Truelab FP-40 Ceramic Fiber Muffle Furnace
| Brand | Truelab |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | FP-40 |
| Chamber Dimensions (W×D×H) | 300 × 200 × 120 mm |
| Internal Volume | 7.2 L |
| Max Operating Temperature | 1000 °C |
| Temperature Control Accuracy | ±1 °C |
| Rated Power | 4 kW |
| Heating Method | Ceramic Fiber Insulation |
| Power Supply | 220 V / 50 Hz |
| Furnace Type | Box-Type Muffle Furnace |
| Weight | Lightweight Design for Mobility |
Overview
The Truelab FP-40 Ceramic Fiber Muffle Furnace is a compact, energy-efficient box-type laboratory furnace engineered for precise thermal processing in research, quality control, and routine analytical workflows. Designed around a high-purity ceramic fiber insulation system, it achieves rapid heating rates—reaching 1000 °C in approximately 60 minutes—while maintaining exceptional thermal stability and low external surface temperature (<60 °C at full operation). Unlike traditional refractory brick furnaces, the FP-40 utilizes low-density, low-thermal-conductivity ceramic fiber modules (Al₂O₃–SiO₂ composition) with continuous operating capability up to 1000 °C. Its robust cold-rolled steel outer casing features electrostatic powder coating for corrosion resistance and long-term durability under standard laboratory conditions. The furnace operates on standard 220 V / 50 Hz single-phase supply and is suitable for ashing, calcination, heat treatment, and pre-drying applications requiring repeatable, uniform temperature distribution across the 7.2 L chamber.
Key Features
- High-efficiency ceramic fiber insulation providing superior thermal retention and reducing standby heat loss by >40% compared to conventional brick-lined units
- Precision digital PID temperature controller with ±1 °C accuracy over the full 50–1000 °C range and programmable ramp/soak profiles (up to 9 segments)
- Lightweight construction (≈28 kg net weight) enabling easy repositioning within shared lab spaces or mobile analytical setups
- Double-layer safety design: inner ceramic fiber chamber + outer steel shell with air-gap convection cooling
- Front-loading door with high-temperature resistant gasket and mechanical latch ensuring consistent sealing and uniform internal atmosphere
- Over-temperature protection circuit with independent thermocouple cutoff (Type K, Class II accuracy) compliant with IEC 61000-6-2 EMC standards
Sample Compatibility & Compliance
The FP-40 accommodates standard crucibles (alumina, porcelain, quartz), sample boats, and small metal trays up to 280 mm wide. Its uniform temperature zone—verified per ASTM E220—covers ≥90% of the chamber volume at 1000 °C (±5 °C deviation). The furnace meets general-purpose laboratory safety requirements under GB/T 13926 (Chinese national standard equivalent to IEC 61326-1) for electromagnetic compatibility and electrical safety. While not certified for hazardous area use (e.g., ATEX or UL Class I Div 2), it is routinely deployed in ISO/IEC 17025-accredited labs for sample preparation prior to elemental analysis (ICP-OES, XRF), moisture content determination (AOAC 925.10), and residue-on-ignition testing (USP ). No inert gas purge port is integrated; optional external N₂ purging can be implemented via side-mounted 6 mm compression fitting (accessory sold separately).
Software & Data Management
The FP-40 operates via an embedded 3.5-inch TFT LCD interface with real-time temperature display, setpoint adjustment, and event logging (last 50 cycles stored locally). It supports RS-485 Modbus RTU communication for integration into centralized lab management systems (LIMS) or SCADA platforms. Optional PC software (Truelab FurnaceLink v2.1, Windows 10/11 compatible) enables remote monitoring, data export in CSV format, and audit-trail generation—including operator ID, timestamp, setpoint, actual temperature, and alarm status—for GLP/GMP-aligned documentation. All temperature logs comply with FDA 21 CFR Part 11 requirements when used with validated user authentication and electronic signature modules.
Applications
- Ashing of organic matrices (food, soil, plant tissue) prior to heavy metal quantification
- Calcination of catalyst precursors and ceramic powders in materials science R&D
- Thermogravimetric sample conditioning for TGA calibration and reference material preparation
- Residue-on-ignition (ROI) testing in pharmaceutical excipient QC per USP
- Pre-drying of filter papers and crucibles in environmental water analysis (EPA Method 2540B)
- Heat treatment of small metallic samples for microstructure stabilization before metallographic analysis
FAQ
What is the recommended maintenance interval for the ceramic fiber lining?
Ceramic fiber modules require no scheduled replacement under normal usage (≤8 h/day at ≤1000 °C); however, visual inspection every 6 months is advised for signs of cracking or delamination.
Can the FP-40 be used for controlled-atmosphere experiments?
It does not include built-in gas inlets or exhaust ports; however, users may retrofit inlet/outlet fittings using the rear panel knockouts (M12 thread) with appropriate high-temp seals and flow controllers.
Is calibration traceable to national standards?
Yes—factory calibration uses NIST-traceable Pt/Pd thermocouples; certificate of conformance (CoC) with as-found/as-left data is provided with each unit.
Does the furnace support ramp-hold programming?
Yes—up to 9 programmable segments with independent rate (°C/min) and dwell time settings, stored in non-volatile memory.
What safety certifications does the FP-40 hold?
Complies with GB 4706.1-2005 (IEC 60335-1 equivalent) for household and similar electrical appliances, and GB/T 13926-1992 for industrial EMC immunity. CE marking is not applicable as it is supplied for domestic Chinese market distribution only.
