1200℃ Electric Top-opening Precision Furnace, pneumatic lift sealing, multi-protective atmosphere, Siemens PLC & 10-inch touch screen, ±1℃ control for geochemical exploration & material sintering.
1. Fast Heating & Precise Control Max heating rate ≤45°C/min; ±1°C control accuracy without overshoot and ±1°C constant-temperature accuracy for efficient, stable runs.
2. Energy Saving & Shorter Cycles Vacuum-formed high-purity alumina lightweight lining offers low heat storage, thermal-shock resistance and no cracking or shedding — over 60% more efficient than conventional furnaces. The double-layer shell with air cooling shortens test cycles.
3. Safe Surface, Better Environment Shell temperature stays ≤45°C even at maximum temperature; integrated circuit design resists interference for stable operation and a comfortable working environment.
4. Smart Control & Flexible Operation Microcomputer program control with programmable curves and fully automatic heating/cooling; parameters can be modified during operation. The split control/chamber design simplifies maintenance, and the panel with voltmeter, ammeter and computer interface shows all status at a glance.
| Item | Specification |
|---|---|
| Model | 1200°C Atmosphere Box Furnace |
| Max. Working Temperature | 1200℃ |
| Long-term Service Temperature | 1150℃ |
| Chamber Size (L×W×H) | 600×400×400mm |
| Temperature Control Range | 80–1200℃ |
| Temperature Sensor | Type K Thermocouple, measuring range 0–1300℃ |
| Installation Position of Heating Element | Vertically mounted on all inner walls and bottom of chamber |
| Temperature Control Accuracy | ±1℃ (Integrated circuit control, no overshoot) |
| Temperature Uniformity | ±3℃ (Dual independent temperature control systems) |
| Heating Rate | Adjustable; Max. 30℃/min (non-linear), Min. 1℃/h |
| Heating Element | Kanthal A1 high-temperature alloy resistance wire |
| Furnace Body | CNC machined, processed by polishing, grinding, pickling, phosphating, powder coating and high-temperature baking. Two-tone design, nice appearance. Anti-oxidation, acid & alkali resistant, corrosion-resistant, high temperature resistant and easy to clean. |
| Furnace Structure | Double-layer air-cooled furnace body. Air cooling baffles enable cold air circulation over furnace shell. Cooling air cools heating element conductive strips then exhausts out, preventing high-temperature oxidation and ensuring good working environment. |
| Door Opening Method | Pneumatic & electric overhead opening, foot switch to control opening & closing height |
| Sealing | Pneumatic lifting and pneumatic locking. Switch controls opening/closing height, full furnace sealing. |
| Gas Inlet & Outlet | DN30 exhaust port on top with adjustable valve. 8 gas inlets evenly arranged at lower left & right sides of chamber, with main inlet and flowmeter. |
| Furnace Base Plate | 310S heat-resistant steel plate, base height 920mm |
| Permissible Atmosphere | Nitrogen, Argon, Carbon Monoxide, Oxygen, etc. |
| Atmosphere Control | Siemens PLC + solenoid valve + pressure reducing valve + 2 pcs float flowmeters |
| Loading Cart | Manual lifting type |
| Refractory Material | Vacuum formed high-purity alumina lightweight material. Lightweight hollow ball alumina board applied for impact & load-bearing areas (furnace mouth, furnace bottom). High service temperature, low heat storage, thermal shock resistance, no cracking or slag dropping, good insulation, energy saving over 80% compared with old-style furnaces. |
| Thermal Insulation Material | 3-layer insulation: aluminosilicate fiber board, alumina fiber board, polycrystalline alumina fiber board, energy saving over 80% compared with old-style furnaces. |
| Furnace Shell Temperature | Shell temperature ＜45℃ under long-term continuous operation without shutdown |
| Protection Functions | Integrated module control unit, dual-loop control & dual-loop protection. Protection: overshoot, under-regulation, thermocouple break, phase loss, overvoltage, overcurrent, overtemperature, current feedback, soft start, etc. |
| Temperature Control | Closed-loop SCR module trigger control, phase-shift trigger or zero-cross trigger. Output voltage/current/power continuously adjustable, constant voltage / constant current / constant power mode. Current as inner loop, voltage as outer loop. When sudden load or over current occurs, output current limited within rated range, protecting heating elements against heavy current/voltage impact to ensure reliable control and precision. |
| Automatic Control | Built-in Siemens PLC, 10-inch touch screen. Fully automatic process of temperature, time, pressure, atmosphere and exhaust, one-key operation for temperature linked conditions. |
| Display Parameters | Real-time temperature, segment number, segment time, remaining time, output power percentage, voltage, current, etc. |
| Temperature Curve Setting | Intelligent temperature controller with PID, APID, MPT AI regulation, 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 online during operation. AI curve fitting for smooth temperature profile. |
| Multi-Curve Storage | 50-segment program control (customizable). Options: 1 curve ×30(50) segments; 2 curves ×14(28) segments each; 3 curves ×9(15) segments each; 5 curves ×5(9) segments each. Multiple curves saved and freely selectable. |
| Communication Interface | RS485 interface, communication distance up to 1200m. PC remote start/stop, curve setup/read, parameter configuration. PC screen displays measured value, setpoint, output, segment No., temperature curve, power curve. Curves can be stored & modified. History curve & report logging interval: 1s–1h, long-term storage. |
| Standard Accessories | 2 heating elements, 2 sets of fixtures, 1 crucible tongs, 1 pair high-temperature gloves |
| Warranty | 1-year free warranty for furnace body. Heating elements excluded (free replacement for natural failure within 3 months) |
| Packing List | 1 furnace, 2 heating elements, 2 sets of fixtures, 1 pair high-temperature gloves, operation manual, certificate, factory acceptance report, delivery note |
| Delivery Terms | 1. Triple-layer packaging: foam paper wrapping, plastic film, wooden case.2. Free delivery within urban area in China.3. We bear all damage during transportation.4. Transport modes: truck, railway, sea freight (export), air freight (export). Dedicated truck for nearby delivery (wood pallet + carton). |
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