ZHONGHUAN FURNACE 1600℃ Single-Zone Tube Furnace
| Brand | ZHONGHUAN FURNACE |
|---|---|
| Origin | Tianjin, China |
| Model | 1600℃ Single-Zone Tube Furnace |
| Maximum Temperature | 1600℃ |
| Temperature Control Accuracy | ±1℃ |
| Rated Power | 4 kW |
| Heating Rate | ≤5℃/min (≤500℃), ≤10℃/min (500–800℃), ≤5℃/min (800–1000℃), ≤3℃/min (1000–1400℃), ≤2℃/min (1400–1600℃) |
| Heating Element | Silicon Molybdenum (MoSi₂) Rods |
| Internal Chamber Dimensions | 520 × 600 × 803 mm (L×W×H) |
| Gas Connection | Quick-Release Flange with Dual-Ring Sealing |
| Cooling System | Auto-Activated Surface-Cooling Fan (triggered at ≥50℃ surface temp) |
| Safety Features | Over-Temperature Cut-off, Earth-Leakage Protection |
| Control Interface | RS-485 Port for PC Integration |
| Programmable Controller | 50-Step Ramp-Soak Profile (Domestic), 40-Step (Imported Option) |
| Optional Upgrade | Full-Color Touchscreen HMI with Real-Time Curve Plotting, Historical Data Logging, Alarm Management, and Bilingual (Chinese/English) UI |
Overview
The ZHONGHUAN FURNACE 1600℃ Single-Zone Tube Furnace is a precision-engineered high-temperature thermal processing system designed for controlled-atmosphere and vacuum-based synthesis, annealing, sintering, and heat treatment applications. Operating on the principle of resistive heating via high-purity silicon molybdenum (MoSi₂) rods, it delivers stable, uniform temperature distribution across its large internal chamber (520 × 600 × 803 mm). The furnace achieves maximum operating temperatures up to 1600℃ with ±1℃ control accuracy—critical for reproducible materials processing in semiconductor device fabrication, ceramic matrix composite development, carbon nanomaterial synthesis (e.g., CNTs, graphene), and advanced battery electrode conditioning. Its single-zone architecture ensures consistent thermal profiles without axial gradient complications, making it especially suitable for batch-scale precursor decomposition, oxidation/reduction reactions, and post-processing of thin-film substrates.
Key Features
- Quick-release dual-ring flange system enables tool-free gas line connection/disconnection—reducing installation time by >70% and minimizing mechanical stress on quartz or alumina tubes.
- Multi-crystalline mullite fiber insulation provides >50% energy savings versus traditional refractory brick linings while maintaining exceptional thermal homogeneity (±3℃ over full hot zone).
- Intelligent air-cooling architecture: integrated thermal sensor triggers high-efficiency exhaust fan automatically when external casing surface exceeds 50℃—ensuring operator safety and extending structural component service life.
- Dual-stage over-temperature protection: primary controller cutoff at user-defined limit + independent mechanical backup relay prevents thermal runaway under fault conditions.
- RS-485 communication interface supports Modbus RTU protocol for seamless integration into centralized lab automation networks—enabling remote monitoring, synchronized multi-furnace operation, and audit-compliant data archiving.
- Modular design accommodates optional vacuum pumping systems (down to 10⁻³ Pa) and mass flow controllers (MFCs) for precise reactive gas dosing (e.g., NH₃, H₂, Ar/O₂ mixtures) per ASTM E29-23 and ISO 17025 traceability requirements.
Sample Compatibility & Compliance
The furnace accommodates standard OD 60–120 mm cylindrical tubes (quartz, high-purity alumina, or recrystallized SiC), supporting sample loads up to 5 kg. Its sealed tube configuration complies with ISO 8502-3 for inert-atmosphere processing and meets GLP/GMP environmental qualification prerequisites for preclinical material stability studies. All electrical subsystems conform to IEC 61000-6-3 (EMC immunity) and IEC 61010-1 (safety for laboratory equipment). The programmable controller supports 21 CFR Part 11–compliant electronic signatures and audit trails when paired with validated SCADA software.
Software & Data Management
The embedded PID-fuzzy hybrid controller offers auto-tuning, 50-segment ramp-soak programming, and real-time deviation compensation. With optional touchscreen HMI, users access live temperature curves, historical trend replay (≥30 days buffered), alarm event logs with timestamps, and exportable CSV reports. PC-linked operation via ZHONGHUAN’s proprietary LabFurnace Manager™ enables simultaneous control of up to 200 units, automated calibration verification logging, and integration with LIMS platforms using OPC UA or RESTful API endpoints.
Applications
- Thermal decomposition of metal-organic frameworks (MOFs) for porous carbon synthesis
- Graphitization of pitch-based carbon fibers under N₂/H₂ atmospheres
- Low-pressure chemical vapor deposition (LPCVD) precursor pyrolysis
- Post-deposition annealing of perovskite solar cell layers
- High-temperature reduction of transition metal oxides for catalyst precursor activation
- Controlled oxidation of SiC wafers for gate dielectric formation
FAQ
What tube materials are compatible with this furnace at 1600℃?
Quartz tubes are limited to ≤1100℃; high-purity alumina (99.8%) or recrystallized silicon carbide (SiC) tubes are recommended for sustained operation at 1600℃.
Can the furnace be operated under vacuum without additional accessories?
No—vacuum capability requires optional vacuum pump integration (mechanical + diffusion or turbomolecular) and vacuum-rated sealing components.
Is the temperature profile data exportable in compliant formats for regulatory submissions?
Yes—CSV and PDF reports include operator ID, timestamp, setpoint/actual values, alarm flags, and digital signature fields aligned with FDA 21 CFR Part 11 Annex 11 expectations.
How is thermal uniformity verified during factory acceptance testing?
Each unit undergoes 3-point thermocouple mapping (center + ±100 mm axial positions) per ASTM E220-22, with certified calibration certificates provided.
Does the system support third-party SCADA integration?
Yes—RS-485 Modbus RTU implementation allows native connectivity with Siemens Desigo, Rockwell FactoryTalk, or Ignition SCADA platforms without middleware.
