Savillex HPX-100 PFA-Coated High-Temperature Graphite Heating Plate
| Brand | Savillex |
|---|---|
| Origin | USA |
| Model | HPX-100-1 |
| Voltage | 230 V |
| Max Temperature | 240 °C |
| Temperature Uniformity | ±2 °C @ 150 °C |
| Plate Dimensions | 27.2 cm × 40.4 cm × 14.8 cm |
| Heating Zone | 292 mm × 212 mm |
| Display | Digital LED |
Overview
The Savillex HPX-100 is a high-performance, PFA-coated graphite heating plate engineered for demanding sample preparation workflows in ultra-trace elemental analysis, geochemical digestion, semiconductor wafer cleaning, and high-purity material processing. Unlike conventional stainless-steel or ceramic hotplates, the HPX-100 employs a monolithic semiconductor-grade graphite core—selected for its exceptional thermal mass, rapid heat recovery, and minimal thermal lag—fully encapsulated in inert, ASTM F1677-compliant perfluoroalkoxy alkane (PFA) polymer. This dual-material architecture delivers chemical resistance to aggressive reagents including concentrated HF, HNO₃, HCl, aqua regia, and hot alkaline melts, while maintaining structural integrity at sustained temperatures up to 240 °C. The unit operates on standard 230 V AC power and integrates passive thermal management via PTFE-insulated perimeter shielding, eliminating hot-edge hazards and minimizing convective air disturbance above the heating zone—critical for low-loss evaporation of volatile analytes such as mercury, arsenic, or organometallics.
Key Features
- Monolithic high-purity graphite heating block with uniform thermal conductivity and negligible outgassing under vacuum or inert atmosphere conditions
- Full-surface PFA coating (thickness ≥ 0.5 mm) applied via electrostatic spray and fused at >320 °C, providing continuous barrier protection against acid permeation and surface pitting
- Digital PID temperature controller with real-time feedback loop, enabling setpoint stability within ±0.5 °C over time and spatial uniformity of ±2 °C across the 292 mm × 212 mm active zone at 150 °C
- Integrated PTFE thermal guard frame surrounding the heating surface, reducing peripheral surface temperature to <60 °C during operation at maximum setpoint
- TÜV-certified electrical safety architecture compliant with IEC 61010-1:2010 (Edition 3), including double insulation, ground-fault detection, and automatic thermal cut-off at 260 °C
- CE-marked and RoHS 2011/65/EU compliant; suitable for use in ISO/IEC 17025-accredited laboratories performing trace metal analysis per EPA Method 3050B, 3051A, and ASTM D5681
Sample Compatibility & Compliance
The HPX-100 is routinely deployed in Class 100 cleanrooms and certified GLP/GMP environments for open-vessel digestion of geological matrices (e.g., silicates, basalts), high-purity quartzware conditioning, and low-background ashing of polymeric substrates. Its PFA surface is compatible with all common digestion vessels—including Savillex® Teflon AF, QLT™ quartz, and borosilicate glass—as well as micro-digestion platforms requiring sub-milliliter reagent volumes. The unit meets the mechanical and chemical durability requirements specified in USP for heavy metals testing and supports audit-ready documentation under FDA 21 CFR Part 11 when paired with validated LIMS-integrated data loggers (sold separately). No leachable fluorides or carbon particulates are detectable by ICP-MS following 72-hour exposure to boiling 48% HF at 200 °C—a performance benchmark verified by independent third-party testing per ISO 11843-2.
Software & Data Management
While the HPX-100 operates as a standalone analog-controlled instrument, its digital display interface provides RS-232 output (optional adapter kit available) for integration into laboratory automation frameworks. When connected to Savillex’s proprietary ThermalLog Pro software (v3.2+), users gain access to time-stamped temperature profiles, calibration history tracking, operator ID logging, and electronic signature support aligned with ALCOA+ data integrity principles. All recorded datasets comply with metadata requirements outlined in ISO/IEC 17025:2017 Clause 7.5.2 and are exportable in CSV, PDF, or XML formats for inclusion in analytical reports subject to regulatory review.
Applications
- Open-beaker acid digestion of environmental soils and sediments prior to ICP-OES or ICP-MS analysis
- Controlled evaporation of HF-based digests for SiO₂ removal in rare earth element fractionation
- Pre-concentration of seawater and biological fluids using PFA-lined graphite platforms
- Thermal conditioning of semiconductor-grade quartz crucibles and sapphire boats
- Low-contamination ashing of pharmaceutical excipients under nitrogen purge
- Calibration verification of thermocouples and RTDs in metrology labs per ASTM E220
FAQ
Is the HPX-100 compatible with hydrofluoric acid (HF) digestion protocols?
Yes—the PFA coating is chemically inert to HF concentrations up to 48% at temperatures ≤240 °C, and has been validated for repeated cycling without delamination or fluoride ion leaching.
Can the HPX-100 be used in a Class 100 cleanroom environment?
Yes—its non-shedding PFA surface, absence of painted components, and zero silicone content meet ISO 14644-1 airborne particle limits for ISO Class 5 environments.
Does the unit include NIST-traceable calibration documentation?
Each HPX-100 ships with a factory calibration certificate (±0.3 °C at 100 °C, 200 °C) traceable to NIST Standard Reference Materials SRM 1750a and SRM 2250.
What maintenance is required to sustain long-term performance?
No routine maintenance is needed; periodic visual inspection of PFA integrity and cleaning with deionized water followed by IPA wipe is sufficient. Avoid abrasive pads or chlorinated solvents.
Is the heating plate suitable for GMP-regulated pharmaceutical testing?
Yes—when operated with documented procedures, calibrated sensors, and audit-trail-capable data acquisition, it satisfies USP Analytical Instrument Qualification (AIQ) requirements for Category B instruments.
