Yoyilab SX2-2.5-10 Benchtop Muffle Furnace

Overview

The Yoyilab SX2-2.5-10 is a compact, benchtop muffle furnace engineered for precision thermal processing in research laboratories, quality control environments, and small-scale industrial R&D settings. Based on resistive heating principles, it employs a high-stability nickel-chromium (NiCr) wire heating element embedded within a monolithic refractory brick chamber—ensuring uniform radial and axial temperature distribution across its 2 L cavity. The furnace operates within a calibrated range of ambient +50 °C to 1000 °C, meeting the thermal requirements for ashing, calcination, sintering, annealing, and heat treatment of metallic, ceramic, and composite samples. Its integrated microprocessor-based PID controller delivers stable thermal regulation with ±3 °C accuracy over extended dwell periods, minimizing thermal drift during critical hold cycles. Designed for compliance with general laboratory safety and electrical standards (IEC 61010-1), the unit supports reproducible thermal protocols essential for method validation under GLP or ISO/IEC 17025 frameworks.

Key Features

• Benchtop footprint (440 × 460 × 500 mm W×D×H) optimized for space-constrained labs without compromising structural rigidity or thermal insulation integrity.
• Monolithic refractory brick chamber with seamless internal geometry—eliminates cold spots and ensures consistent heat transfer to samples placed at any location within the 120 × 200 × 80 mm usable volume.
• 4.3-inch backlit LCD interface with menu-driven navigation: real-time display of setpoint, actual chamber temperature, elapsed time, and remaining hold duration—all visible simultaneously.
• Dual-layer safety architecture: hardware-level door interlock cuts power instantly upon opening; independent over-temperature cutoff circuit triggers at user-defined thresholds above nominal setpoint.
• Power-fail recovery function retains all active parameters—including ramp rates, soak times, and temperature profiles—enabling uninterrupted operation after grid interruption or system reboot.
• Cold-rolled steel outer casing with high-temperature baked enamel finish resists corrosion, abrasion, and thermal discoloration under continuous duty cycling.

Sample Compatibility & Compliance

The SX2-2.5-10 accommodates crucibles (alumina, quartz, stainless steel), petri dishes, sample boats, and small-component fixtures up to 100 mm in height. It supports standardized procedures including ASTM E121-22 (ash content determination), ISO 1171 (determination of ash in coal and coke), and USP heavy metals testing via dry ashing. While not certified to UL or CE for standalone commercial deployment, its electrical design adheres to IEC 61010-1 Edition 3 safety requirements for laboratory equipment. All thermal profiles are traceable via onboard logging (when equipped with RS485 interface), supporting audit readiness for FDA 21 CFR Part 11–aligned data integrity practices when paired with compliant third-party software.

Software & Data Management

The base model includes local parameter storage and real-time monitoring only. Optional RS485 serial interface enables bidirectional communication with external PCs running custom or vendor-supplied SCADA applications. When integrated, users can export timestamped temperature logs (.CSV), configure multi-segment programmable ramps (up to 30 steps), and synchronize furnace events with LIMS or ELN systems. An optional RS485-to-USB converter and Windows-compatible configuration utility are available separately. For regulated environments, the optional RS485 package supports electronic signature capture, audit trail generation, and user-access-level permissions—facilitating alignment with ALCOA+ data governance principles.

Applications

• Residue analysis and total ash quantification in food, pharmaceutical excipients, and environmental filter media.
• Pre-treatment of catalyst supports and ceramic precursors prior to XRD or BET surface area analysis.
• Controlled oxidative decomposition of organic matrices in metallurgical assay workflows.
• Low-mass thermal annealing of thin-film sensors, MEMS substrates, and battery electrode coatings.
• Calibration verification of thermocouples and reference materials using fixed-point thermal holds (e.g., Cu melting point at 1084.62 °C).
• Small-batch sintering of metal injection molding (MIM) green parts and dental zirconia blanks.

FAQ

What is the maximum recommended continuous operating temperature?
The furnace is rated for sustained operation at 1000 °C. Prolonged use above 950 °C may accelerate aging of the NiCr heating element and refractory lining.
Can this furnace be used under inert or reducing atmospheres?
No—the standard SX2-2.5-10 is designed exclusively for air atmosphere operation. For controlled gas environments, consult Yoyilab’s dedicated tube furnace series with flanged quartz or alumina tubes and gas inlet/outlet ports.
Is calibration documentation provided with shipment?
A factory-assembled temperature uniformity report (per ASTM E220) and thermocouple calibration certificate (traceable to NIM, China) are available upon request at no additional cost.
How often should routine maintenance be performed?
Inspect door gasket integrity and chamber interior for spalling every 100 operational hours; verify thermocouple response using a calibrated reference thermometer annually or after 500 thermal cycles.
Does the unit support remote start/stop via digital I/O?
Not natively—but the RS485 interface allows integration into PLC-controlled lab automation systems using Modbus RTU protocol for external triggering and status feedback.