Yoyi SX2-4-10A 1000°C Ceramic Fiber Muffle Furnace
| Brand | Yoyi |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | SX2-4-10A |
| Instrument Type | Box-Type Muffle Furnace |
| Max Temperature | 1000°C |
| Temperature Control Accuracy | ±1°C |
| Max Power | 4 kW |
| Heating Element | Nickel-Chromium (NiCr) Wire |
| Internal Dimensions (L×W×H) | 200 × 300 × 120 mm |
| Nominal Chamber Volume | 7.2 L |
Overview
The Yoyi SX2-4-10A is a high-performance ceramic fiber muffle furnace engineered for precise, repeatable thermal processing in research laboratories, materials science departments, and quality control environments. Operating on resistive heating principles via embedded NiCr wire elements, it delivers uniform temperature distribution across its insulated chamber—enabling controlled thermal treatments including ashing, calcination, sintering, annealing, and heat treatment of metals and ceramics. Its maximum operating temperature of 1000°C complies with standard thermal protocols defined in ASTM E1112 (Standard Practice for Calibrating Laboratory Furnaces) and ISO 8573-1 (for cleanroom-compatible thermal processing where applicable). The furnace’s lightweight ceramic fiber insulation—rated for continuous service up to 1260°C—ensures rapid thermal response and minimal thermal mass, distinguishing it from traditional refractory brick-lined units.
Key Features
- High-efficiency ceramic fiber insulation reduces power consumption by approximately 60% compared to conventional refractory muffle furnaces, achieving energy savings without compromising thermal stability.
- Double-layer chamber construction with ceramic fiber board lining ensures surface temperatures remain below 50°C at full 1000°C operation, meeting IEC 61000-3-2 harmonic emission standards and reducing operator burn risk.
- Microprocessor-based PID temperature controller with LCD interface supports multi-point setpoint programming, real-time temperature display, adjustable ramp/soak profiles, and over-temperature cut-off protection.
- Robust cold-rolled steel housing with phosphate conversion coating and electrostatic epoxy powder finish provides corrosion resistance and mechanical durability under routine laboratory use.
- Integrated safety architecture includes over-current, over-voltage, over-temperature, ground-fault, and short-circuit protection—fully compliant with UL 61010-1 and EN 61010-1 requirements for laboratory electrical equipment.
- Power-loss recovery function retains user-defined parameters during unexpected shutdowns, enabling automatic resumption upon power restoration per GLP-compliant data integrity guidelines.
Sample Compatibility & Compliance
The SX2-4-10A accommodates crucibles, boats, and sample holders made from alumina, quartz, silicon carbide, or stainless steel—compatible with ASTM C724 (ceramic microstructure analysis), ISO 1171 (ash content determination), and USP heavy metal testing procedures. Its sealed muffle design prevents atmospheric contamination during oxidation-sensitive processes, supporting applications in metallurgical phase analysis (per ASTM E3, E407), catalyst activation, and residue quantification (AOAC 990.11). All electrical and thermal performance specifications are validated under no-load conditions per IEC 60068-2-2 (dry heat testing), with ambient reference conditions of 20°C and 50% RH.
Software & Data Management
While the base unit operates via standalone PID controller, optional RS485 serial interface (available as accessory) enables integration with SCADA systems or custom LabVIEW/Python-based acquisition platforms. When paired with the programmable temperature controller add-on, users gain access to 30-segment ramp-soak programming, timestamped temperature logging, and CSV export functionality—supporting audit trails required under FDA 21 CFR Part 11 for regulated environments. Firmware updates maintain compatibility with evolving calibration traceability frameworks, including NIST-traceable thermocouple verification workflows.
Applications
- Thermal gravimetric analysis (TGA) sample preparation and pre-conditioning
- Sintering of oxide ceramics (e.g., Al₂O₃, ZnO) and advanced powders (LiFePO₄, TiO₂)
- Heat treatment of small-scale metallic components (annealing, stress relieving, tempering)
- Ash content determination in pharmaceutical excipients, foodstuffs, and environmental samples
- Glass annealing and nucleation studies requiring precise soak-hold cycles
- Pre-firing of sensor substrates and MEMS packaging materials
FAQ
What type of thermocouple is used for internal temperature sensing?
The furnace employs a Class 1 K-type thermocouple (Chromel-Alumel), calibrated to ±1.5°C accuracy over 0–1000°C range, mounted in direct contact with the chamber wall near the center plane.
Is the furnace suitable for inert or reducing atmospheres?
No—the SX2-4-10A is designed strictly for air atmosphere operation; optional gas inlet ports and purge fittings are not included. For controlled-atmosphere applications, consult the SX2-G series variants.
Can the unit be validated for IQ/OQ/PQ protocols?
Yes—its stable thermal profile, digital controller logging capability (with optional software), and documented calibration traceability support formal validation against ISO/IEC 17025 and GMP Annex 15 requirements.
What maintenance is required for long-term reliability?
Annual inspection of heating element continuity, thermocouple calibration verification, and ceramic fiber integrity assessment are recommended; no lubrication or consumable replacement is needed under normal usage.
Does the furnace meet CE marking requirements?
Yes—it carries CE marking per Directive 2014/30/EU (EMC) and 2014/35/EU (LVD), with test reports available upon request from Yoyi’s technical documentation portal.
