Hebei Jihepu SX2-8-10G Benchtop Muffle Furnace
| Brand | Hebei Jihepu |
|---|---|
| Origin | Shandong, China |
| Model | SX2-8-10G |
| Type | Box-Type Resistance Furnace |
| Max Temperature | RT–1000 °C (Continuous Use ≤900 °C) |
| Temperature Uniformity | ±1 °C |
| Rated Power | 8 kW |
| Heating Rate (to max temp) | ≤15 °C/min |
| Heating Element | Fe-Cr-Al Alloy Wire ("Ganghua" Brand) |
| Internal Chamber Dimensions | 400 × 250 × 160 mm (L×W×H) |
| Chamber Volume | 16 L |
| Voltage | AC 380 V / 50 Hz |
| External Dimensions | 810 × 570 × 760 mm (L×W×H) |
Overview
The Hebei Jihepu SX2-8-10G is a benchtop box-type muffle furnace engineered for reliable, repeatable high-temperature thermal processing in academic laboratories, quality control environments, and small-scale industrial R&D settings. It operates on resistive heating principles, utilizing Fe-Cr-Al alloy heating elements embedded within a thermally insulated chamber to achieve precise temperature control across a working range from ambient to 1000 °C. Designed for continuous operation up to 900 °C, the furnace maintains thermal stability and spatial uniformity essential for ashing, calcination, sintering, heat treatment of ceramics and metals, and standardized thermal testing procedures. Its robust steel housing, integrated refractory brick lining (G-series standard formulation), and patented multi-point door sealing system minimize thermal leakage and ensure operator safety during extended duty cycles.
Key Features
- One-piece structural design with reinforced welded steel frame and double-layer insulation—outer shell remains below 50 °C at maximum operating temperature.
- Patented multi-directional door sealing mechanism ensures gas-tight closure, preventing heat loss and maintaining consistent internal atmosphere integrity.
- High-stability “Ganghua” brand Fe-Cr-Al heating wire—certified for long service life under cyclic thermal stress and oxidation resistance up to 1000 °C.
- Precision digital temperature controller with ±1 °C accuracy across the full operating range; supports optional upgrade to 30- or 60-segment programmable controllers compliant with GLP documentation requirements.
- Optimized airflow path and symmetrical element layout contribute to ±5 °C temperature uniformity (measured per ASTM E2203) within the 16 L chamber volume.
- Standard configuration includes over-temperature protection, automatic power cutoff, and grounded chassis for electrical safety per IEC 61000-6-3 and GB/T 12801.
Sample Compatibility & Compliance
The SX2-8-10G accommodates crucibles, ceramic boats, quartz trays, and metal sample holders up to 400 mm wide × 250 mm deep × 160 mm high. It is compatible with common laboratory consumables including alumina, silicon carbide, and stainless-steel containers rated for ≥1000 °C service. The furnace meets baseline requirements for ISO/IEC 17025-accredited labs performing thermal gravimetric analysis (TGA) sample prep, ASTM D3174 ash content determination, and USP heavy metals residue testing. While not intrinsically rated for inert or reducing atmospheres, optional flange-mounted gas inlet/outlet ports (accessory) enable nitrogen purging for oxygen-sensitive applications.
Software & Data Management
The base unit features a non-programmable digital PID controller with front-panel keypad and LED display. For traceable thermal profiles, users may integrate an optional 30- or 60-segment programmable controller equipped with RS485 Modbus RTU output. This interface supports real-time data logging via third-party SCADA systems or dedicated furnace monitoring software, enabling audit-ready records aligned with FDA 21 CFR Part 11 electronic signature and data integrity guidelines. All temperature setpoints, ramp rates, hold durations, and actual chamber readings are timestamped and exportable as CSV files for QA review and regulatory submission.
Applications
- Ash content determination in food, feed, and pharmaceutical raw materials (AOAC 942.05, ISO 2171).
- Calcination of catalyst precursors, battery cathode materials, and metal oxide powders prior to XRD or BET analysis.
- Heat treatment of metallurgical samples for microstructural stabilization before metallographic examination.
- Pre-drying and conditioning of filter papers, silica gel, and desiccants in environmental testing labs.
- Thermal cycling validation of thermal interface materials (TIMs) and encapsulants used in electronics packaging.
- Residue-on-ignition (ROI) assays for inorganic impurity screening in USP and EP monographs.
FAQ
What is the recommended maintenance interval for the heating elements?
Under normal continuous use at ≤900 °C, the Fe-Cr-Al heating wires require inspection every 500 operational hours; replacement is typically needed after 3,000–5,000 hours depending on thermal cycling frequency and atmosphere.
Can this furnace be used for annealing stainless steel components?
Yes—provided parts are placed on ceramic setters and heated within the 800–950 °C range with controlled cooling rates; however, prolonged exposure above 900 °C may accelerate element degradation.
Is the furnace compatible with external data acquisition systems?
Yes—via optional RS485 Modbus RTU interface; firmware supports polling of current temperature, setpoint, and status flags at user-defined intervals.
Does the unit include calibration documentation?
A factory-assembled NIST-traceable temperature verification report (at 500 °C and 900 °C) is provided with each shipment; field recalibration using Class A PT100 probes is supported per ISO/IEC 17025 clause 6.5.
What safety certifications does the SX2-8-10G carry?
It complies with GB 4706.1 (China’s household and similar electrical appliances safety standard) and incorporates dual independent over-temperature cut-offs meeting IEC 60519-2 requirements for industrial heating equipment.
