Dual-side X-ray fluorescence coating weight gauge for galvanizing, tinning, and aluminum coating lines. Real-time per-side measurement with sub-100 ms response and ± 1% accuracy.
Both gauges measure in line, dual-side, using the same integrated measurement head and the same C-frame and O-frame configurations. What differs is the controls: a PLC on the Perfecta, an industrial PC on the Accura.
Dual-side X-ray fluorescence coating-weight gauge mounted on the production line for real-time, closed-loop control of galvanizing, tinning, and aluminum coating.
Dual-side X-ray fluorescence coating-weight gauge mounted on the production line, with PC-based controls in place of a PLC. Same integrated measurement head and the same frame configurations as the Perfecta.
Two opposing XRF heads excite the coating layer on both sides of the strip simultaneously.
Detector measures characteristic fluorescent emissions from Zn, Sn, or Al coating with element selectivity.
Substrate-corrected coating weight in g/m² published per side at 100 ms refresh.
Output to L2 system or PLC for air knife or pot-temperature feedback control.
An X-ray beam ejects inner-shell electrons from the atoms in the coating. As outer electrons fall in to fill those vacancies, each element emits X-rays at its own characteristic energy. The energy says which element is present. The intensity says how much of it is there.
For zinc that signal is the K-alpha line at about 8.63 keV. Signal intensity is proportional to coating weight, once three effects are corrected for.
Photoelectric effect, then fluorescence emission, then detection.
Supporting systems ship with it: closed-loop water chiller, servo drive motion control, industrial cabling assemblies, safety interlocks and air purge. The frame, sensor heads, motion control, cooling and cabling are common to both the Perfecta and the Accura platform; the electronics are what differ.
Food-grade packaging. Sn L-line fluorescence at 3.4 to 3.7 keV.
Zinc coating for automotive and construction applications.
Superior corrosion resistance. Simultaneous Al and Zn measurement.
Heat-resistant Al-Si for exhaust systems. Al K-line measurement.
Thin zinc layers for automotive body panels. High precision.
Zn-Al-Mg alloys. Multi-element measurement capability.
Every one of these is measured non-contact, in line, in real time.
| Measurement principle | X-ray fluorescence (XRF), dual-side |
| Coatings supported | Zinc, tin, aluminum, terne |
| Coating weight range | 5 to 350 g/m² per side |
| Accuracy | ± 1% of nominal |
| Response time | < 100 ms |
| Substrate compensation | Auto, single-tag select |
| Source type | Sealed XRF tube, air-cooled |
| Tube voltage | 40 kV maximum |
| Tube current | 0.5 to 1.0 mA |
| Warm-up time | < 5 minutes from cold start |
| PLC platform | Allen-Bradley ControlLogix or Siemens S7-1500 |
| Protocol | EtherNet/IP, PROFINET, OPC UA |
| HMI | EXOR MicroEdge 21.5 in. wide HMI |
| Power | 208/240/480 VAC, 50/60 Hz, 4 kVA |
| Frame type | C-frame, O-frame, or split frame |
| Throat depth | 24 in. (610 mm) standard |
| Strip speed | Up to 600 ft/min (183 m/min) |
| Ambient temperature | 0 to 50 °C operating |
200 kV X-ray gauge for heavy strip on Allen-Bradley.
100 kV X-ray gauge for cold mill on Siemens.
Stereo line-scan width gauge for slitting lines.
Tell us your line speed, coating spec, and current control method. We will model the savings and propose a CWG configuration with measured ROI.