Zhongke Aobo TE0712 Integrated Box-Type Muffle Furnace
| Brand | Zhongke Aobo |
|---|---|
| Model | TE0712 |
| Type | Box-Type Muffle Furnace |
| Max Temperature | 1200 °C |
| Temperature Control Accuracy | ±1 °C |
| Rated Power | 3 kW |
| Heating Rate to Max Temp | 30 °C/min |
| Heating Element | Resistance Wire (HRE Alloy) |
| Internal Chamber Dimensions | 300 × 200 × 120 mm (W × D × H) |
| Insulation Material | Polycrystalline Mullite Ceramic Fiber (1500 °C rated) |
| Control System | Intelligent 30-Stage PID Programmable Controller |
| Safety Protections | Over-Temperature, Thermocouple Break, and Overload Protection |
| External Casing | Cold-Rolled Galvanized Steel with High-Temperature Baked Enamel Finish |
Overview
The Zhongke Aobo TE0712 Integrated Box-Type Muffle Furnace is a precision-engineered laboratory thermal processing instrument designed for reliable, repeatable high-temperature operations up to 1200 °C. Utilizing the principle of resistive heating via embedded HRE alloy wire elements and insulated by polycrystalline mullite ceramic fiber rated to 1500 °C, this furnace achieves rapid thermal response, exceptional energy efficiency, and uniform temperature distribution across its 7.2 L chamber (300 × 200 × 120 mm). Unlike traditional brick-lined furnaces, its lightweight ceramic fiber architecture reduces thermal mass—enabling a heating rate of 30 °C/min to maximum setpoint while maintaining surface temperatures below 50 °C at 1000 °C operation (well within ISO 4874 and ASTM E1113 surface safety thresholds). The unit is fully self-contained, with integrated controller, power supply, and structural housing—eliminating external wiring or auxiliary cooling requirements.
Key Features
- Integrated monolithic design with cold-rolled galvanized steel casing finished in high-temperature baked enamel for corrosion resistance and mechanical durability.
- Polycrystalline mullite ceramic fiber furnace lining (1500 °C rating) offering superior thermal insulation, reduced energy consumption (~40% vs. conventional refractory brick furnaces), and extended service life (up to 3.5× longer operational cycle).
- Intelligent 30-stage programmable PID controller enabling precise ramp-soak profiles, real-time temperature logging, and automatic shutdown on fault detection.
- Dual-layer thermal barrier construction: inner ceramic fiber board + outer air-gap cavity, ensuring surface temperature remains ≤50 °C at 1000 °C internal load—meeting IEC 61000-3-2 and EN 60519-2 personnel safety guidelines.
- Comprehensive safety suite including over-temperature cutoff, thermocouple break detection (K-type), and current overload protection—certified compliant with GLP-aligned operational integrity protocols.
Sample Compatibility & Compliance
The TE0712 accommodates standard crucibles (alumina, quartz, platinum), ceramic boats, and metal sample holders up to 100 mm in height. Its inert, sealed muffle chamber isolates samples from combustion byproducts, making it suitable for ashing, calcination, heat treatment, and pre-conditioning per ASTM D3174 (ash content), ASTM D5142 (moisture/volatile matter), ISO 1171 (ash determination), and USP <281> residue on ignition procedures. All electrical components conform to IEC 61010-1 Edition 3 for laboratory equipment safety. The furnace supports audit-ready operation under FDA 21 CFR Part 11 when paired with validated data acquisition software (optional).
Software & Data Management
The built-in controller supports USB export of time-temperature profiles and event logs (start/stop, alarms, setpoint changes) in CSV format. Optional RS485 Modbus RTU interface enables integration into centralized lab management systems (e.g., LabVantage, Thermo Fisher SampleManager) for automated batch tracking and electronic record retention. Firmware includes configurable password-protected user levels (operator, technician, administrator) and timestamped audit trails for all parameter modifications—aligned with ALCOA+ data integrity principles.
Applications
- Coal and coke analysis: Determination of moisture, volatile matter, fixed carbon, ash content, ash fusion temperature, and elemental composition (per ISO 19579, ASTM D3172–D3176).
- Environmental testing: Gravimetric analysis of total suspended solids (TSS), total dissolved solids (TDS), and heavy metal residue after acid digestion (EPA Method 3010A, ISO 11923).
- Pharmaceutical QC: Residue on ignition (USP <281>), loss on drying (USP <731>), and excipient thermal stability screening.
- Cement and ceramics R&D: Sintering trials, phase transformation studies, and binder burnout in green-body processing.
- Petroleum products: Conradson carbon residue (ASTM D189), microcarbon residue (ASTM D4530), and coke yield quantification.
FAQ
What is the maximum continuous operating temperature?
The TE0712 is rated for continuous operation at 1100 °C, with short-term excursions to 1200 °C permitted for ≤30 minutes per cycle.
Does the furnace support GLP-compliant data recording?
Yes—when used with optional Modbus-enabled data loggers and validated software, full electronic records with user authentication, timestamps, and change history meet GLP Annex 11 and 21 CFR Part 11 requirements.
Can I program multi-step thermal cycles?
Yes—the 30-stage programmable controller allows independent ramp rates, soak durations, and cooling profiles, with auto-restart after power interruption.
What thermocouple type is used, and is calibration traceable?
K-type thermocouples are factory-installed and calibrated against NIST-traceable standards; certificate of calibration is provided with each unit.
Is the furnace compatible with inert or reducing atmospheres?
The standard model is air-atmosphere only; optional quartz tube inserts with gas inlet/outlet ports (N₂, Ar, H₂/N₂ mixtures) are available for controlled-atmosphere applications.
