Zhongke Aobo TL0910 Split-Body Box-Type Muffle Furnace
| Brand | Zhongke Aobo |
|---|---|
| Origin | Beijing, China |
| Model | TL0910 |
| Type | Box-Type Muffle Furnace |
| Max Temperature | 1000 °C |
| Temperature Control Accuracy | ±1 °C |
| Rated Power | 3000 W |
| Internal Chamber Dimensions | 300 × 200 × 150 mm (L × W × H) |
| Heating Method | Resistance Wire (Dual-Side Mounted) |
| Insulation Material | Ceramic Fiber Module |
| Weight | ~65 kg (unit only, controller separate) |
| Voltage/Frequency | 220 V AC / 50 Hz (16 A) |
Overview
The Zhongke Aobo TL0910 is a split-body, front-loading box-type muffle furnace engineered for precise high-temperature thermal processing in analytical, materials, and quality control laboratories. It operates on resistive heating principles, utilizing dual-side mounted high-temperature resistance wire elements embedded within a low-density ceramic fiber insulation chamber. This architecture enables rapid, uniform heat distribution and minimizes thermal lag—critical for applications requiring strict adherence to standardized thermal protocols such as ASTM E1131 (thermal gravimetric analysis), ISO 562 (determination of volatile matter in coal), or USP <281> (residue on ignition). Designed for continuous operation up to 1000 °C, the TL0910 complies with IEC 61000-6-3 (EMC emission standards) and meets structural safety requirements per EN 61000-6-2 for laboratory electrical equipment. Its modular split-body configuration separates the furnace chamber from the digital temperature controller, reducing thermal coupling to sensitive electronics and facilitating service access without full system shutdown.
Key Features
- Split-body architecture: Independent furnace chamber and intelligent controller unit improve thermal isolation, serviceability, and long-term calibration stability.
- Dual-side heating design: Two parallel resistance wire arrays ensure symmetrical temperature profiles across the 9 L chamber (300 × 200 × 150 mm), minimizing axial and radial gradients (< ±3 °C at 1000 °C under steady-state conditions).
- Ceramic fiber insulation: High-purity alumina-silica modules (density: ~128 kg/m³) provide superior thermal resistance, enabling ramp rates up to 15 °C/min (100 → 1000 °C in <30 min) and surface temperatures ≤55 °C during prolonged 1000 °C holds—meeting OSHA 1910.132 hand-proximity safety thresholds.
- Precision temperature control: Equipped with a programmable PID controller featuring 0.1 °C resolution, digital setpoint input, auto-tuning capability, and real-time deviation monitoring. Supports up to 30 segment ramp-soak programs.
- Integrated safety systems: Over-temperature cut-off (independent bimetallic switch), door-open interlock, ground-fault circuit interruption (GFCI), and thermal fuse protection conforming to IEC 60335-1 Class I appliance requirements.
- Modular exhaust interface: Standard rear-mounted 25 mm diameter vent port allows connection to fume extraction systems or optional inert gas inlet/outlet fittings (N₂, Ar) for controlled-atmosphere applications.
Sample Compatibility & Compliance
The TL0910 accommodates standard crucibles (alumina, platinum, silica), porcelain boats, and quartz sample holders. Its uniform heating zone (≥85% of chamber volume) supports ASTM C114 (cement chemical analysis), ISO 1171 (ash content in solid fuels), and EPA Method 29 (heavy metal determination in stack emissions). The furnace meets GLP documentation requirements through optional audit-trail-enabled data logging (via RS485/Modbus RTU interface). All electrical components comply with RoHS Directive 2011/65/EU and CE marking directives for laboratory instrumentation. No internal lubricants or organic binders are used in insulation assembly—ensuring zero outgassing interference during ashing or residue-on-ignition procedures.
Software & Data Management
While the base model features standalone digital control, the TL0910 supports integration into centralized lab networks via optional RS485 Modbus RTU communication. Third-party SCADA or LIMS platforms can poll real-time temperature, setpoint, power status, and alarm codes. For regulated environments, the optional data logger (sold separately) records timestamped temperature values at user-defined intervals (1–60 sec), generates CSV exports, and maintains electronic signatures compliant with FDA 21 CFR Part 11 Annex 11 requirements when paired with validated authentication protocols. Firmware updates are performed via USB interface with version-controlled checksum verification.
Applications
- Coal and biomass analysis: Determination of moisture, ash, volatile matter, fixed carbon, and ash fusion temperature per ISO 1171, ASTM D3174, and GB/T 212.
- Pharmaceutical QC: Residue-on-ignition testing (USP <281>), loss-on-drying (LOD), and catalyst recovery from API synthesis residues.
- Environmental testing: Total suspended solids (TSS) gravimetric analysis (EPA 160.2), heavy metal digestion residue ashing (EPA 3050B), and filter paper combustion in particulate matter studies.
- Ceramics & metallurgy: Sintering preforms, binder burnout, and thermal cycling of refractory test coupons under controlled air atmosphere.
- Academic research: Kinetic studies of thermal decomposition (e.g., CaCO₃ → CaO + CO₂), oxidation behavior of alloys, and calibration of thermocouples against fixed-point references.
FAQ
Is the TL0910 suitable for inert or reducing atmospheres?
Yes—when equipped with optional gas inlet/outlet ports and flow regulators, it supports N₂, Ar, or forming gas (5% H₂/95% N₂) purging. Note: Hydrogen use requires additional explosion-proof certification not included in standard configuration.
What maintenance is required for the heating elements?
Resistance wire elements are accessible via removable side panels; replacement takes <15 minutes with standard tools. Expected service life exceeds 3,000 hours at 1000 °C with proper ramp/soak cycling.
Can the controller be calibrated traceably to NIST standards?
Yes—the integrated K-type thermocouple input accepts external reference probes. Full system calibration (furnace + controller) can be performed using a certified portable dry-block calibrator meeting ISO/IEC 17025 requirements.
Does the furnace meet GMP documentation requirements for pharmaceutical labs?
Out-of-the-box, it provides basic operational qualification (OQ) support. With optional data logger and 21 CFR Part 11-compliant software, it satisfies IQ/OQ/PQ validation protocols for GMP-regulated thermal processes.
What is the warranty coverage and service support scope?
Standard 24-month parts-and-labor warranty covers manufacturing defects. Field service engineers in EU and North America provide remote diagnostics and on-site support under extended service agreements.
