HuTai HT-MF Series 1000°C Benchtop Muffle Furnace (Models: 2.5–10TP, 4–10TP, 8–10TP, 16–10TP)
| Brand | HuTai |
|---|---|
| Origin | Shanghai, China |
| Instrument Type | Box-Type Muffle Furnace |
| Maximum Temperature | 1000 °C |
| Temperature Control Accuracy | ±1 °C |
| Max Power | 4 kW (model-dependent: 1.5–16 kW) |
| Heating Rate to Max Temp | ≤40 °C/min |
| Heating Element | High-Performance Alloy Resistance Wire (HRE-grade) |
| Internal Chamber Dimensions | 200 × 120 × 80 mm (L×W×H) |
| Chamber Volume | 1.9 L (base model) |
| Insulation | Ceramic Fiber + Air-Gap Double-Wall Structure |
| Surface Temperature at 1000 °C/1 h | ≈50 °C |
| Controller | Intelligent PID with Multi-Step Ramp/Soak Programming |
| Compliance | Designed for GLP-compliant thermal processing per ISO/IEC 17025 laboratory requirements |
Overview
The HuTai HT-MF Series is a line of compact, benchtop muffle furnaces engineered for precision thermal processing in analytical, metallurgical, and materials science laboratories. Operating on resistive heating principles, these furnaces isolate samples within a sealed, refractory-lined chamber—preventing direct contact with combustion gases or heating elements—thereby ensuring contamination-free, oxidation-controlled environments essential for ashing, calcination, sintering, annealing, and heat-treatment protocols. The series features an integrated monoblock architecture: the furnace chamber, insulation assembly, and microprocessor-based temperature controller are co-housed in a single structural unit, minimizing footprint while enhancing thermal stability and operator safety. All models are rated for continuous operation up to 1000 °C (with optional 1200 °C variants available), meeting foundational thermal performance expectations for ISO 8573-1, ASTM E1112, and USP heavy metal residue testing workflows.
Key Features
- Monolithic benchtop design reduces floor space requirements by up to 35% compared to traditional split-chamber configurations.
- High-efficiency HRE-alloy resistance heating elements deliver uniform radiant heat distribution and extended service life (>8,000 hours at 1000 °C).
- Ceramic fiber insulation (density: 128 kg/m³) combined with dual-layer air-gap wall construction limits external surface temperature to ≤50 °C during sustained 1000 °C operation—exceeding IEC 61000-3-2 Class A thermal safety thresholds.
- Intelligent PID temperature controller supports up to 30 programmable ramp/soak segments, with adjustable heating/cooling rates (0.1–20 °C/min), dwell time (1 sec–99 h 59 min), and automatic power modulation to minimize thermal overshoot.
- Large-format LCD display presents real-time chamber temperature, setpoint, elapsed time, segment number, and fault codes simultaneously—enabling rapid operational verification without menu navigation.
- Over-temperature cut-off, door-open interlock, and grounded chassis meet EN 61000-6-3 EMC and EN 61010-1 safety standards for Class II laboratory equipment.
Sample Compatibility & Compliance
The HT-MF series accommodates crucibles (alumina, quartz, platinum), ceramic boats, and metal retorts up to 1.9 L volume (standard model). Chamber geometry ensures radial temperature uniformity of ±5 °C across the working zone—validated per ASTM E220 calibration methodology using NIST-traceable thermocouples. Units are configured for use in GLP-regulated environments: audit trails (via optional RS485/Modbus RTU interface) support 21 CFR Part 11-compliant data integrity when paired with validated LIMS or ELN platforms. All electrical components comply with RoHS Directive 2011/65/EU; CE marking reflects conformity with Machinery Directive 2006/42/EC and Low Voltage Directive 2014/35/EU.
Software & Data Management
While the base unit operates via front-panel controls, optional communication modules enable integration into centralized lab automation systems. The RS485 interface supports Modbus RTU protocol for remote setpoint adjustment, real-time temperature logging, and alarm status polling. When connected to HuTai’s HT-LogSuite v3.2 (Windows-based), users can generate PDF-certified temperature profiles compliant with ISO/IEC 17025 clause 7.8.2—complete with electronic signatures, calibration metadata, and deviation alerts. Data export formats include CSV, XML, and PDF/A-1a for archival traceability. Firmware updates are performed via USB port without disassembly.
Applications
- Ash content determination: ASTM D3174, ISO 1171, and AOAC 942.05 methods for coal, biomass, and foodstuffs.
- Residue-on-ignition (ROI): USP , EP 2.2.34, and JP 2.05 for pharmaceutical excipients and APIs.
- Metallurgical flux fusion: Preparation of borate-lithium metaborate beads for XRF analysis (ASTM E2482, ISO 20008).
- Thermal gravimetric pre-conditioning: Sample stabilization prior to TGA or DSC analysis per ASTM E1131.
- Material annealing & stress relief: Controlled cooling cycles for metal alloys, ceramics, and semiconductor substrates.
FAQ
What is the maximum recommended continuous operating temperature?
Continuous operation is rated at 1000 °C for all standard HT-MF models. Extended-duration runs above 950 °C require periodic verification of thermocouple drift and insulation integrity.
Can the furnace be used under inert atmosphere?
Yes—optional quartz or stainless-steel gas inlet/outlet ports (M6 thread) support nitrogen or argon purging; maximum flow rate: 1.5 L/min at 0.1 bar overpressure.
Is calibration certificate included?
A factory-as-tested calibration report (per ISO/IEC 17025) is supplied with each unit, documenting three-point verification (200 °C, 600 °C, 1000 °C) using a calibrated reference thermocouple.
How often does the heating element require replacement?
Under typical usage (≤6 h/day at 1000 °C), HRE alloy elements maintain functional integrity for ≥5 years; visual inspection every 500 operating hours is advised.
Does the controller support Ethernet or Wi-Fi connectivity?
No—only RS485 serial interface is provided as standard; Ethernet gateways may be added externally via third-party Modbus TCP converters.
