BEQ BTF-1200C-R 1200°C Single-Zone Rotating Tube Furnace
| Brand | BEQ |
|---|---|
| Origin | Anhui, China |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | BTF-1200C-R |
| Instrument Type | Horizontal Rotating Tube Furnace |
| Max Temperature | 1200°C |
| Continuous Operating Temperature | ≤1100°C |
| Temperature Control Accuracy | ±1°C |
| Max Power | 3 kW |
| Heating Rate (to Max Temp) | ≤10°C/min |
| Heating Method | Resistance Wire (Fe-Cr-Al Alloy) |
| Heating Zone Length | 440 mm |
| Uniform Temperature Zone Length | 200 mm |
| Tube Rotation Speed | 3–13 rpm (adjustable) |
| Tilt Angle Range | 0–40° (adjustable) |
| Tube Dimensions | Dual-Diameter Quartz Tube — Ø60×420 mm (ends), Ø100×360 mm (center), Total Length: 1200 mm |
| Vacuum Level (with Mechanical Pump) | 0.5 Pa |
| Ultimate Vacuum (DRV10 Pump, Cold/Empty) | 5×10⁻¹ Pa |
| Pressure Gauge Range | −0.1 to 0.15 MPa |
| Control System | Fuzzy PID + Self-Tuning, 30-Stage Programmable Controller |
| Safety Features | Over-Temperature Alarm, Thermocouple Break Detection |
| Power Supply | AC 208–240 V, Single Phase, 50/60 Hz |
| Main Drive Motor Power | 0.04 kW |
| Linear Actuator Power | 0.04 kW |
| Overall Dimensions (Furnace Only) | 910×383×510 mm |
| With Tube Assembly | 1300×600×1230 mm |
| Packaging (Wooden Crate) | 1150×530×810 mm |
| Net Weight | 90 kg |
| Gross Weight | 150 kg |
Overview
The BEQ BTF-1200C-R is a precision-engineered single-zone rotating tube furnace designed for controlled thermal processing of powder and granular materials under inert, reducing, or vacuum atmospheres. It operates on the principle of resistive heating via high-stability Fe-Cr-Al alloy resistance wire elements, coupled with continuous 360° rotation of the quartz reaction tube—ensuring uniform heat transfer, enhanced particle mixing, and minimized thermal gradients across the sample bed. The furnace’s dual-diameter quartz tube (Ø60 mm at ends, Ø100 mm in center) integrates internal quartz baffles to promote consistent tumbling and prevent material stratification during calcination or drying. Its adjustable tilt mechanism (0–40°) facilitates gravity-assisted loading and unloading, while the integrated K-type thermocouple and fuzzy PID controller deliver stable temperature regulation within ±1°C over its 200 mm uniform zone—critical for reproducible solid-state synthesis and thermal treatment protocols in battery materials R&D.
Key Features
- Continuous 360° tube rotation (3–13 rpm, infinitely adjustable) with quartz baffle design for homogeneous powder mixing and improved sintering uniformity
- Motorized tilt adjustment (0–40°) enabling ergonomic sample handling and complete discharge without manual inversion
- Robust stainless-steel quick-connect flange system with silicone O-ring sealing—compatible with standard KF25 vacuum/gas fittings
- Fully programmable 30-segment temperature profile controller with auto-tuning capability and real-time ramp/soak logic
- Integrated safety architecture: independent over-temperature cutoff, thermocouple break detection, and audible/visual fault alerts
- Modular vacuum compatibility: factory-ready interface for optional DRV10 rotary vane pump (10 m³/h, 5×10⁻¹ Pa ultimate vacuum)
- Low-profile mechanical pressure gauge (−0.1 to 0.15 MPa) for real-time absolute and differential pressure monitoring during gas-flow or vacuum operations
Sample Compatibility & Compliance
The BTF-1200C-R is optimized for non-corrosive, non-acidic powders and granules—including lithium-ion battery cathode/anode precursors (e.g., LiCoO₂, NMC, graphite), metal oxides, ceramic precursors, and catalyst supports. It is not rated for use with halogenated, sulfur-containing, or strongly acidic gases (e.g., HCl, HF, SO₂); exposure to such chemistries voids warranty and risks quartz tube degradation and seal failure. All operational parameters comply with IEC 61000-6-2 (EMC immunity) and IEC 61000-6-4 (EMC emission) standards. When configured with audit-trail-capable data logging (via optional RS485/Modbus interface), the system supports GLP-aligned documentation for QC laboratories operating under ISO/IEC 17025 or FDA 21 CFR Part 11 requirements—provided user-defined validation protocols are implemented.
Software & Data Management
The furnace employs an embedded microcontroller-based temperature management system with local LCD interface and tactile navigation. While no proprietary PC software is bundled, the unit supports analog voltage output (0–5 V) and Modbus RTU over RS485 for integration into centralized lab automation platforms (e.g., LabVIEW, DeltaV, or custom SCADA). Optional data loggers can record temperature, rotation speed, tilt angle, and pressure at user-defined intervals (≥1 sec resolution), generating CSV files compatible with statistical process control (SPC) tools. Firmware updates are performed via USB port; all calibration constants (including thermocouple cold-junction compensation) are stored in non-volatile memory with write-protection to ensure traceability across maintenance cycles.
Applications
- Thermal synthesis and annealing of cathode active materials (e.g., layered oxides, polyanion compounds) under Ar/N₂ flow
- Carbon coating and graphitization of anode composites via controlled pyrolysis in inert atmosphere
- Pre-sintering of solid electrolyte powders (e.g., LLZO, LATP) prior to hot pressing
- Moisture removal and binder burnout from tape-cast electrodes without cracking or delamination
- Controlled oxidation/reduction of transition metal precursors for catalytic nanoparticle formation
- Thermogravimetric pre-treatment studies where rotational homogeneity eliminates settling artifacts seen in static furnaces
FAQ
What is the maximum allowable internal pressure inside the quartz tube?
The absolute internal gauge pressure must not exceed 0.02 MPa (20 kPa). Exceeding this limit risks catastrophic quartz fracture or flange ejection. Always use a calibrated pressure-reducing valve (range: 0.01–0.1 MPa) upstream of the inlet.
Can this furnace be used with hydrogen or ammonia atmospheres?
Yes—provided appropriate leak-checking, ventilation, and explosion-proof infrastructure are in place per NFPA 55 and local jurisdictional codes. BEQ does not supply or certify gas-handling accessories for flammable gases.
Is the 1200°C rating suitable for continuous operation?
No. The furnace is rated for intermittent use up to 1200°C; sustained operation above 1100°C accelerates heating element aging and compromises long-term temperature uniformity.
Does the rotation mechanism support variable direction (clockwise/counter-clockwise)?
No—the motor drives unidirectional rotation only. Reversal is not supported due to mechanical coupling design and lack of bidirectional encoder feedback.
Are quartz tube replacements covered under warranty?
No. Quartz tubes, K-type thermocouples, silicone seals, and crucibles are consumables excluded from the 12-month limited warranty per Section 1 of the Terms of Sale.
