temperature material taking |
| Safety Temperature Control | Closed-loop SCR module trigger control, phase-shift trigger or zero-cross trigger. Output voltage/current/power continuously adjustable, with constant voltage / constant current / constant power modes. Current as inner loop and voltage as outer loop. When sudden load added or current exceeds limit, output current of regulator is limited within rated range to guarantee normal operation. Voltage loop participates in regulation to stabilize current & voltage, protecting heating elements from heavy current/voltage impact and ensuring reliable control and precision. |
| Temperature Curve Setting | Intelligent temperature controller with standard PID, APID, MPT and other AI adjustment modes. Auto-tuning & self-learning, no overshoot or under-regulation. 30-segment program control, arbitrary ramp up/down, jump (cycle), run, pause, stop. Program can be modified during operation. AI algorithm with curve fitting for smooth temperature profile. |
| Program Segments | 50-segment program control. Options: 1 curve ×50 segments; 2 curves ×28 segments each; 3 curves ×15 segments each; 5 curves ×9 segments each. Multiple curves can be saved and selected freely. |
| Panel Buttons | 2 buttons/knobs: Main power, Heating chamber power |
| Standard Accessories | 1 crucible tongs, 1 pair high-temperature gloves, 1 furnace bottom plate |
| Warranty | 1-year free warranty for furnace body. Furnace bottom plate excluded; heating elements excluded (free replacement for natural failure within 3 months) |
| Packing List | 1 furnace, 1 crucible tongs, 1 pair high-temperature gloves, 1 furnace bottom supporting plate, operation manual, certificate, factory test report, delivery note |
| Notes | 1. Recommended heating & cooling rate: 1-15℃/min to prolong service life. Fast heating at high temperature shortens heating element lifespan.2. No vacuum sealing structure. Flammable & explosive gas is prohibited.3. Minor cracks inside chamber after long use are normal and will not affect operation, which can be repaired with alumina coating.4. Corrosive gas is not recommended. Notify us in advance if strong corrosive gas (S, Na etc.) will be used for special chamber treatment.5. Prevent high-temperature solution leakage onto furnace bottom. Use supporting plate or alumina powder for isolation.6. Place equipment in well-ventilated and dry area. |
| Delivery Terms | 1. Triple-layer packaging: wrapped with foam paper, plastic film, then wooden case.2. Free delivery within urban area in China.3. We bear all damages occurred during transportation.4. Transport modes: truck, railway, vessel (export), air freight (export). Dedicated truck for nearby delivery (wood pallet + carton packaging). |
.png)
