1200℃ XL Series Cupellation Furnace with intake & exhaust system, electric top opening, silicon carbide rod heating, ±1℃ temperature accuracy, 50-segment program control, air-cooled furnace body for metallurgical cupellation & material sintering.
The XL series high-temperature furnace, as shown in the figure, integrates the control system and the furnace chamber into one unit. The furnace lining is made of vacuum-formed high-purity lightweight alumina material.
It uses high-temperature electric heating elements for heat generation; it is a specialized device designed for laboratories in higher education institutions and research institutes, as well as industrial and mining enterprises, for sintering, melting, analyzing, and producing ceramics, metallurgy, electronics, glass, chemicals, machinery, refractory materials, new material development, special materials, building materials, metals, non-metals, and other chemical compound materials.
The control panel is equipped with an intelligent temperature regulator, control power switch, main heating start/stop buttons, voltage and current meters, a computer interface, and an observation port/air inlet, so that the operating status of the system can be observed at any time. This product adopts a reliable integrated circuit, provides a good working environment, and is resistant to interference. At maximum temperature, the outer shell temperature of the furnace body is ≤45°C, greatly improving the working environment. With microcomputer program control, programmable curves, fully automatic heating/cooling, and the ability to modify temperature control parameters and programs during operation, it is flexible, convenient, and simple to operate.
| Item | Specification |
|---|---|
| Max. Operating Temperature | 1200℃ |
| Long-term Working Temperature | 1200℃ |
| Temperature Control Range | 100-1200℃ |
| Temperature Control Accuracy | ±1℃ |
| Temperature Measuring Element | Type K Thermocouple |
| Heating Element Material | Silicon Carbide Rod |
| Heating Element Installation Position | Vertically installed on both sides of furnace chamber |
| Furnace Chamber Size | 300×200×200mm |
| Power Supply AC | 380V, 60HZ |
| Gas Inlet & Exhaust System | Equipped with rotameter and manual regulating valve to precisely control gas flow during cupellation process, adjust furnace atmosphere and effectively discharge & manage tail gas. |
| Heating Rate | Max. 40℃/min (non-linear) |
| Furnace Structure & Material | The furnace adopts air-cooled double-layer carbon steel structure. Efficient air cooling guide partition enables cold air circulation over furnace shell. Cooling system auto starts when shell surface reaches 50℃. It cools the conductive strips of heating elements before exhaust to prevent high-temperature oxidation and guarantee good working environment. |
| Door Opening Method | Electric vertical lifting door driven by cylinder, supporting automatic & manual control. Equipped with operating handle and foot switch for manual opening during commissioning or fault conditions. The door stays in original position and will not drop when gas or power supply fails. |
| Refractory Insulation Material | Vacuum formed high-purity lightweight alumina lining, featuring high working temperature, low heat storage, good thermal shock resistance, no cracking, no slag falling and excellent thermal insulation performance. |
| Thermal Insulation Material | Three-layer insulation structure: aluminium silicate fiber board, alumina fiber board and polycrystalline alumina fiber board. Energy saving efficiency over 80% compared with old-style electric furnaces. |
| Furnace Shell Temperature | Shell temperature ＜45℃ |
| Safety Protection | Integrated modular control unit with high precision. Dual-loop control and dual-loop protection. Protection functions: overshoot, under-regulation, thermocouple break, phase loss, overvoltage, overcurrent, overtemperature, current feedback, soft start, etc. |
| Power Cut on Door Opening | Main heating circuit cuts off automatically if door is opened at high temperature, greatly reducing electric shock risk during material taking. |
| Safe Temperature Control | Closed-loop SCR module trigger control, phase-shift trigger or zero-cross trigger. Continuously adjustable output voltage/current/power with constant voltage / constant current / constant power function. Current loop as inner loop and voltage loop as outer loop. When sudden load is applied or load current exceeds limit value, regulator output current is limited within rated range to protect heating elements from large current/voltage impact, achieving reliable control and high precision. |
| Temperature Curve Setting | Intelligent temperature controller with PID, APID, MPT and other regulation modes. Auto-tuning & self-learning function, no overshoot or under-regulation. Built-in 30-segment program control for arbitrary slope heating/cooling. Supports jump (cycle), run, pause, stop commands, and program modification during operation. AI algorithm with curve fitting delivers smooth temperature curve. |
| Program Segments | 50-segment programmable function. Options: 1 curve ×50 segments; 2 curves ×28 segments each; 3 curves ×15 segments each; 5 curves ×9 segments each. Multiple curves can be stored and called arbitrarily. |
| Panel Buttons | 2 buttons/knobs: Main power button/knob, Heating chamber switch button/knob. |
| Standard Accessories | 2 pcs heating elements, 1 crucible tongs, 1 pair high temperature gloves, 1 furnace bottom plate. |
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