BEQ VTF-1200C-S-III-D50 Triple-Station Vertical Tube Furnace
| Brand | BEQ |
|---|---|
| Origin | Anhui, China |
| Model | VTF-1200C-S-III-D50 |
| Instrument Type | Vertical Tube Furnace |
| Max Temperature | 1200 °C |
| Continuous Operating Temperature | ≤1100 °C |
| Temperature Control Accuracy | ±1 °C |
| Max Heating Rate (to max temp) | ≤10 °C/min |
| Heating Element | Resistance Wire |
| Thermocouple Type | K-Type |
| Control Method | Intelligent Fuzzy PID with Auto-Tuning & 30-Stage Programmable Ramp/Soak |
| Total Power | ≤4 kW |
| Heating Zone Length | 240 mm |
| Internal Chamber Dimensions (L×W×H) | 950×800×1200 mm |
| Unit Weight | ~100 kg |
| Insulation Material | Lightweight Alumina Fiber |
Overview
The BEQ VTF-1200C-S-III-D50 is a triple-station vertical tube furnace engineered for precise, repeatable high-temperature thermal processing in research and quality control laboratories. Unlike conventional horizontal tube furnaces, its vertical orientation enables gravity-assisted sample loading/unloading and improved spatial separation of multiple independent reaction zones—ideal for comparative studies, parallel synthesis, or sequential thermal treatments under identical ambient conditions. The furnace operates on resistive heating principles, utilizing high-purity resistance wire embedded within lightweight alumina fiber insulation to achieve rapid thermal response and exceptional temperature uniformity across the 240 mm active heating zone. With a maximum rated temperature of 1200 °C and sustained operation up to 1100 °C, it supports applications ranging from ceramic sintering and catalyst calcination to CVD precursor decomposition and solid-state reaction kinetics.
Key Features
- Triple-station modular design allows simultaneous operation of three independent quartz or high-purity alumina reaction tubes—each with quick-release end flanges for rapid sample insertion and retrieval without thermal shutdown.
- Vertical single-zone configuration minimizes axial temperature gradients; K-type thermocouples provide real-time feedback to an intelligent fuzzy PID controller with auto-tuning capability, ensuring ±1 °C stability over full operating range.
- 30-stage programmable temperature profile support enables complex ramp-hold-cool sequences—including multi-step annealing, stepwise oxidation/reduction cycles, and controlled cooling rates down to 0.1 °C/min.
- Integrated safety architecture includes dual independent over-temperature cutoffs, thermocouple break detection, audible/visual alarm outputs, and hardware-based power interlock triggered by door position sensors.
- Fully enclosed chamber with low-thermal-mass alumina fiber insulation achieves ≤10 °C/min heating rate to 1200 °C while maintaining surface temperatures below 60 °C at ambient conditions—compliant with IEC 61000-6-3 EMC emission limits.
Sample Compatibility & Compliance
The VTF-1200C-S-III-D50 accommodates standard OD 25–100 mm quartz, fused silica, or recrystallized alumina tubes (custom diameters available upon request). Its vertical geometry supports both open-end and sealed-tube configurations with optional gas inlet/outlet manifolds for inert, reducing, or reactive atmospheres (N₂, Ar, H₂/N₂ mixtures, forming gas). All electrical and thermal subsystems conform to GB/T 13384 (Chinese General Requirements for Packing of Mechanical and Electrical Products) and meet CE marking prerequisites per EN 61000-6-2 (Immunity) and EN 61000-6-4 (Emission). While not certified to UL or CSA standards out-of-box, the unit’s control architecture supports integration into GLP/GMP environments via optional audit-trail-enabled data logging modules compliant with FDA 21 CFR Part 11 requirements when paired with validated PC software.
Software & Data Management
The embedded industrial control system records all operational parameters—including setpoint, actual temperature, power output, alarm status, and timestamp—at user-defined intervals (1–60 s). Data are stored locally on non-volatile flash memory (≥1 year retention at 1 Hz sampling) and exportable via USB 2.0 to CSV format without proprietary drivers. Optional Ethernet/Wi-Fi interface enables remote monitoring through Modbus TCP or OPC UA protocols, allowing synchronization with LIMS or MES platforms. No cloud dependency or vendor-hosted services are required; raw logs retain native SI units and adhere to ISO/IEC 17025 traceability guidelines when used with NIST-traceable calibration certificates.
Applications
- Thermal treatment of battery cathode precursors (e.g., LiCoO₂, NMC, LiFePO₄) under controlled oxygen partial pressure.
- Graphene oxide reduction and carbon nanotube growth via catalytic CVD at 700–1000 °C.
- High-temperature aging tests for electronic packaging materials per IPC-TM-650 2.6.25.
- Phase transformation studies in ferroelectric oxides (e.g., BaTiO₃, PZT) using in-situ XRD-compatible tube configurations.
- Preparation of metal-organic framework (MOF) derivatives and porous carbons via pyrolysis under nitrogen sweep.
FAQ
What is the maximum recommended continuous operating temperature?
Continuous operation is rated at ≤1100 °C to ensure long-term heater element integrity and thermocouple stability.
Can this furnace be operated under vacuum or controlled gas flow?
Yes—the front-access flange ports accept standard Swagelok or VCR fittings; vacuum compatibility up to 10⁻² mbar requires optional quartz tube sealing and vacuum-rated gaskets.
Is third-party calibration support available?
BEQ provides factory calibration reports traceable to CNAS-accredited labs; users may engage ISO/IEC 17025-certified service providers for on-site verification.
How is temperature uniformity verified across the heating zone?
Uniformity is characterized per ASTM E220 using a 5-point radial/axial thermocouple mapping protocol at 1000 °C; typical deviation is ±3 °C over the central 150 mm segment.
Does the controller support external analog setpoint input?
Yes—the RS485 Modbus RTU interface allows external PLC or DCS integration for cascade control loops, including feedforward compensation based on mass flow or pressure signals.
