Thermo Scientific Process Thickness Gauge
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Thermo Scientific Process Thickness Gauge |
| Price Range | USD 70,000 – 140,000 |
Overview
The Thermo Scientific Process Thickness Gauge is an industrial-grade, non-contact online measurement system engineered for real-time, high-stability thickness and coating weight monitoring in continuous metal strip production environments. Based on dual-energy X-ray transmission (XRT) and/or X-ray fluorescence (XRF) principles—depending on configuration—the instrument delivers traceable, physics-based measurements without physical contact, eliminating wear, calibration drift, or process interruption. Designed for integration into hot- and cold-rolling mills, galvanizing lines, and aluminum foil production facilities, it operates under harsh ambient conditions (e.g., elevated temperature, vibration, dust, and electromagnetic interference), maintaining metrological integrity across multi-shift operation. Its core function is to support closed-loop process control by feeding validated thickness data directly to PLCs and DCS systems, enabling dynamic roll gap adjustment and tension optimization.
Key Features
- Non-contact, radiation-based measurement using calibrated X-ray transmission (for substrate thickness) and XRF (for metallic coating mass per unit area)
- Ruggedized stainless-steel housing rated IP65/NEMA 4X for mill-floor deployment
- Real-time measurement frequency up to 100 Hz per sensor head, synchronized with line speed
- Automatic temperature compensation and beam stabilization algorithms to mitigate thermal drift
- Modular architecture supporting single- or dual-sided configurations (top/bottom measurement)
- Integrated diagnostic logging and self-calibration verification per ASTM E1316 and ISO 15630-3
- Compliance with IEC 61508 SIL2 for safety-related control functions when integrated into safety instrumented systems
Sample Compatibility & Compliance
The system is validated for ferrous and non-ferrous substrates including carbon steel, stainless steel, aluminum alloys (1xxx–8xxx series), and copper-clad laminates. It accommodates strip widths from 600 mm to 2,200 mm and thickness ranges spanning 0.1 mm to 6.0 mm (substrate) and coating weights from 10 g/m² to 600 g/m² (Zn, Al-Zn, Sn, CrO₃). All measurement protocols conform to relevant international standards: ASTM A90/A90M (coating mass), ASTM E577 (thickness of metallic coatings), ISO 2178 (non-magnetic coatings on magnetic base metals), and EN 10347 (continuous organic coated steel). The instrument’s radiation safety design meets FDA 21 CFR 1020.40 and IEC 62495 requirements; full licensing documentation and shielding certification are provided for local regulatory submission.
Software & Data Management
Operated via Thermo Scientific Process Insight™ software—a Windows-based HMI platform compliant with FDA 21 CFR Part 11—enabling electronic signatures, audit trails, and role-based access control. Measurement data is timestamped, archived in SQL Server databases with ≥18-month retention, and exportable in CSV, XML, or OPC UA format for MES/ERP integration. Trend analysis includes SPC charts (X̄-R, CUSUM), deviation mapping across strip width (edge-to-edge profiling), and correlation reports linking thickness variation to upstream variables (e.g., roll force, emulsion flow, annealing temperature). All firmware updates undergo GLP-compliant validation, and software release notes include traceability to ISO/IEC 17025 clause 5.9.4.
Applications
- Hot-rolled coil thickness uniformity verification prior to pickling and cold rolling
- Real-time feedback control of tandem cold mill interstand tensions and reduction ratios
- Zinc or aluminum-zinc alloy coating mass monitoring on continuous galvanizing lines (CGL)
- Chromium passivation layer thickness verification on tinplate production lines
- Aluminum foil gauge control during foil rolling and slitting operations
- Scrap minimization through early detection of out-of-spec thickness excursions (±0.5 µm resolution typical)
FAQ
Is the system certified for use in hazardous areas (e.g., Zone 2 or Class I Div 2)?
Yes—optional ATEX/IECEx-certified variants are available with intrinsically safe sensor heads and isolated signal conditioning.
Can it measure multi-layer coatings (e.g., Zn + organic topcoat)?
XRF mode quantifies metallic layers only; a hybrid configuration combining XRF and near-infrared (NIR) sensors is required for polymer topcoat thickness—available as a custom OEM integration.
What is the typical installation lead time and commissioning scope?
Standard delivery is 14–16 weeks ex-factory; Thermo-certified field engineers perform mechanical alignment, radiation survey, system calibration against NIST-traceable reference standards, and DCS interface validation.
Does the system support predictive maintenance alerts?
Yes—embedded diagnostics monitor X-ray tube output stability, detector gain drift, and cooling system performance, triggering maintenance tickets via email/SNMP when thresholds exceed ISO 13374-defined anomaly classes.
