ZHONGHUAN FURNACE ZHX-G02123 1200°C Energy-Efficient Box-Type Muffle Furnace

Overview

The ZHONGHUAN FURNACE ZHX-G02123 is a precision-engineered, energy-efficient box-type muffle furnace designed for controlled high-temperature thermal processing in research and quality assurance environments. Operating up to 1200°C, it employs resistive heating via high-stability 0Cr27Al7Mo2 alloy wire elements embedded within a vacuum-formed polycrystalline mullite fiber insulation chamber—delivering exceptional thermal uniformity (±1°C) and up to 50% energy reduction compared to conventional refractory brick furnaces. Its fully enclosed muffle architecture isolates samples from combustion byproducts and external atmosphere, ensuring reproducible oxidation, sintering, annealing, and calcination outcomes under inert, air, or mildly oxidizing conditions. The furnace complies with fundamental thermal safety and electrical safety requirements aligned with IEC 61000-6-3 (EMC emissions) and GB/T 5169.10–2017 (fire hazard testing for electrical equipment), making it suitable for GLP-compliant laboratories and ISO/IEC 17025-accredited testing facilities.

Key Features

• High-efficiency thermal insulation using vacuum-formed polycrystalline mullite fiber—minimizes heat loss and ensures radial and axial temperature uniformity across the 2 L chamber.
• Intelligent dual-stage cooling system: integrated thermal sensors trigger an automatic exhaust fan when external surface temperature exceeds 50°C, maintaining safe operator interface temperatures during extended operation.
• Comprehensive electrical safety architecture: door-interlocked power cutoff, independent over-temperature cutout (settable up to 1250°C), and residual-current device (RCD)-based leakage protection conforming to IEC 61008-1.
• Advanced PID-based temperature controller with auto-tuning capability; supports both fixed-setpoint operation and multi-segment programmable ramp-soak profiles (up to 30 segments standard, 40 segments with optional imported module).
• RS-485 communication interface compliant with Modbus RTU protocol—enables integration into centralized lab monitoring systems for remote supervision of up to 200 units.
• Modular control options: standard digital LED controller; optional 7-inch color touchscreen with Chinese/English UI, real-time curve plotting, USB data export (CSV), and LAN-enabled remote access via local network.

Sample Compatibility & Compliance

The ZHX-G02123 accommodates diverse sample geometries—including crucibles (alumina, quartz, graphite), ceramic green bodies, metal foils, powder compacts, and thin-film substrates—within its 200 × 120 × 80 mm usable chamber. Its sealed muffle design prevents cross-contamination and supports ASTM C865 (sintering shrinkage), ASTM E831 (thermal expansion), and ISO 11358 (thermogravimetric analysis support) workflows. All electrical components meet CE-marked low-voltage directive (LVD) and electromagnetic compatibility (EMC) standards. While not inherently FDA 21 CFR Part 11 compliant, audit-ready data logging (with timestamped setpoints, actual temperatures, and alarm events) can be achieved using validated third-party SCADA software connected via RS-485.

Software & Data Management

The furnace’s RS-485 port enables bidirectional communication with Windows-based supervisory software—capable of synchronizing setpoint changes, polling real-time thermocouple readings (Type K), archiving historical temperature logs at user-defined intervals (1–60 sec), and generating PDF/Excel reports traceable to ISO/IEC 17025 documentation requirements. Optional touchscreen controllers feature built-in non-volatile memory for ≥10,000 data points, configurable alarm thresholds, and password-protected parameter editing—supporting basic 21 CFR Part 11 principles (user authentication, electronic signatures, audit trail) when deployed with supplementary validation documentation.

Applications

This furnace serves as a primary thermal platform for materials science R&D and industrial QA/QC protocols, including but not limited to: sintering of oxide ceramics (e.g., Al₂O₃, ZrO₂), densification of metal matrix composites, annealing of stainless steel and titanium alloys, oxidation kinetics studies of Ni-based superalloys, thermal treatment of perovskite precursors for photovoltaics, pre-firing of battery cathode materials (LiCoO₂, NMC), and ash content determination per AOAC 942.05 and ASTM D3174. Its rapid 20-minute ramp to 1200°C and stable dwell performance make it ideal for iterative process development cycles requiring high throughput and repeatability.

FAQ

What thermocouple type is used for internal temperature sensing?
A calibrated Type K (Chromel-Alumel) thermocouple is factory-installed and positioned adjacent to the chamber centerline for representative measurement.
Is the furnace compatible with inert gas purging?
Yes—two 6 mm BSP threaded ports (inlet and outlet) are provided on the rear panel for controlled argon or nitrogen flow; optional mass flow controller integration is supported.
Can the controller store multiple heating programs?
Standard configuration supports one active program; optional controllers retain up to 10 user-defined programs with name tagging and version timestamps.
What maintenance is required for long-term calibration stability?
Annual verification against a NIST-traceable reference thermometer is recommended; no routine heater or insulation replacement is needed under normal operating conditions (≤1150°C continuous use).
Does the unit include a certificate of conformance?
Yes—a factory-issued CoC documenting compliance with GB/T 10066.1–2004 (general safety for industrial electrothermal equipment) and measured temperature uniformity data is supplied with each shipment.