Yoyilab SX2-4-10 Benchtop Muffle Furnace
| Brand | Yoyilab |
|---|---|
| Origin | Shanghai, China |
| Manufacturer | Yes |
| Type | Box-Type Resistance Furnace |
| Model | SX2-4-10 |
| Max Temperature | 1000 °C |
| Temperature Control Accuracy | ±3 °C |
| Rated Power | 4 kW |
| Heating Method | Electric (Ni-Cr Wire) |
| Internal Dimensions | 200 × 300 × 120 mm |
| Nominal Volume | 7 L |
| Control Interface | 4.3″ LCD with PID Algorithm |
| Temperature Range | RT + 50 to 1000 °C |
| Thermocouple Type | K |
| Safety Features | Over-temperature alarm, door-interlock power cutoff, leakage protection, over-current/over-voltage protection |
| Power Supply | 220 V / 50 Hz |
Overview
The Yoyilab SX2-4-10 is a benchtop muffle furnace engineered for precision thermal processing in analytical laboratories, materials research facilities, and quality control environments. Operating on the principle of resistive heating via high-purity nickel-chromium (Ni-Cr) alloy heating elements, it delivers uniform and stable temperature distribution across its insulated chamber—critical for reproducible heat treatment protocols. Designed to meet the stringent demands of routine and method-driven applications—including ashing, calcination, sintering, annealing, and thermal decomposition—the SX2-4-10 maintains consistent thermal homogeneity within ±3 °C of setpoint under steady-state conditions. Its compact footprint (460 × 630 × 500 mm) and integrated control architecture eliminate external controller cabinets, reducing spatial requirements while enhancing operational continuity. The furnace conforms to general-purpose laboratory safety standards for Class I electrical equipment and incorporates passive thermal insulation using refractory brick linings to minimize surface temperature rise and energy loss.
Key Features
- Integrated 4.3-inch LCD interface with intuitive menu navigation for simultaneous display of set temperature, real-time chamber temperature, and remaining hold time
- Microprocessor-based PID temperature control system with 1 °C resolution, enabling precise ramp-hold profiles and minimizing overshoot during thermal cycling
- Robust construction featuring cold-rolled steel outer casing with high-temperature baked enamel finish for long-term corrosion resistance and mechanical durability
- Comprehensive electrical safety suite: over-temperature cut-off, door-activated power interruption, ground-fault leakage detection, and dual-stage over-current protection
- Power-fail recovery function that retains user-defined parameters and resumes operation upon grid restoration, preserving experimental integrity
- One-piece monolithic furnace chamber design eliminates joint gaps, improving thermal efficiency and reducing contamination risk from ambient air infiltration
Sample Compatibility & Compliance
The SX2-4-10 accommodates standard crucibles (alumina, quartz, stainless steel), ceramic boats, and metal trays up to 200 mm wide × 300 mm deep × 120 mm high. Its muffle configuration isolates samples from direct contact with heating elements and combustion byproducts, ensuring chemical purity during ashing (e.g., ASTM D3174, ISO 1171), residue quantification (USP ), or pre-treatment for elemental analysis (ICP-OES/AAS sample prep). While not certified to specific regulatory frameworks such as FDA 21 CFR Part 11 or GLP/GMP out-of-the-box, the furnace supports audit-ready workflows when paired with optional RS485 data logging (with timestamped temperature records) and programmable multi-segment controllers compliant with ISO/IEC 17025 documentation requirements.
Software & Data Management
The base unit operates via embedded firmware without external PC dependency. Optional accessories expand digital functionality: an RS485 communication module enables integration with LabVIEW, MATLAB, or custom SCADA systems for remote monitoring and automated data capture. A dedicated software package (sold separately) provides calibration traceability logs, exportable CSV reports, and configurable alarm thresholds. For regulated environments, the optional programmable controller supports up to 30 segment ramps with dwell times, meeting procedural consistency needs outlined in ISO 8573-1 or ASTM E1112 for thermal validation studies.
Applications
- Quantitative ash content determination in food, feed, pharmaceutical excipients, and environmental solids per AOAC 942.05 and EPA Method 1650
- Pre-sintering of ceramic green bodies and post-processing of oxide-based nanomaterials (e.g., TiO₂, ZnO) at controlled ramp rates
- Thermal gravimetric pre-conditioning of catalyst supports prior to BET surface area analysis
- Controlled oxidation of metallic specimens for corrosion rate evaluation (ASTM G1–03)
- Heat treatment of metallurgical samples for microstructural stabilization prior to metallographic examination
- Low-mass sample drying and dehydration where moisture-sensitive atmospheres are unnecessary
FAQ
What thermocouple type is used for temperature sensing?
The furnace employs a calibrated K-type thermocouple mounted in direct contact with the furnace chamber wall near the load zone.
Is inert atmosphere operation supported?
The standard SX2-4-10 is configured for air atmosphere only; optional flanged ports and gas inlet/outlet fittings can be factory-installed for nitrogen or argon purging.
Can the furnace be programmed for multi-step thermal cycles?
Yes—when equipped with the optional programmable temperature controller (up to 30 segments), users may define ramp rates, soak durations, and cooling profiles.
What maintenance is required for long-term reliability?
Annual inspection of heating element continuity, thermocouple calibration verification, and cleaning of ventilation grilles are recommended; no lubrication or consumable replacement is needed under normal use.
Does the unit comply with CE or UL safety directives?
The SX2-4-10 meets general IEC 61010-1:2010 requirements for laboratory electrical equipment; CE marking is available upon request with additional conformity documentation.
