Chemn TFH-1200-30-220 Miniature Assisted Tube Furnace
| Brand | Chemn |
|---|---|
| Origin | Anhui, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | TFH-1200-30-220 |
| Instrument Type | Horizontal Tube Furnace |
| Max Temperature | 1200 °C (short-term), 1100 °C (rated) |
| Temperature Control Accuracy | ±1 °C |
| Max Power | 1.5 kW |
| Heating Rate (to max temp) | ≤10 °C/min |
| Heating Method | Resistance Wire (HRE alloy, supplied by Shougang Beijing) |
| Chamber Dimensions | Φ80 × 220 mm |
| Hot Zone Length | 220 mm |
| Uniform Temperature Zone Length | 60–80 mm |
| Tube Compatibility | Φ30 mm or Φ50 mm × 500 mm quartz/ceramic tubes |
| External Dimensions | 340 × 320 × 380 mm |
| Net Weight | 16 kg |
| Cooling | Forced-air dual-shell system |
| Surface Temp (at 1100 °C operation) | <60 °C |
| Atmosphere Options | Air, inert (N₂, Ar), reducing (H₂/N₂), vacuum (with optional pump) |
| Temperature Programming | 30-segment ramp/soak profiles |
Overview
The Chemn TFH-1200-30-220 Miniature Assisted Tube Furnace is a compact, horizontally oriented high-temperature thermal processing system engineered for precision-controlled heat treatment under controlled atmospheres. It operates on the principle of resistive heating via high-stability HRE (Fe–Cr–Al) alloy heating elements embedded within a multi-layer insulation architecture composed of polycrystalline alumina fiber. This configuration ensures rapid thermal response, excellent radial and axial temperature uniformity across its 60–80 mm isothermal zone, and minimal thermal inertia—critical for reproducible sintering, annealing, calcination, and reduction protocols in research-scale synthesis. Designed for integration into glovebox systems or standalone benchtop workflows, the furnace supports both ambient-pressure inert/reducing gas environments and vacuum operation (when paired with compatible vacuum pumps and feedthroughs), complying with standard laboratory safety and materials compatibility requirements for ceramic, metallic, and semiconductor precursor processing.
Key Features
- Integrated intelligent temperature controller with 30 programmable ramp-and-soak segments, enabling complex thermal profiles for crystallization kinetics, phase transformation studies, and multi-step reaction sequences.
- ±1 °C temperature control accuracy over the full operating range (room temperature to 1100 °C continuous, 1200 °C short-term), validated per ASTM E220 calibration methodology using NIST-traceable thermocouples.
- Dual-shell stainless steel housing with forced-air cooling channels maintains external surface temperature below 60 °C during sustained operation at 1100 °C—meeting IEC 61000-3-2 harmonic emission and EN 61010-1 personnel safety standards.
- High-efficiency polycrystalline alumina fiber insulation (≥1700 °C rated) minimizes standby power consumption and enables heating rates up to 10 °C/min without thermal overshoot or gradient instability.
- Standard tube interface accommodates interchangeable Φ30 mm or Φ50 mm × 500 mm quartz or high-purity alumina tubes, with optional flanged end caps, gas inlet/outlet ports, and water-cooled vacuum feedthroughs.
- Comprehensive safety architecture includes independent over-temperature cutoff (OTC), real-time heater circuit monitoring, and automatic power disconnection upon door/tube seal breach detection.
Sample Compatibility & Compliance
The TFH-1200-30-220 is routinely deployed in academic and industrial laboratories for thermal processing of powders, thin films, nanowires, catalysts, battery electrode materials, and pre-ceramic polymers. Its uniform hot zone and precise atmosphere control support method development aligned with ISO 80004-13 (nanomaterials terminology), ASTM C1171 (ceramic fiber classification), and USP <631> (thermal analysis of pharmaceutical excipients). When operated with certified gas delivery systems and calibrated pressure transducers, it satisfies GLP documentation requirements for thermal stability testing per ICH Q1A(R2). Vacuum-compatible configurations meet ISO 27462 specifications for residual gas analysis readiness.
Software & Data Management
The embedded PID controller supports RS485 Modbus RTU communication for integration with LabVIEW™, MATLAB®, or custom SCADA platforms. Optional Chemn DataLog Pro software provides time-stamped temperature logging (0.1 s resolution), profile validation reports, audit trail generation, and electronic signature capability compliant with FDA 21 CFR Part 11 Annex 11 requirements. All temperature setpoints, actual readings, alarm events, and power status are recorded with immutable timestamps and user ID tagging—enabling full traceability for quality assurance and regulatory submissions.
Applications
- Controlled-atmosphere sintering of Li-ion battery cathode precursors (e.g., NMC, LFP) with oxygen partial pressure regulation.
- Vacuum annealing of graphene oxide films to tune sp²/sp³ carbon ratios and sheet resistance.
- Carbothermal reduction of metal oxides (e.g., SnO₂ → Sn, MoO₃ → Mo) under Ar/H₂ mixtures.
- Thermal decomposition studies of MOFs and COFs under programmed heating conditions.
- Pre-sintering of dental zirconia compacts prior to HIP consolidation.
- Calibration verification of thermocouples and infrared pyrometers in accredited metrology labs.
FAQ
What tube materials are compatible with the TFH-1200-30-220?
Quartz (up to 1100 °C), high-purity alumina (up to 1650 °C), and silicon carbide (up to 1400 °C) tubes with outer diameters of Φ30 mm or Φ50 mm and lengths up to 500 mm are mechanically and thermally compatible.
Can this furnace be used under vacuum?
Yes—when equipped with vacuum-rated end flanges, O-ring seals (Viton® or Kalrez®), and a compatible two-stage rotary vane or turbomolecular pump, it achieves base pressures down to 10⁻³ mbar.
Is the temperature controller compliant with 21 CFR Part 11?
The base unit supports data export via USB; full Part 11 compliance—including audit trails, electronic signatures, and role-based access—is enabled only with the optional Chemn DataLog Pro software and associated server configuration.
What maintenance is required for long-term reliability?
Annual inspection of heating element continuity, thermocouple calibration verification, and cleaning of air intake filters are recommended. No lubrication or consumable replacement is required under normal usage conditions.
Does the furnace include gas flow control hardware?
No—gas mass flow controllers (MFCs), pressure regulators, and exhaust scrubbers are customer-supplied accessories; Chemn offers compatible manifold kits upon request.
